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Добірка наукової літератури з теми "Beam shaping assembly"

Автор: Grafiati
Опубліковано: 10 грудня 2022
Оновлено: 28 січня 2023

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Статті в журналах з теми "Beam shaping assembly"

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Bilalodin, Bilalodin, Aris Haryadi, Kartika Sari, and Wihantoro Wihantoro. "OPTIMIZATION AND VERIFICATION OF DOUBLE LAYER BEAM SHAPING ASSEMBLY (DLBSA) FOR EPITHERMAL NEUTRON GENERATION." Jurnal Teknologi 84, no. 4 (May 30, 2022): 103–12. http://dx.doi.org/10.11113/jurnalteknologi.v84.18047.

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The designs of Beam Shaping Assembly (BSA) for moderating fast neutron into epithermal neutron have been conducted. Some BSA models that are previously developed are still having problems in generating epithermal neutron. Instead, we propose designs of double layer beam shaping assembly (DLBSA) to produce epithermal neutron. Optimization of the Double Layer Beam Shaping Assembly (DLBSA) design was carried out using the genetic algorithm (AG) method using MCNPX and verified using the Particle and Heavy Ion Transport code System (PHITS). The optimization resulted in four configurations up to the 21st generation capable of producing epithermal neutron beams that comply with the IAEA standards. The best four configurations are obtained by combining: (1) Al with one of the CaF2, BiF3 or PbF2 materials as moderator, (2) Pb with Pb, Ni, or Bi as a reflector, (3) Ni with FeC, or C as collimator, (4) (FeC + LiF) as fast neutron filter, Cd or B4C as thermal neutron filter. Verification of the four optimum configurations of the DLBSA model using PHITS code shows that the epithermal neutron beam produced by DLBSA has met the IAEA standards.
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2

Suparta, Gede Bayu, Arief Hermanto, Dwi Satya Palupi, and Yohannes Sardjono. "Optimization of double layered beam shaping assembly using genetic algorithm." Polish Journal of Medical Physics and Engineering 24, no. 4 (December 1, 2018): 157–64. http://dx.doi.org/10.2478/pjmpe-2018-0022.

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Abstract The genetic algorithm method is a new method used to obtain radiation beams that meet the IAEA requirements. This method is used in optimization of configurations and compositions of materials that compose double layered Beam Shaping Assembly (BSA). The double layered BSA is modeled as having two layers of material for each of the components, which are the moderator, reflector, collimator, and filter. Up to 21st generation, the optimization results in four (4) individuals having the capacity to generate the most optimum radiation beams. The best configuration, producing the most optimum radiation beams, is attained by using combinations of materials, that is by combining Al with either one of CaF2 and PbF2for moderator; combining Pb material with either Ni or Pb for reflector; combining Ni and either FeC or C for collimator, and FeC+LiF and Cd for fast and thermal neutron filter. The parameters of radiation resulted from the four configurations of double layer BSA adequately satisfy the standard of the IAEA.
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3

Zaidi, L., E. A. Kashaeva, S. I. Lezhnin, G. N. Malyshkin, S. I. Samarin, T. V. Sycheva, S. Yu Taskaev, and S. A. Frolov. "Neutron-beam-shaping assembly for boron neutron-capture therapy." Physics of Atomic Nuclei 80, no. 1 (January 2017): 60–66. http://dx.doi.org/10.1134/s106377881701015x.

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4

Burlon, A. A., A. J. Kreiner, A. A. Valda, and D. M. Minsky. "An optimized neutron-beam shaping assembly for accelerator-based BNCT." Applied Radiation and Isotopes 61, no. 5 (November 2004): 811–15. http://dx.doi.org/10.1016/j.apradiso.2004.05.063.

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5

Bilalodin, Bilalodin, Gede Bayu Suparta, Arief Hermanto, Dwi Satya Palupi, and Yohannes Sardjono. "Characteristics in Water Phantom of Epithermal Neutron Beam Produced by Double Layer Beam Shaping Assembly." ASEAN Journal on Science and Technology for Development 36, no. 1 (April 27, 2019): 9–12. http://dx.doi.org/10.29037/ajstd.519.

