Feasibility of BNCT and Neutron Imaging with 1Hz, 5kJ Plasma Focus Neutron Source at the ICTP-MLAB Laboratory
|
|
- Audra Nash
- 5 years ago
- Views:
Transcription
1 Article ID: WMC ISSN Feasibility of BNCT and Neutron Imaging with 1Hz, 5kJ Plasma Focus Neutron Source at the ICTP-MLAB Laboratory Corresponding Author: Dr. Faycal Kharfi, Senior Research Scientist, Faculty of Science, University of Setif and Nuclear Research Centre of Birine, BP.180, Algeria Submitting Author: Dr. Faycal Kharfi, Senior Research Scientist, Faculty of Science, University of Setif and Nuclear Research Centre of Birine, BP.180, Algeria Article ID: WMC Article Type: Research articles Submitted on:24-feb-2012, 01:43:58 PM GMT Article URL: Subject Categories:RADIATION ONCOLOGY Keywords:Dense Plasma Focus, BNCT, MCNP, Neutron Imaging Published on: 25-Feb-2012, 10:22:40 AM GMT How to cite the article:kharfi F. Feasibility of BNCT and Neutron Imaging with 1Hz, 5kJ Plasma Focus Neutron Source at the ICTP-MLAB Laboratory. WebmedCentral RADIATION ONCOLOGY 2012;3(2):WMC Copyright: This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. Additional Files: illustration1 illustration2 illustration3 illustration4 illustration5 illustration6 manuscript WebmedCentral > Research articles Page 1 of 15
2 Feasibility of BNCT and Neutron Imaging with 1Hz, 5kJ Plasma Focus Neutron Source at the ICTP-MLAB Laboratory Author(s): Kharfi F Abstract Plasma Focus (PF) devices operated in Deuterium mode (D-D) can be advantageously used as a high intensity short-duration neutron source for many original medical and new imaging applications. At the Multidisciplinary Laboratory (MLAB) of the International Centre for Theoretical physics (Trieste, Italy), a low cost compact and efficient 1 Hz, 5kJ Plasma Focus source was designed and manufactured. This device will be used in several domains of science and basis research. The purpose of the implementation of Plasma Source Device (PFD) at the MLAB is not only to further investigate the physics of the plasma focus; its uniqueness derives from the creation of a source of radiation and particle beams for diagnostic and technology development as well as applications to interdisciplinary projects such as cultural heritage, biology and medicine. This source allows a neutron yield of ~108 per shot (pulse). The duration of the pulse is about 10 ns. In this paper, a general description of this source and its mode of operation are presented. The main characterises of neutrons produced by the Plasma Focus chamber will be outlined. A proposition and a draft design concerning a Boron Neutron Capture Therapy (BNCT) and neutron imaging exposure systems that can be implemented around this source are presented in details. The advantages and limitations such as resolution and pulse mode of operation affecting the utilisation of this kind of source for BNCT and neutron imaging are also discussed. Keywords: Dense Plasma Focus, BNCT, MCNP, Neutron Imaging. Introduction The Plasma Focus device (PFD) was independently developed by Filippov et al [1] and Mather [2]. The principle of functioning of this device is based on D-D or D-T fusion. From 1962 until recent years, many devices were constructed and studied by varying different parameters such as voltage, energy and anode current for different applications. PF is a pulsed device that can produce, among other emissions, short bursts of hard X-rays, fast neutron and ions. The fact that the burst duration is in the ns range and the possibility of turning the device off make Plasma Focus an interesting alternative to commercially available radioisotopic sources of both neutrons and hard X-rays. In the MLAB Laboratory of the International Centre for Theoretical Physics (ICTP, Trieste), a 5kJ dense plasma focus (DPF) device was constructed and became available for use in This Plasma Focus Source, powered by four interconnected capacitors, was designed and developed at the laboratory as part of a training program on plasma technology. Particular interest has been shown in the plasma focus (PF) device and its ability to produce rather high fluxes of fast neutrons and hard X-rays [3-6]. PFD was successfully tested and used as a source for X-rays imaging [7]. Here, the image was taken from a single shot or from superposition of a number of shot. It s depends on the sample composition and thickness. Using PFD for BNCT and Neutron Imaging (NI) is a possible but a complicated task. This because the short duration of the PF pulse (3-20 ns) and the produced low neutron yield do not allow the production of a well exposed neutron image for NI and optimum exposed tumor site for BNCT in one pulse except for some cases. In these domains of PF applications, only few works were published so far and just some demonstration systems were manufactured until now. For example, a position sensitive imaging detector with PF neutron source (ING-103) of 20 ns duration and 3x1010 neutrons yield was proposed by DEL MAL VENTURES as pulsed neutron imaging system. Some interesting applications performed around a neutron generator (ING-07) and a PF neutron sources are presented in reference [8]. Our work is to study how a PF neutron source, especially the ICTP one, can be used for neutron imaging and BNCT. The major problem to overcome with this kind of source is the short duration of the pulse (few ns) because it s well known that for the production of perceptible image to be detected by a high sensitivity CCD camera, a 1 to 2 lux light intensity is necessary [9]. For an ideal detection system the minimum neutrons fluence able to produce net image that can be differentiated from WebmedCentral > Research articles Page 2 of 15
3 the camera noise is ~103 n/cm2 for an exposure time of 1 ms and a maximum camera pixel size (resolution) of 1mm x 1mm. For BNCT, a maximum fluence of 1012 n/cm2 is generally required for the treatment of some type cancers. The aim of this work is the presentation and discussion of the possibilities and limitations related to the use ICTP PF-5 neutron source for neutron imaging and BNCT. The ICTP DPF-5 neutron source has been constructed by an ICTP research team under the supervision of Pr. V.A. Gribkov [10]. ICTP PF-5 source description and capability Plasma Focus devices flourished in the 70 s and 80 s as nuclear fusion devices based in the pinch phenomenon occurring during the path of high electric currents through the working gas. After well understanding of the operation mechanism of Plasma Focus a large variety of working gas and configurations has been studied and developed in order to increase the neutron emission yield. Actually, PF are among the cheapest available neutron generators with extremely short pulses duration of tens of ns that permit a number of specific neutrons applications. The principle of PF is based on the fusion of special kind (deuterium and or Tritium) gas between two electrodes when an intense electrical discharge is applied. The Plasma Focus phenomenon occurs at the open end of coaxial electrodes when an intense electrical discharge between them is applied. The coaxial electrodes are located inside a vacuum chamber filled with deuterium gas at low pressure. The PF-5 source being constructed at the ICTP consists of banks that discharge over coaxial electrodes through spark-gaps. The capacitor consists of Four capacitors connected in parallel (Fig.1). After