Polyethylene moderator optimized for increasing thermal neutron flux in the NASBEE accelerator-based neutron field

被引：5

作者：

Ogawara, Ryo ^{[1
,2
,3
,4
]}

Kusumoto, Tamon ^{[4
,5
]}

Konishi, Teruaki ^{[5
]}

Hamano, Tsuyoshi ^{[1
]}

Kodaira, Satoshi ^{[4
,5
]}

机构：

[1] Natl Inst Quantum & Radiol Sci & Technol, Natl Inst Radiol Sci, Inage Ku, 4-9-1 Anagawa, Chiba 2638555, Japan

[2] Kyoto Univ, Adv Res Ctr Beam Sci, Inst Chem Res, Uji, Kyoto 6110011, Japan

[3] RIKEN, Nishina Ctr Accelerator Based Sci, Wako, Saitama 3510198, Japan

[4] Natl Inst Quantum & Radiol Sci & Technol, Ctr Adv Radiat Emergency Med, Inage Ku, 4-9-1 Anagawa, Chiba 2638555, Japan

[5] Natl Inst Quantum & Radiol Sci & Technol, Inst Quantum Life Sci, Inage Ku, 4-9-1 Anagawa, Chiba 2638555, Japan

来源：

RADIATION MEASUREMENTS | 2020年 / 137卷

关键词：

Accelerator-based neutron field; Thermal neutron; Boron neutron capture therapy; Neutron moderator; CAPTURE THERAPY; DETECTOR;

D O I：

10.1016/j.radmeas.2020.106358

中图分类号：

TL [原子能技术]; O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

Neutron exposure Accelerator System for Biological Effect Experiments (NASBEE) at National Institute of Radiological Sciences, National Institutes for Quantum and Radiological Science and Technology (NIRS-QST) achieved thermal neutron flux of a therapeutic intensity of (1.75 +/- 0.13) x 10(9) cm(-2) s(-1) by optimizing polyethylene (PE) moderator in the beam port. The dose contamination of gamma rays was 2.37 x 10(-12) Gy cm(2) (the absorbed dose of 14.9 Gy h(-1)). The improved thermal neutron field at the NASBEE facility will be useful in the research and development for boron neutron capture therapy (BNCT).

引用

页数：4

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