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A Double Layer Beam Shaping Assembly (DLBSA) was designed to produce epithermal neutrons for BNCT purposes. The Monte Carlo N-Particle eXtended program was used as the software to design the DLBSA and phantom. Distribution of epithermal neutron and gamma flux in the DLBSA and phantom and absorbed dose in the phantom were computed using the Particle and Heavy Ion Transport code System program. Testing results of epithermal neutron beam irradiation of the water phantom showed that epithermal neutrons were thermalized and penetrated the phantom up to a depth of 12 cm. The maximum value of the absorbed dose was 2 × 10-3 Gy at a depth of 2 cm in the phantom.
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6

Minsky, D. M., and A. J. Kreiner. "Beam shaping assembly optimization for 7Li(p,n)7Be accelerator based BNCT." Applied Radiation and Isotopes 88 (June 2014): 233–37. http://dx.doi.org/10.1016/j.apradiso.2013.11.088.

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7

Bilalodin, A. Haryadi, Kartika Sari, Y. Sardjono, and RasitoTursinah. "Design development of double-layer beam shaping assembly using extension nozzle to increase the quality of epithermal neutron beam as a boron neutron capture therapy neutron source." Nuclear Physics and Atomic Energy 22, no. 4 (December 25, 2021): 415–21. http://dx.doi.org/10.15407/jnpae2021.04.415.

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Анотація:
Double layer beam shaping assembly (DLBSA) is a system that moderates fast neutrons into epithermal neutrons. The epithermal neutrons that leave the aperture in the DLBSA system are broadened in the space, thereby reducing the intensity and homogeneity of the epithermal neutron beams. Therefore, it is necessary to improve the design. The development of the DLBSA design was carried out using an extension nozzle. The nozzles are designed using materials made in three configurations, namely Ni+LiF load polyethylene, Pb+LiF load polyethylene, and Bi+LiF load polyethylene. The simulation results show that the addition of a nozzle at the tip of the DLBSA can channel the beam more directionally with high intensity. The addition of nozzles with Ni+LiF load PE material produces an epithermal neutron beam that meets the IAEA standards.
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Odin, Bilal, Gede Bayu Suparta, Arief Hermanto, Dwi Satya Palupi, Yohannes Sardjono, and Rasito A. "Characteristics of Thermal Neutron Flux Distribution in a Phantom Irradiated by Epithermal Neutron Beam from Double Layer Beam Shaping Assembly (DBSA)." Pakistan Journal of Scientific & Industrial Research Series A: Physical Sciences 62, no. 3 (November 28, 2019): 167–73. http://dx.doi.org/10.52763/pjsir.phys.sci.62.3.2019.167.173.

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A simulation study on the Double-layer Beam Shaping Assembly (DBSA) system has been carried out. This study used fast neutron beam resulting from reactions of 30 MeV protons with beryllium target. The MCNPX code was utilized to design the DBSA and the phantom as well as to calculate neutron flux on the phantom. The distribution of epithermal neutron flux and gamma in the DBSA and phantom were computed using the PHITS code. The spectrum of radiation beams generated by the DBSA shows the characteristics that the typical epithermal neutron flux of 1.0 x109 n/(cm2.s), the ratio of epithermal to the thermal and fast neutron flux of 344 and 85, respectively and the ratio of gamma dose to the epithermal neutron flux of 1.82 x 10-13 Gy.cm2. The test of epithermal neutron beams irradiation on the water phantom shows that epithermal neutrons are thermalized and penetrate the phantom up to 12 cm in depth. The maximum value of neutron flux is 1.1 x 109 n/(cm2.s) at a depth of 2 cm in phantom.
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9

Minsky, D. M., A. J. Kreiner, and A. A. Valda. "AB-BNCT beam shaping assembly based on 7Li(p,n)7Be reaction optimization." Applied Radiation and Isotopes 69, no. 12 (December 2011): 1668–71. http://dx.doi.org/10.1016/j.apradiso.2011.02.047.

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10

Herrera, M. S., S. J. González, A. A. Burlon, D. M. Minsky, and A. J. Kreiner. "Treatment planning capability assessment of a beam shaping assembly for accelerator-based BNCT." Applied Radiation and Isotopes 69, no. 12 (December 2011): 1870–73. http://dx.doi.org/10.1016/j.apradiso.2011.03.029.

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Дисертації з теми "Beam shaping assembly"

1

LEE, PEI-YI, and 李珮儀. "The beam shaping assembly design of an accelerator-driven Li-target epithermal neutron beam." Thesis, 2013. http://ndltd.ncl.edu.tw/handle/72118121335504077084.

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2

Hsieh, Ming Hao, and 謝明豪. "The Improved Beam Shaping Assembly Design for The Accelerator-Based Epithermal Neutron Beam for Boron Neutron Capture Therapy and the Establishment of Equivalent Surface Source at the Beam Exit." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/ebjftx.