starting discharge in the gap between the electrodes, the created azimuthal magnetic field produces a Lorentz force that pushes the sheath current towards the open end of the electrodes (Fig.1). On its arrival at the open end, the magnetic field starts to contract, accelerating the plasma towards the axis. Finally D-D fusion reactions process starts for a pulse of time and the sheath clashes on the axis in the form of a small dense plasma cylinder. The life time of the focus is about 10ns. Under suitable conditions the focus generates beams of ions, electrons, neutrons and X-ray. Using Deuterium gas PFD generates fast neutron beam pulses of 2.5 MeV in Energy. The emitted neutrons can be applied to perform radiographs and substance analysis, taking advantage of the penetration and activation properties of generated fast neutrons. The main characteristics of the PF-5 neutrons source are presented in table 1. The first remark that can drawn for the PF-5 source characteristics is the fact that dynamic neutron radiography is not for interest because of the maximum pulse rate repetition (1Hz) not allowing a suitable frame rate. It's well established that for the available imaging technology an exposure time of 1ms is required to be able to investigate flow properties with a moderate speed of 1m/s with a resolution of 1mm. Another parameter affecting the dynamic imaging process is the speed (decay time of the scintillator) that should less than the exposure time in order to avoid frames (images) overlapping. As example the decay time a LiF+ZnS:Ag screen is ~100 µs, an exposure time less than this value is not suitable for dynamic neutron imaging. In order visualize this flow with best viewing conditions a frame rate of about 1000 Hz is needed. Indeed only static imaging is possible and with interest with this PF source. Radiography with thermal neutron is a well established non-destructive method. Neutrons of higher energy than 0.3 ev are used for neutron radiographic examinations in much smaller extent. Fast neutrons are used in neutron imaging because of their unique material penetrating properties and their relatively high source strength at which high neutron yields can be produced. Fast Neutron imaging will become easier as neutron yields increase. In the case of PFD the neutron yield is so important but the neutron emission duration and the pulses repetition frequency are the main barrier for their uses for neutron dynamic imaging. Neutron detector efficiency and generated neutron yield with PFD must be well optimized to produce image signal that can separated from the CCD-camera noise (background). PFD for BNCT Boron Neutron Capture Therapy is an experimental radiotherapy technique that uses neutron beam to cancer therapy for sites such as glioblastoma multiforme, a malignant brain tumor, where conventional radiation therapies fail. The Principle of BNCT is based on the injection of substance that contains Boron into blood vessel of the patient. After approximately 30mn the substance reaches the tumor site. The patient then will be exposed to neutron beam at the level of the tumor site. Neutrons are captured by Boron fixed in the tumor cells. 10 B has a very large WebmedCentral > Research articles Page 3 of 15
4 capture cross section (3830 barns) for thermal neutrons and decays into an alpha particle and a lithium nucleus, the combined ranges of which are ~10 µm, approximately one cell diameter. These last charged particles are responsible of tumor cells elimination. For BNCT success, a thermal neutron fluence of about n/cm 2 should be delivered to a tumor with 10 B concentration of 30 µg/g [11-13]. Epithermal neutron are more suitable for the treatment (1 ev < E < 100 kev). This because epithermal neutron thermalize in the biological tissue at de depth of about 2.5 cm through scattering process with a low absorption probability that can cause damage to normal tissue. Therefore, they can provide a maximum thermal neutron flux density at the tumor site with a minimum damage. The design of irradiation system to be implemented around PFD source must take into consideration that the neutrons must pass through a neutron moderator, which shapes the neutron energy spectrum suitable for BNCT treatment (epithermal neutron, E~1eV). Before entering the patient the neutron beam is shaped by a beam collimator and fast neutron are filtered. While passing through the tissue of the patient, the neutrons are slowed by collisions and become low energy thermal neutrons. In this work, the proposed design of a BNCT irradiation system is shown in fig.2. In this work an MCNP simulation is performed in order to get the shape of the neutron spectrum just before the entrance of the collimator with respect to the proposed design and geometry (Fig.2). For a practical purpose, just the important zones of the proposed design (Fig.2) are taken into consideration in the MCNP input geometry shown in Fig.3. Results of MCNP simulation are shown in Fig.4. The available DPF performance, neutron flux intensity (MCNP) and required number of shots required to perform BNCT are presented in table 2. Regarding the results of table 2, a very long exposure time is required to reach the recommended neutron fluence for BNCT. To overcome this limitation, the improvement of DPF performance is necessary. With the actual performance, the studied DPF device can only be used to irradiate guinea pigs or as a test facilities. We believe that improvement in BNCT protocol and injected substance could contribute to allow the effective utilization of actual low neutron fluence DPF device for the treatment of some kind of superficial or low depth head tumor and especially for skin melanoma. PFD for Neutron Imaging The proposed design is based on the available technology for radiographic imaging system. Scintillator-CCD-camera based system was selected because of the variety of scintillator materials and CCD-chip that can be combined. Image intensifier associated to high dynamics CCD is more than necessary to perform ultra short exposure down to 10 ns. The most important parameters that characterize a neutron imaging system are: - The minimum exposure time allowing the production a detectable image: this parameter depends closely on the neutron yield, detection efficiency of the scintillator and quantum detection efficiency of the camera. - The image resolution; - The contrast. In the design of detection imaging system used with PF-5 source some considerations should be taken into account: 1. The detector should be well shielded in order to avoid contribution electromagnetic radiation to CCD heating and noise signal generation 2. Neutron beam should be filtered from X-ray especially in order to consider produced image due to fast neutrons essentially. The source should be shielded with Lead or Bismuth. 3. Resolving the problem of strong electromagnetic pickup; 4. Improving the produced neutron yield to maximum by choosing the most appropriate PF configuration. A yield of n/pulse is quite enough; 5. Selecting a scintillator screen of maximum detection efficiency. For example detection efficiency of 1% of LiF+ZnS:Ag (500µm) for fast neutron is insufficient with a neutron yield of 10 8 n/pulse. The following relations govern the design of neutron imaging detection system: 1. Flux intensity: the neutron beam intensity at the level of the detection system is proportional to the available source intensity (Eq.1) [14]. Where Flux 0 and Flux d are respectively the neutron flux at the source and detector levels, L is the source to detector distance and D is the source or collimator inlet aperture diameter. 2. The neutron detection and light escape efficiencies: If Sintillator+ CCD-camera is used as detection system; the light escape efficiency from the scintllator will be WebmedCentral > Research articles Page 4 of 15
