Development of low energy neutron spectrometer for accelerator based neutron source for BNCT

2009 Fiscal Year Final Research Report

• Project/Area Number: 19360429
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Research Field: Nuclear engineering
• Research Institution: Osaka University
• Principal Investigator: MURATA Isao Osaka University, 工学研究科, 准教授 (30273600)
• Co-Investigator(Kenkyū-buntansha): MIYAMARU Hiroyuki 大阪大学, 工学研究科, 助教 (80243187) ; KATO Itsuto 大阪大学, 歯学研究科, 助教 (60314390)
• Project Period (FY): 2007 – 2009
• Keywords: BNCT / 熱外中性子 / 加速器 / スペクトロメータ

Research Abstract

A new low-energy neutron spectrometer for accelerator based neutron source (ABNS) for BNCT has been developed. For BNCT, it is a crucial issue to characterize the neutron field especially for ABNS. However, measurement of epi-thermal neutrons is not straightforward. In this study, using a position sensitive proportional counter as its one edge of the two is an entrance window of neutrons, detection depth distribution is measured. The measured detection depth distribution is converted to the neutron energy spectrum. Prototype detectors were produced to confirm the feasibility to measure the neutron spectrum in energies from thermal to epi-thermal region.

Research Products

• [Journal Article] Effectiveness of Boron Neutron Capture Therapy for Recurrent Head and Neck Malignancies (2009)
  • Author(s): I. Kato, Y. Fujita, A. Maruhashi, H. Kumada, M. Ohmae, M. Kirihata, Y. Imahori, M. Suzuki, Y. Sakurai, T. Sumi, S. Iwai, M. Nakazawa, I. Murata, H. Miyamaru, K. Ono
  • Journal Title: Applied Radiation and Isotopes 67 Pages: 537-542
  • Peer Reviewed
• [Journal Article] A New Low Energy Neutron Spectrometer Based on Position Sensitive Proportional Counter for Accelerator Based Neutron Source (2009)
  • Author(s): I. Murata, H. Miyamaru, I. Kato, S. Yoshida, Y. Mori
  • Journal Title: Nucl.Technol 168 Pages: 373-377
  • Peer Reviewed
• [Journal Article] On Accelerator Based Neutron Sources and Neutron Field Characterization with Low Energy Neutron Spectrometer Based on Position Sensitive ^3He Counter (2009)
  • Author(s): I. Murata, H. Miyamaru, I. Kato, Y. Mori
  • Journal Title: Applied Radiation and Isotopes 67 Pages: 288-291
  • Peer Reviewed
• [Journal Article] Low Energy Neutron Spectrometer Using Position Sensitive Proportional Counter-Feasibility Study Based on Numerical Analysis - (2008)
  • Author(s): I. Murata, H. Miyamaru
  • Journal Title: Nucl.Instrum.Meth. in Phys.Res. A589 Pages: 445-454
  • Peer Reviewed
• [Presentation] Thermal/epi-thermal neutron spectrometer with a ^3He position sensitive proportional counter (2010)
  • Author(s): M.Ito, I.Murata
  • Organizer: P-1, 2010 Annual Symposium on Nucl. Data
  • Place of Presentation: C-CUBE, Chikushi Campus, Kyushu University
  • Year and Date: 20101125-20101126
• [Presentation] Boron Neutron Capture Therapy for Recurrent Head and Neck Cancer (2010)
  • Author(s): I.Kato, Y.Fujita, M.Ohmae, Y.Sakurai, H.Kumada, I.Murata, H.Miyamaru, A. Maruhashi, M. Kirihata, Y. Imahori, M. Suzuki, T. Sumi, S. Iwai, M. Nakazawa, K. Ono
  • Organizer: Proc. Int. Conf. on Neutron Capture Therapy pp.529
  • Place of Presentation: Buenos Aires, Argentina
  • Year and Date: 20101025-20101029
• [Presentation] 位置敏感型比例計数管を用いた低エネルギー中性子スペクトロメータの開発 (2008)
  • Author(s): 村田勲、宮丸広幸、加藤逸郎、森義治
  • Organizer: 日本原子力学会2008年春の年会 C24
  • Place of Presentation: 大阪大学吹田キャンパス
  • Year and Date: 20080326-20080328