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Частини книг з теми "Beam shaping assembly"

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"History." In The Burley Manuscript, edited by Peter Redford. Manchester University Press, 2016. http://dx.doi.org/10.7228/manchester/9781526104489.003.0002.

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The collection was assembled by William Parkhurst in the first decades of the seventeenth century, and later passed into the hands of the Finch family, at whose seat of Burley-on-the-Hill it was examined in the nineteenth century by Alfred J Horwood of the Historical Manuscripts Commission, and in the early twentieth by the scholar Logan Pearsall Smith, who caused transcripts to be made of some of the material. These were used by later scholars, the manuscript itself being believed to have been destroyed by fire. The circumstances of this fire, and of the manuscript’s mysterious survival and subsequent discovery by I A Shapiro are described, as are its disappearance once again and rediscovery by Peter Beal. The survival was still not widely publicised and, until now, no detailed study of the Burley manuscript has been published.
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Тези доповідей конференцій з теми "Beam shaping assembly"

1

Canfield, Brian K., Alexander Terekhov, Lino Costa, and Lloyd M. Davis. "Implementation of a turret-mounted optical assembly for femtosecond laser Bessel-beam shaping for machining applications." In Laser Beam Shaping XIX, edited by Angela Dudley and Alexander V. Laskin. SPIE, 2019. http://dx.doi.org/10.1117/12.2529420.

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2

Haag, Sebastian, Volker Sinhoff, Tobias Müller, and Christian Brecher. "Engineering of automated assembly of beam-shaping optics." In SPIE LASE, edited by Alexis V. Kudryashov, Alan H. Paxton, Vladimir S. Ilchenko, Lutz Aschke, and Kunihiko Washio. SPIE, 2014. http://dx.doi.org/10.1117/12.2040522.

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3

Haag, Sebastian, Olaf Rübenach, Andreas Beleke, Tobias Haverkamp, Tobias Müller, Daniel Zontar, Christian Wenzel, and Christian Brecher. "Flexible assembly module for beam-shaping product families based on support structures." In SPIE LASE, edited by Alexis V. Kudryashov, Alan H. Paxton, and Vladimir S. Ilchenko. SPIE, 2016. http://dx.doi.org/10.1117/12.2214057.

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4

Uritani, Akira, Yosuke Menjo, Kenichi Watanabe, Atsushi Yamazaki, Yoshiaki Kiyanagi, and Kazuki Tsuchida. "Design of Beam Shaping Assembly for an Accelerator-driven BNCT System in Nagoya University." In Proceedings of the International Conference on Neutron Optics (NOP2017). Journal of the Physical Society of Japan, 2018. http://dx.doi.org/10.7566/jpscp.22.011002.

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5

Burlon, Alejandro A., Santiago Girola, Alejandro A. Valda, Daniel M. Minsky, Andrés J. Kreiner, Ricardo Alarcon, Phil Cole, Andres J. Kreiner, and Hugo F. Arellano. "Experimental and Simulated Characterization of a Beam Shaping Assembly for Accelerator- Based Boron Neutron Capture Therapy (AB-BNCT)." In VIII LATIN AMERICAN SYMPOSIUM ON NUCLEAR PHYSICS AND APPLICATIONS. AIP, 2010. http://dx.doi.org/10.1063/1.3480217.

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Sato, Kazuya, Akira Uritani, Kenichi Watanabe, Sachiko Yoshihashi, Atsushi Yamazaki, Yoshiaki Kiyanagi, and Kazuki Tsuchida. "Improved Design of the Exit of a Beam Shaping Assembly for an Accelerator-driven BNCT System in Nagoya University." In Proceedings of the International Conference on Neutron Optics (NOP2017). Journal of the Physical Society of Japan, 2018. http://dx.doi.org/10.7566/jpscp.22.011003.

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7

Burlon, A., A. J. Kreiner, A. A. Valda, D. M. Minsky, and H. Somacal. "Design and construction of an optimized neutron beam shaping assembly for Boron Neutron Capture Therapy at the Tandar accelerator." In VI LATIN AMERICAN SYMPOSIUM ON NUCLEAR PHYSICS AND APPLICATIONS. AIP, 2007. http://dx.doi.org/10.1063/1.2710630.

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Звіти організацій з теми "Beam shaping assembly"

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J. Vujic, E. Greenspan, W.E. Kastenber, Y. Karni, D. Regev, K. N. Leung J.M. Verbeke, D. Chivers, et al. Optimal Neutron Source & Beam Shaping Assembly for Boron Neutron Capture Therapy. Office of Scientific and Technical Information (OSTI), April 2003. http://dx.doi.org/10.2172/810841.

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