5 given by the expression of Eq.2. The term (1- exp(-d/λ n ) represent the neutron detection efficiency which depends closely on the scintillator thickness. Where d is the scintillator thickness, λ cp, λ l and λ n are respectively the charged particle, the emitted light and the neutron free path in the scintillator material. 3. The image resolution (IR): it s generally computed according to the measurement of total image geometric unsharpness given by Eq.3 [14]. Where l is the object to image detector distance. The minimum neutron fluence to produce detectable image is varying from 10 3 to 10 4 n/cm 2 which is equivalent to 10 to 100 n/detector-pixel when an amount of 10x10 pixels per cm 2 is used. The image resolution for digital detector is defined as the full width at half maximum (FWHM) for the line spread function (LSF). Line spread function is response of completely absorbing object with an infinitesimally narrow slit [11]. LSF due to scintillator contribution can be expressed by Eq.4 [15]. Where d is the scintillator thickness and µ i is the corresponding inherent unsharpness. The total line spread function is determined by the convolution of all different contributions and tends to have a Gaussian form given by Eq.5 [16]. Where x indicates the position along the measuring image axis and σ x is the standard deviation. The line spread function depends on the geometry of the detection system and the divergence of the neutron beam. For a case of isotopic neutron source; the line spread function has a standard deviation of Dl/L 40 [16]. In order to balance between neutron intensity and homogeneity in one hand and neutron image quality in another hand an L/D varying between 10 and 100 were considered. A neutron pickup diameter from the PF chamber of 1 cm is reasonable according to PFD mode of operation. This allows an irradiation area diameter varying between 1.5 cm to 6.2 cm for 1.5 of neutron beam divergent angle. After many simulations through the variation of design, performance and image quality parameters inside the boundary limits, an optimal choice was selected. The optimal design parameters and expected performance are presented in table 3. The proposed neutron imaging system to be associated to the PF-5 source is presented in Fig.5. By placing the scintillator at 50 cm from the source and the use of 2 cm lead filter, this system can produce an optimal neutron image. The neutron pick up window should be manufactured from a neutron transparent material and well placed in the front side of the PF chamber. Conclusion(s) In this work feasibility of BNCT and Neutron Imaging with PF-5 neutron source is studied and discussed. For the BNCT case, although the produced neutron flux by PFD is not very intense, the utilization of such source for radiotherapy (BNCT) is possible. The results of this feasibility study indicates that the utilization of DPF with some improvement in terms of power could be a promising alternative neutron source to obtain relatively acceptable neutron fluence rate for BNCT application to the treatment of some kind of cancer. Better results could be reached by a dedicated facility with some amelioration in terms of neutron interaction properties of the injected substance. For the case of Neutron Imaging, This study indicates that the static neutron imaging is possible with high sensitivity low noise CCD-Camera for biological application. The obtained image will be less or more noised depending on the used intensifier and CCD-Camera. Some others remarks can be drawn: 1. Dynamic neutron radiography is quite impossible with PF source with the actual pulse duration and repetition rate (10 8 n/shot, 1Hz); 2. Fast neutron imaging is possible but only for static object; 3. The obtained image with suitable X-ray filter will be 80% due to fast neutron; 4. Due to geometric and neutron yield limitation, the irradiation area will be 2.3 cm in diameter. This diameter can be increased to 10 cm but others performance parameters will be affected; 5. PFD neutron yield of allows more imaging system performance in matter of irradiation area and image resolution and purity. Finally, it is important to mention that the final utilization of DPF source for BNCT and fast neutron dynamic imaging depends on the progress in further increase of the produced neutron yield and neutron detection and conversion efficiencies. Abbreviation(s) D-D: Deuterium-Deuterium D-T : Deuterium-Tritium MLAB: Multidisciplinary laboratory WebmedCentral > Research articles Page 5 of 15
6 ICTP: International Centre for Theoretical Physics BNCT: Boron Neutron Capture Therapy NI : Neutron Imaging PF : Plasma Focus DPF: Dense Plasma Focus PFD: Plasma Focus Device ev : electron Volt kev : kilo electron Volt CCD : Charged Coupled Device Acknowledgement(s) This work was undertaken in the framework of ICTP/IAEA STEP program under the supervision of Prof. C. Tuniz. The principle author would like to thank Prof. C. Tuniz and all the Multidisciplinary Laboratory (ICTP) staff for their help and availability. References 1. N.V. Filippov, T.J. Filippova and V.P. Vinogradov, Dense high temperature plasma in a non-cylindrical z-pinch compression, Nuclear Fusion Suppl., vol. 2, p. 577(1962). 2. J.W. Mather, Investigation of the high energy acceleration mode in the coaxial gun, Phys. Fluids Suppl., vol. 7, p. 28 (1964). 3. S. Lee, T.Y. Tou, S.P. Moo, M.A. Eissa, A.V. Gholap, K.H. Kwek, S. Mulyodrono, A.J. Smith, Suryadi, W. Usada and M. Zakaullah, A simple facility for the teaching of plasma dynamics and plasma nuclear fusion, Am J. Phys., vol. 56, p. 62 (1988). 4. S. Lee, L.K. Chen, T.C. Chia, S. Kumar, A. Serban, S.V. Springham, K.A. Toh, A.C. Chew, S.P. Moo and C.S. Wong, Collaborative research using the small plasma focus, in Proc. IAEA Tech. Committee Meeting on Research Using Small Tokamaks (Serra Negra, SP, Brazil, 1993), pp S.P. Moo, C.K. Chakrabarty and S. Lee, An evaluation of a 3.3kJ plasma focus for pulsed neutron activation, in Proc. Symp.Small Plasma Physics Experiments II (ICTP, Trieste, 1989), pp C.S. Wong, S.P. Moo, J. Singh, P. Choi, C. Dumeitrescu- Zoita and C. Silawatshananai, Dynamics of x-ray emission from a small plasma focus, Malaysian J. Sci., vol. 17B, p. 109 (1996). 7. C. Moreno et al, Using a 4.7 kj plasma focus for introspective imaging of metallic objects and neutronic detection of water. CP563, Plasma Physics; IX Latin American Workshop, edited by H. Chuaqui and M. Favre, America Institute of Physics /01(2001). 8. V.I. Mirekov, Investigation of Perspectives of fast neutron radiography on the basis of non-traditional neutron sources: neutron generators with accelerating and Plasma Focus Tubes, Proceeding of International Conference on Nuclear Energy in Central Europe, Portoroz, Slovenia, 6 to 9 September, 1999, pp (1999). 9. J. Teillet et al, Feasibility of high frame neutron radiography by using steady thermal neutron beam with 106 n/cm2s flux, Nucl. Isntr. & Meth. in Phys. Resear section A, V.369, pp (1996). 10. V.A. Gribkov et al., MLAB ICTP Technical Report, Dense-Plasma-Focus-BoraICTP.pdf 11. V. Benzi et al., Feasibility analysis of a Plasma Focus neutron source for BNCT treatment of transplanted human liver, Nuclear Instruments and Methods in Physics Research B 213, pp (2004). 12. N.Golnik, K. Pytel, Irradiation facilities for BNCT at research reactor MARIA in Poland, Pol J Med Phys Eng, 12(3), pp (2006). 13. S. Agosteoa et al., Characterization of an accelerator-based neutron source for BNCT versus beam energy, Nuclear Instruments and Methods in Physics Research A 476, pp (2002). 14. J.C. Domanus, 'Practical neutron radiography,' Kluwer academic publishers. Dordrecht, (1992). 15. A.A. Harms, 'Mathematics and physics of neutron radiography', Klumer academic publishers, Dorrrechet (1986). 16. V.O. de Haan et al, 'Conceptional desing of a novel high frame-rate fast neutron radiography facility', Nucl. Isntr. & Meth. in Phys. Resear section A, 539, pp (2005). WebmedCentral > Research articles Page 6 of 15
7 Illustrations Illustration 1 Equations Illustration 2 Figure 1 WebmedCentral > Research articles Page 7 of 15
8 Illustration 3 Figure 2 WebmedCentral > Research articles Page 8 of 15
9 Illustration 4 Figure 3 WebmedCentral > Research articles Page 9 of 15
10 Illustration 5 Figure 5 WebmedCentral > Research articles Page 10 of 15
11 Illustration 6 Figure 4 WebmedCentral > Research articles Page 11 of 15
12 Illustration 7 Table 1 WebmedCentral > Research articles Page 12 of 15
13 Illustration 8 Table 2 WebmedCentral > Research articles Page 13 of 15
14 Illustration 9 Table 3 WebmedCentral > Research articles Page 14 of 15
15 Disclaimer This article has been downloaded from WebmedCentral. With our unique author driven post publication peer review, contents posted on this web portal do not undergo any prepublication peer or editorial review. It is completely the responsibility of the authors to ensure not only scientific and ethical standards of the manuscript but also its grammatical accuracy. Authors must ensure that they obtain all the necessary permissions before submitting any information that requires obtaining a consent or approval from a third party. Authors should also ensure not to submit any information which they do not have the copyright of or of which they have transferred the copyrights to a third party. Contents on WebmedCentral are purely for biomedical researchers and scientists. They are not meant to cater to the needs of an individual patient. The web portal or any content(s) therein is neither designed to support, nor replace, the relationship that exists between a patient/site visitor and his/her physician. Your use of the WebmedCentral site and its contents is entirely at your own risk. We do not take any responsibility for any harm that you may suffer or inflict on a third person by following the contents of this website. WebmedCentral > Research articles Page 15 of 15
THE HIGH-CURRENT DEUTERON ACCELERATOR FOR THE NEUTRON THERAPY. S.V. Akulinichev, A. V. Andreev, V.M. Skorkin
THE HIGH-CURRENT DEUTERON ACCELERATOR FOR THE NEUTRON THERAPY S.V. Akulinichev, A. V. Andreev, V.M. Skorkin Institute for Nuclear Research of the RAS, Russia THE PROJECT OF NEUTRON SOURCES FOR THE NEUTRON
More informationDjoko S. Pudjorahardjo, Widarto, Isman Mulyadi T
Indonesian Journal of Physics and NuclearApplications Volume 3, Number 1, February 2018, p. 15-20 e-issn 2550-0570, FSM UKSWPublication 2549-046X, FSM UKSWPublication Detail Engineering Design of Compact
More informationEPITHERMAL NEUTRON BEAM GENERATOR DESIGN FOR BNCT
22nd International Congress of Mechanical Engineering (COBEM 2013) November 3-7, 2013, Ribeirão Preto, SP, Brazil Copyright c 2013 by ABCM EPITHERMAL NEUTRON BEAM GENERATOR DESIGN FOR BNCT 1 Wagner Leite
More informationSingle Photon Emission Tomography Approach for Online Patient Dose Assessment in Boron Neutron Capture Therapy
Single Photon Emission Tomography Approach for Online Patient Dose Assessment in Boron Neutron Capture Therapy Daniel M Minsky a,b,c*, Alejandro Valda a,b, Andrés J Kreiner a,b,c and Alejandro A Burlon
More informationV. 4. Design and Benchmark Experiment for Cyclotron-based Neutron Source for BNCT
CYRIC Annual Report 2002 V. 4. Design and Benchmark Experiment for Cyclotron-based Neutron Source for BNCT Yonai S., ItogaT., Nakamura T., Baba M., Yashima, H. Yokobori H. *, and Tahara Y. ** Cyclotron
More informationNeutrons. ρ σ. where. Neutrons act like photons in the sense that they are attenuated as. Unlike photons, neutrons interact via the strong interaction
Neutrons Neutrons act like photons in the sense that they are attenuated as I = I 0 e μx where Unlike photons, neutrons interact via the strong interaction μ = The cross sections are much smaller than
More informationDesign of a BSA for Producing Epithermal Neutron for BNCT
Siam Physics Congress 2015 Design of a BSA for Producing Epithermal Neutron for BNCT M Asnal *, T Liamsuwan 2 and T Onjun 1 1 Sirindhorn International Institute of Technology, Thammasat University 2 Nuclear
More informationChapter Introduction
Chapter 1 Introduction Malignancy is a life-threatening condition in which tumor cells are of a highly invasive character and penetrate normal organs and exhibit an obstinate resistance against cancer
More informationA Feasibility Study of the SLOWPOKE-2 Reactor as a Neutron Source for Boron Neutron Cancer Treatment
A Feasibility Study of the SLOWPOKE- Reactor as a Neutron Source for Boron Neutron Cancer Treatment Introduction M.J. McCall, M. Pierre Royal Military College of Canada, Kingston, Ontario, Canada K7K 7B4
More informationNeutron sources from Nuclear Reactors
Sorgenti di neutroni e loro applicazioni in ambito INFN Neutron sources from Nuclear Reactors Alfonso Santagata alfonso.santagata@enea.it ENEA * Via Anguillarese, 301 00123 Rome Italy * Agezia nazionale
More informationTHERMOLUMINESCENT (TL) DOSIMETRY OF SLOW-NEUTRON FIELDS AT RADIOTHERAPY DOSE LEVEL
THERMOLUMINESCENT (TL) DOSIMETRY OF SLOW-NEUTRON FIELDS AT RADIOTHERAPY DOSE LEVEL G. Gambarini Dipartimento di Fisica dell Università, Milano, Italy e-mail grazia.gambarini http://users.unimi.it/~frixy/
More informationBoron Neutron Capture Therapy (BNCT) - Low-Energy Neutron Spectrometer for Neutron Field Characterization - )
Boron Neutron Capture Therapy (BNCT) - Low-Energy Neutron Spectrometer for Neutron Field Characterization - ) Isao MURATA and Tsubasa OBATA Division of Electrical, Electronic and Information Engineering,
More informationOptimization of an accelerator-based epithermal neutron source for neutron capture therapy
Applied Radiation and Isotopes 61 (2004) 1009 1013 Optimization of an accelerator-based epithermal neutron source for neutron capture therapy O.E. Kononov a, *, V.N. Kononov a, M.V. Bokhovko a, V.V. Korobeynikov
More informationNumerical optimisation of the fission-converter and the filter/moderator arrangement for the Boron Neutron Capture Therapy (BNCT)
NUKLEONIKA 2003;48(4):177 185 ORIGINAL PAPER Numerical optimisation of the fission-converter and the filter/moderator arrangement for the Boron Neutron Capture Therapy (BNCT) Grzegorz Tracz, Ludwik Dąbkowski,
More informationProgress in Reactor and Accelerator Based BNCT at Kyoto University Research Reactor Institute
Progress in Reactor and Accelerator Based BNCT at Kyoto University Research Reactor Institute Yoshinori Sakurai 1 Kyoto University Research Reactor Institute Asashiro-nishi 2-1010, Kumatori-cho, Sennan-gun,
More informationBook Review: The Role of Education in the Rational use of Medicines
Article ID: WMC002475 ISSN 2046-1690 Book Review: The Role of Education in the Rational use of Medicines Corresponding Author: Dr. P Ravi Shankar, Professor, Medical Education, Pharmacology, KIST Medical
More informationBaseline Characteristics of Patients Attending the Memory Clinic Serving the South Shore of Boston
Article ID: ISSN 2046-1690 Baseline Characteristics of Patients Attending the www.thealzcenter.org Memory Clinic Serving the South Shore of Boston Corresponding Author: Dr. Anil K Nair, Chief of Neurology,
More informationStudy on Microdosimetry for Boron Neutron Capture Therapy
Progress in NUCLEAR SCIENCE and TECHNOLOGY, Vol. 2, pp.242-246 (2011) ARTICLE Study on Microdosimetry for Boron Neutron Capture Therapy Tetsuya MUKAWA 1,*, Tetsuo MATSUMOTO 1 and Koji NIITA 2 1 Tokyo City
More informationNeutron Interactions Part 2. Neutron shielding. Neutron shielding. George Starkschall, Ph.D. Department of Radiation Physics
Neutron Interactions Part 2 George Starkschall, Ph.D. Department of Radiation Physics Neutron shielding Fast neutrons Slow down rapidly by scatter in hydrogenous materials, e.g., polyethylene, paraffin,
More informationThe Viability Of Human Embryos After Transport In A Dry Shipper Between Assisted Conception Laboratories
Article ID: WMC001104 2046-1690 The Viability Of Human Embryos After Transport In A Dry Shipper Between Assisted Conception Laboratories Corresponding Author: Ms. Clare Pinkus, Scientist, Hollywood Fertility
More informationSupracondylar Process Congenitalis Of The Femur
Article ID: WMC00544 ISSN 2046-1690 Supracondylar Process Congenitalis Of The Femur Author(s):Dr. S S Suresh Corresponding Author: Dr. S S Suresh, Head of Department, IBRI Regional Referral Hospital, Department
More informationDumbbell Ganglion Of The Foot: Case Report
Article ID: WMC001079 2046-1690 ISSN Dumbbell Ganglion Of The Foot: Case Report Author(s):Dr. S S Suresh, Dr. Hosam Zaki, Dr. Joyce Jose Corresponding Author: Dr. S S Suresh, Head of Department, Ibri Regional
More informationMore HIV Infection Among Housewvies Than Sex Workers In Malaysia
Article ID: WMC001557 ISSN 2046-1690 More HIV Infection Among Housewvies Than Sex Workers In Malaysia Corresponding Author: Mr. Mohamed Najimudeen, Associate Professor, Obstetrics and Gynaecology, Melaka
More informationEpithermal neutron beams from the 7 Li(p,n) reaction near the threshold for neutron capture therapy
IL NUOVO CIMENTO 38 C (2015) 179 DOI 10.1393/ncc/i2015-15179-9 Colloquia: UCANS-V Epithermal neutron beams from the 7 Li(p,n) reaction near the threshold for neutron capture therapy I. Porras( 1 ),J.Praena(
More informationVariation of Superficial Palmar Arch: A Case Report
Article ID: WMC003387 ISSN 2046-1690 Variation of Superficial Palmar Arch: A Case Report Corresponding Author: Dr. Liju S Mathew, Demonstrator, Anatomy, Gulf Medical University, 4184 - United Arab Emirates
More informationA Case of Incisiform Supernumerary Tooth Along With a Impacted Supplemental Tooth In Anterior Maxillary Region
Article ID: WMC004147 ISSN 2046-1690 A Case of Incisiform Supernumerary Tooth Along With a Impacted Supplemental Tooth In Anterior Maxillary Region Corresponding Author: Dr. Keshav K Gautam, Service Senior
More informationSignet-Ring Cell Change in Benign Prostatic Hyperplasia - A Rare Case Report
Article ID: WMC00688 ISSN 2046-1690 Signet-Ring Cell Change in Benign Prostatic Hyperplasia - A Rare Case Report Author(s):Dr. Pallavi Bhuyan, Dr. Smita Mahapatra, Dr. Sujata Pujari, Dr. Jayasree Rath
More informationDesign and Performance Of A Thermal Neutron Beam for Boron Neutron Capture Therapy At The University Of Missouri Research Reactor
Design and Performance Of A Thermal Neutron Beam for Boron Neutron Capture Therapy At The University Of Missouri Research Reactor J.D. Brockman J.C. McKibben In situ activation reaction, 10 B(n, a) 7 Li;
More informationOption D: Medicinal Chemistry
Option D: Medicinal Chemistry Basics - unstable radioactive nuclei emit radiation in the form of smaller particles alpha, beta, positron, proton, neutron, & gamma are all used in nuclear medicine unstable
More informationRadiation Detection and Measurement
Radiation Detection and Measurement Range of charged particles (e.g.,!: µm; ": mm) Range of high energy photons (cm) Two main types of interactions of high energy photons Compton scatter Photoelectric
More informationEthics in Prehospital Emergency Medicine: An Ethical Dilemma in Patient Communication
Article ID: WMC004247 ISSN 2046-1690 Ethics in Prehospital Emergency Medicine: An Ethical Dilemma in Patient Communication Corresponding Author: Prof. Halvor Nordby, The University of Oslo, Faculty of
More informationNeutron - a tool in the cancer treatment - C. Paunoiu
Neutron - a tool in the cancer treatment - C. Paunoiu 146 5/17/2009 The neutron -a a tool in the cancer treatment Dr.Constantin PĂUNOIU, constantin.paunoiu@nuclear.ro http://www.nuclear.ro biological material
More informationDevelopment of LINAC-Based Neutron Source for Boron Neutron Capture Therapy in University of Tsukuba )
Development of LINAC-Based Neutron Source for Boron Neutron Capture Therapy in University of Tsukuba ) Hiroaki KUMADA, Fujio NAITO 1), Kazuo HASEGAWA 2), Hitoshi KOBAYASHI 1), Toshikazu KURIHARA 1), Kenta
More informationReal Time Spectrometer for thermal neutrons from Radiotherapic Accelerators
Real Time Spectrometer for thermal neutrons from Radiotherapic Accelerators Aldo Mozzanica, Università degli Studi di Brescia, INFN sezione di Pavia mozzanica@bs.infn.it 2 Outlines The Boron Neutron Capture
More informationDistribution of Water Phantom BNCT Kartini Research Reactor Based Using PHITS
Indonesian Journal of Physics and Nuclear Applications Volume 3, Number 2, June 2018, p. 43-48 e-issn 2550-0570, FSM UKSW Publication Distribution of Water Phantom BNCT Kartini Research Reactor Based Using
More informationCharacterization and implementation of Pencil Beam Scanning proton therapy techniques: from spot scanning to continuous scanning
Characterization and implementation of Pencil Beam Scanning proton therapy techniques: from spot scanning to continuous scanning Supervisors Prof. V. Patera PhD R. Van Roermund Candidate Annalisa Patriarca
More informationCorresponding Author: Dr. Simon B Thompson, Associate Professor, Psychology Research Centre, Bournemouth University, BH12 5BB - United Kingdom
Article ID: 2046-1690 Thompson Digital Switch: Helping Stroke Patients to Help Themselves by Promoting Proprioception During Therapy. Brief Report and Podcast as a Teaching Aid for Professionals Corresponding
More informationInfiltrative Brain Mass Due To Progressive Alzheimer's Disease
Article ID: WMC00505 2046-1690 Infiltrative Brain Mass Due To Progressive Alzheimer's Disease Corresponding Author: Dr. Mark Lyons, Associate Professor, Mayo Clinic Arizona, 85054 - United States of America
More informationMammography. Background and Perspective. Mammography Evolution. Background and Perspective. T.R. Nelson, Ph.D. x41433
- 2015 Background and Perspective 2005 (in US) Women Men Mammography Invasive Breast Cancer Diagnosed 211,240 1,690 Noninvasive Breast Cancer Diagnosed 58,940 Deaths from Breast Cancer 40,410 460 T.R.
More informationInfluence of Radiation Damage obtained under Fast Charged Particle Irradiation on Plasma-Facing Erosion of Fusion Structural Materials
Russian Research Center Kurchatov Institute Influence of Radiation Damage obtained under Fast Charged Particle Irradiation on Plasma-Facing Erosion of Fusion Structural Materials A.I. Ryazanov, V.S. Koidan,
More informationRisk Factors Predicting Mortality in Spinal Cord Injury in Nigeria
Article ID: WMC00807 ISSN 2046690 Risk Factors Predicting Mortality in Spinal Cord Injury in Nigeria Corresponding Author: Dr. Ahidjo Kawu, Consultant Surgeon, Dept of Orthopaedics, UATH, Gwagwalada Abuja
More informationInvestigating a cyclotron HM-30 based neutron source for BNCT of deep-seated tumors by using shifting method
Journal of Physics: Conference Series PAPER OPEN ACCESS Investigating a cyclotron HM-30 based neutron source for BNCT of deep-seated tumors by using shifting method To cite this article: Suharyana et al
More informationLA-UR- Title: Author(s): Submitted to: Approved for public release; distribution is unlimited.
LA-UR- Approved for public release; distribution is unlimited. Title: Author(s): Submitted to: Los Alamos National Laboratory, an affirmative action/equal opportunity employer, is operated by the University
More informationSIMULATION RESPONSE OF RESISTIVE PLATE CHAMBER FOR FAST NEUTRONS USING GEANT4 MC CODE
SIMULATION RESPONSE OF RESISTIVE PLATE CHAMBER FOR FAST NEUTRONS USING GEANT4 MC CODE M. JAMIL 1,2, J.T. RHEE 1*, H. Y. JO 1, FARZANA AHMAD 3, Y. J. JEON 3* 1 Institute for Advanced Physics, Deptt. of
More informationMCP PMT with high time response and linear output current for neutron time-of-flight detectors
Journal of Physics: Conference Series PAPER OPEN ACCESS MCP PMT with high time response and linear output current for neutron time-of-flight detectors To cite this article: A S Dolotov et al 216 J. Phys.:
More informationPhD értekezés tézisei PHASE I CLINICAL STUDY ON BORON NEUTRON CAPTURE THERAPY. Dr Katalin Hideghéty. A Doktori Iskola vezetıje Prof. Dr.
PhD értekezés tézisei PHASE I CLINICAL STUDY ON BORON NEUTRON CAPTURE THERAPY Dr Katalin Hideghéty A Doktori Iskola vezetıje Prof. Dr. Nagy Judit témavezetı Prof. Dr. Ember István Pécsi Tudományegyetem
More informationRadiotherapy. Marta Anguiano Millán. Departamento de Física Atómica, Molecular y Nuclear Facultad de Ciencias. Universidad de Granada
Departamento de Física Atómica, Molecular y Nuclear Facultad de Ciencias. Universidad de Granada Overview Introduction Overview Introduction Brachytherapy Radioisotopes in contact with the tumor Overview
More informationAUTHOR QUERIES - TO BE ANSWERED BY THE CORRESPONDING AUTHOR
Journal: Article id: Article title: First Author: Corr. Author: RADIATION PROTECTION DOSIMETRY ncm181 DOSE DISTRIBUTIONS IN PHANTOMS IRRADIATED IN THERMAL COLUMNS OF TWO DIFFERENT NUCLEAR REACTORS G. Gambarini
More informationThe ANDANTE project: a multidisciplinary approach to neutron RBE
The ANDANTE project: a multidisciplinary approach to neutron RBE Andrea Ottolenghi, Klaus Trott, Giorgio Baiocco, Vere Smyth Università degli Studi di Pavia, Italy On behalf of the ANDANTE project MELODI
More informationStudy of neutron-dna interaction at the IPEN BNCT Research facility ABSTRACT
Study of neutron-dna interaction at the IPEN BNCT Research facility Maritza Rodriguez Gual 1, Oscar Rodriguez Hoyos 1, Fernando Guzman Martinez 1, Airton Deppman 2, J.D.T.Aruda Neto 2, V.P.Likhachev 2,
More informationNeutron Detection Spring 2002
Neutron Detection 22.104 Spring 2002 Neutrons vs. X-rays Ideal Large Detector Pulse Height Neutron Interactions Total Cross section for Moderators Neutron Slowing Down Neutron Histories in Moderated Detector
More informationTitle. Author(s)Ishikawa, Masayori; Tanaka, Kenichi; Endo, Satrou; H. CitationJournal of Radiation Research, 56(2): Issue Date
Title Application of an ultraminiature thermal neutron mon therapy Author(s)Ishikawa, Masayori; Tanaka, Kenichi; Endo, Satrou; H CitationJournal of Radiation Research, 56(2): 391-396 Issue Date 2015-03
More informationDosimetric characterization with 62 MeV protons of a silicon segmented detector for 2D dose verifications in radiotherapy
Dosimetric characterization with 62 MeV protons of a silicon segmented detector for 2D dose verifications in radiotherapy C. Talamonti a*, M. Bucciolini a, L. Marrazzo a, D. Menichelli a. a) Department
More informationRPI DOSIMETRY. Therefore the description of the work is grouped in two main areas:
RPI DOSIMETRY Introduction The main objective of the RPI Dosimetry is the characterization of the radiation field of the facilities available in the reactor. Most of the use of the reactor centers in irradiation
More informationArticle ID: WMC00791 ISSN
Article ID: WMC00791 ISSN 2046-1690 Shoe-smell Application as a First-aid Interventional Measure in Controlling Epileptic Attacks in an Urban Population in India: A Fortuitous Empirical Finding Author(s):Dr.
More informationMedical Use of Radioisotopes
Medical Use of Radioisotopes Therapy Radioisotopes prove to be useful in the application of brachytherapy, the procedure for using temporary irradiation close to the area of disease (i.e. cancer) 10% Medical
More informationBipartite Patella: Two Cases Reports
Article ID: WMC003501 ISSN 2046-1690 Bipartite Patella: Two Cases Reports Corresponding Author: Dr. Fadwa Chami, Doctor, Hopital Denfants de Rabat - Morocco Submitting Author: Dr. Fadwa Chami, Doctor,
More informationRadical Prostatectomy Does Not Increase the Risk of Inguinal Hernia
Article ID: WMC003763 ISSN 2046-1690 Radical Prostatectomy Does Not Increase the Risk of Inguinal Hernia Corresponding Author: Dr. Dan Spernat, Senior Lecturer University of Adelaide Urological Surgeon,
More information7. Radioisotopes in Medicine
7. Radioisotopes in Medicine Radionuclides were first used for therapeutic purposes almost 100 years following the observation by Pierre Curie that radium sources brought into contact with the skin produced
More informationRADIATION PROTECTION IN DIAGNOSTIC AND INTERVENTIONAL RADIOLOGY. L19: Optimization of Protection in Mammography
IAEA Training Material on Radiation Protection in Diagnostic and Interventional Radiology RADIATION PROTECTION IN DIAGNOSTIC AND INTERVENTIONAL RADIOLOGY L19: Optimization of Protection in Mammography
More informationNPTEL NPTEL ONLINE COURSE. NPTEL Online Certification Course (NOC) NPTEL. Theory and Practice of Non Destructive Testing
NPTEL NPTEL ONLINE COURSE NPTEL Online Certification Course (NOC) NPTEL Theory and Practice of Non Destructive Testing Dr. Ranjit Bauri Dept. of Metallurgical & Materials Engineering IIT Madras, Chennai
More informationSimulation of the BNCT of Brain Tumors Using MCNP Code: Beam Designing and Dose Evaluation
Iranian Journal of Medical Physics Vol. 9, No. 3, Summer 2012, 183-192 Received: March 06, 2012; Accepted: July 09, 2012 Original Article Simulation of the BNCT of Brain Tumors Using MCNP Code: Beam Designing
More informationIPPE Iron shell transmission experiment with 14 MeV neutron source and its analysis by the Monte-Carlo method
IPPE Iron shell transmission experiment with 14 MeV neutron source and its analysis by the Monte-Carlo method S.P. Simakov 1,2, M.G. Kobozev 1, A.A. Lychagin 1, V.A. Talalaev 1, U. Fischer 2, U. von Möllendorff
More informationCalculation methods in Hermes Medical Solutions dosimetry software
Calculation methods in Hermes Medical Solutions dosimetry software Helena McMeekin MSc. Clinical Applications Scientist, Hermes Medical Solutions MRTDosimetry Scientific Workshop The Principals and Clinical
More informationRadiation Dosimetry at the BNL High Flux Beam Reactor and Medical Research Reactor
BNL-66807 1 1 1 1 2 Holden, N.E., Hu, J-P., Greenberg, D.D., Reciniello, R.N., Farrell, K. and Greenwood, L.R. Radiation Dosimetry at the BNL High Flux Beam Reactor and Medical Research Reactor Reference:Holden,N.E.,
More informationThermal and Fast Neutron Detection with two CLYC Scintillators
4 th International Conference on nuclear reaction mechanism June, 5-9 th, 5 Varenna (LC), Italy Thermal and Fast Neutron Detection with two CLYC Scintillators Agnese Giaz INFN Sezione di Milano IFJ PAN
More informationStatistical Methods for Modeling HIV/AIDS in India
Article ID: WMC003336 ISSN 2046-1690 Statistical Methods for Modeling HIV/AIDS in India Corresponding Author: Dr. Brijesh Sathian, Assistant Professor & Managing and Chief Editor NJE, Community Medicine,
More informationInvestigation of heavy trace elements in neoplastic and non-neoplastic human thyroid tissue: A study by proton induced X-ray emissions
Iran. J. Radiat. Res., 2004; (4): 2-26 Investigation of heavy trace elements in neoplastic and non-neoplastic human thyroid tissue: A study by proton induced X-ray emissions J. alimi, K. Moosavi 2,. Vatankhah
More informationIndonesian Journal of Physics and Nuclear Applications Volume 2, Number 2, June 2017, p ISSN X, FSM UKSW Publication
Indonesian Journal of Physics and Nuclear Applications Volume 2, Number 2, June 2017, p. 83-90 ISSN 2549-046X, FSM UKSW Publication A Conceptual Design Optimization of Collimator With 181 Ta As Neutron
More informationGorham Disease an Enigma
Article ID: WMC002898 ISSN 2046-1690 Gorham Disease an Enigma Corresponding Author: Dr. Prashant Kothari, Asso Professor, ODMR MCDRC, 442301 - India Submitting Author: Dr. Prashant Kothari, Asso Professor,
More informationCOMPARING THE RESPONSES OF TLD 100, TLD 600, TLD 700 AND TLD 400 IN MIXED NEUTRON-GAMMA FIELDS
2015 International Nuclear Atlantic Conference - INAC 2015 São Paulo, SP, Brazil, October 4-9, 2015 ASSOCIAÇÃO BRASILEIRA DE ENERGIA NUCLEAR - ABEN ISBN: 978-85-99141-06-9 COMPARING THE RESPONSES OF TLD
More informationPreliminary study of MAGAT polymer gel dosimetry for boron-neutron capture therapy
Journal of Physics: Conference Series OPEN ACCESS Preliminary study of MAGAT polymer gel dosimetry for boron-neutron capture therapy To cite this article: Shin-ichiro Hayashi et al 2015 J. Phys.: Conf.
More informationIII. Proton-therapytherapy. Rome SB - 5/5 1
Outline Introduction: an historical review I Applications in medical diagnostics Particle accelerators for medicine Applications in conventional radiation therapy II III IV Hadrontherapy, the frontier
More informationOPTION I TEST REVIEW
IB PHYSICS 3 Name: Period: Date: DEVIL PHYSICS BADDEST CLASS ON CAMPUS OPTION I TEST REVIEW s2. This question is about defects of hearing. The graph below shows an audiogram for a person who has not been
More informationDevelopment and characteristics of the HANARO ex-core neutron irradiation facility for applications in the boron neutron capture therapy field
Development and characteristics of the HANARO ex-core neutron irradiation facility for applications in the boron neutron capture therapy field Myong-Seop Kim, Byung-Chul Lee, Sung-Yul Hwang, Heonil Kim
More information[Setawati et. al., Vol.4 (Iss10): October, 2017] ISSN: DOI: /zenodo
EXTERNAL RADIATION SIMULATION OF LINAC TO DETERMINE EFFECTIVE DOSE IN ORGANS USING MONTE CARLO METHOD Evi Setawati *1, Muchammad Azam 1, Ngurah Ayu Ketut Umiati 1, Hammam Oktajianto 1 *1 Physics Department,
More informationThe Role Of Varma Therapy In Cakana Vatam
Article ID: WMC002906 ISSN 2046-1690 The Role Of Varma Therapy In Cakana Vatam Corresponding Author: Dr. Shanmugasundaram Natarajan, Consultant Varmam Therapy, Siddha Regional Research Institute - India
More informationDevelopment of a Thermal Neutron Source based on a Medical Electron Linac
Development of a Thermal Neutron Source based on a Medical Electron Linac Valeria Monti December 15 th, 2016 Second Year Seminar, XXX cycle Outline E_LiBANS project Physics of the thermal photo-neutron
More informationRadiation physics and radiation protection. University of Szeged Department of Nuclear Medicine
Radiation physics and radiation protection University of Szeged Department of Nuclear Medicine Radiation doses to the population 1 Radiation doses to the population 2 Sources of radiation 1 Radiation we
More informationArticle ID: WMC
Article ID: WMC001971 2046-1690 Evaluation of Visual Inspection with Acetic Acid (Via) & Visual Inspection with Lugol's Iodine (Vili) as a Screening Tool for Cervical Intraepithelial Neoplasia in Comparison
More informationCalculation of Dose Distribution Around a Clinical 252. Cf Source for Neutron Therapy Based on AAPM, TG-43 Protocol
Biomedical & Pharmacology Journal Vol. 6(2), 137-143 (2013) Calculation of Dose Distribution Around a Clinical 252 Cf Source for Neutron Therapy Based on AAPM, TG-43 Protocol Ali Yadollahpour 1, Mansour
More informationIAEA Activities in support of Neutron Imaging
IAEA Activities in support of Neutron Imaging Danas Ridikas Department of Nuclear Sciences and Applications International Atomic Energy Agency Vienna International Centre, PO Box 100, 1400 Vienna, Austria
More informationNeutron Measurements for Intensity Modulated Radiation Therapy
SLAC-PUB-8443 April 2 Neutron Measurements for Intensity Modulated Radiation Therapy N. E. Ipe et al. Presented at Chicago 2 World Congress on Medical Physics and Biomedical Engineering, 7/23/2 7/28/2,
More informationThin Beryllium target for 9 Be(d,n)- driven BNCT
Thin Beryllium target for 9 Be(d,n)- driven BNCT M.E.Capoulat 1-3, D.M.Minsky 1-3, L.Gagetti 1-3, M. Suárez Anzorena 1, M.F.del Grosso 1-2, J.Bergueiro 1, D.Cartelli 1-3, M.Baldo 1, W.Castell 1, J.Gomez
More informationApplication of MCNP4C Monte Carlo code in radiation dosimetry in heterogeneous phantom
Iran. J. Radiat. Res., 2003; 1(3): 143-149 Application of MCNP4C Monte Carlo code in radiation dosimetry in heterogeneous phantom A. Mostaar 1, M. Allahverdi 1,2, M. Shahriari 3 1 Medical Physics Department,
More informationBreast Tomosynthesis. What is breast tomosynthesis?
Scan for mobile link. Breast Tomosynthesis Breast tomosynthesis is an advanced form of mammography, a specific type of breast imaging that uses low-dose x-rays to detect cancer early when it is most treatable.
More informationUsing Monte Carlo Method for Evaluation of kvp & mas variation effect on Absorbed Dose in Mammography
Using Monte Carlo Method for Evaluation of kvp & mas variation effect on Absorbed Dose in Mammography Poster No.: C-2078 Congress: ECR 2011 Type: Authors: Keywords: DOI: Scientific Exhibit F. Salmani Rezaei,
More informationBipartite Patella: Two Cases Reports
Article ID: WMC003501 ISSN 2046-1690 Bipartite Patella: Two Cases Reports Corresponding Author: Dr. Fadwa Chami, Doctor, Hopital Denfants de Rabat - Morocco Submitting Author: Dr. Fadwa Chami, Doctor,
More informationRadioactivity. Alpha particles (α) :
Radioactivity It is the property of an element that causes it to emit radiation Discovered by Becquerel (1896) Radiation comes from the nucleus of the atom There are three types of radiation : alpha particles
More informationTopics covered 7/21/2014. Radiation Dosimetry for Proton Therapy
Radiation Dosimetry for Proton Therapy Narayan Sahoo Department of Radiation Physics University of Texas MD Anderson Cancer Center Proton Therapy Center Houston, USA Topics covered Detectors used for to
More informationCHARACTERIZATION OF THE ELECTRON BEAM RADIATION FIELD BY CHEMICAL DOSIMETRY
CHARACTERIZATION OF THE ELECTRON BEAM RADIATION FIELD BY CHEMICAL DOSIMETRY M. R. NEMTANU, C. OPROIU, M. BRASOVEANU, M. OANE National Institute for Laser, Plasma and Radiation Physics, Electron Accelerator
More informationCustom-Made Products / Scientific Research Instruments
Synchrotron Radiation Instruments Double Crystal Monochromator A double crystal monochromator is an instrument that extracts light of a specific wavelength using crystal diffraction. Light of various wavelengths
More informationDose distribution and dosimetry parameters calculation of MED3633 palladium-103 source in water phantom using MCNP
Iran. J. Radiat. Res., 2006; 4 (1): 15-19 Dose distribution and dosimetry parameters calculation of MED3633 palladium- source in water phantom using MCNP A.A. Mowlavi 1*,A. Binesh 2, H. Moslehitabar 3
More informationDesign of Moderator Neutron for Boron Neutron Capture Therapy in Kartini Nuclear Reactor Using Monte Carlo N Particle 5 Simulation
IOP Conference Series: Materials Science and Engineering PAPER OPEN ACCESS Design of Moderator Neutron for Boron Neutron Capture Therapy in Kartini Nuclear Reactor Using Monte Carlo N Particle 5 Simulation
More informationAdult Intussception : A Case Report
Article ID: ISSN 2046-1690 Adult Intussception : A Case Report Author(s):Dr. C Surendranath Singh, Prof. M.l. Prakash Corresponding Author: Dr. C Surendranath Singh, Senior Lecturer, Unit of Radiodiagnosis,
More informationIORT with mobile linacs: the Italian experience
IORT with mobile linacs: the Italian experience G. Tosi, M. Ciocca lntroduction At the beginning of 1999 a mobile Linac (Novac 7, manufactured by Hitesys, Aprilia, Italy) able to produce electron beams
More informationInternational Association of Scientific Innovation and Research (IASIR) (An Association Unifying the Sciences, Engineering, and Applied Research)
International Association of Scientific Innovation and Research (IASIR) (An Association Unifying the Sciences, Engineering, and Applied Research) International Journal of Emerging Technologies in Computational
More informationCorresponding Author: Dr. Simon B Thompson, Associate Professor, Psychology Research Centre, Bournemouth University, BH12 5BB - United Kingdom
Article ID: 2046-1690 Thompson Digital Switch: Helping Stroke Patients to Help Themselves by Promoting Proprioception During Therapy. Brief Report and Podcast as a Teaching Aid for Professionals Corresponding
More information45 Hr PET Registry Review Course
45 HR PET/CT REGISTRY REVIEW COURSE Course Control Document Timothy K. Marshel, MBA, R.T. (R), (N)(CT)(MR)(NCT)(PET)(CNMT) The PET/CT Training Institute, Inc. SNMMI-TS 028600-028632 45hr CEH s Voice Credits
More information