Neutron spectra measurement and comparison of the HFR and THOR BNCT beams

被引：19

作者：

Liu, Yuan-Hao ^{[1
]}

Nievaart, Sander

Tsai, Pi-En ^{[1
]}

Liu, Hong-Ming ^{[2
]}

Moss, Ray

Jiang, Shiang-Huei ^{[1
]}

机构：

[1] Natl Tsing Hua Univ, Engn & Syst Sci Dept, Hsinchu, Taiwan

[2] Natl Tsing Hua Univ, Nucl Sci & Technol Dev Ctr, Hsinchu, Taiwan

来源：

APPLIED RADIATION AND ISOTOPES | 2009年 / 67卷 / 7-8期

关键词：

BNCT; Spectrum adjustment; Coarse-scaling; SAND-II; ADJUSTMENT;

D O I：

10.1016/j.apradiso.2009.03.088

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

This paper aims to measure the spectra of HBII (high flux reactor, HFR) and the Tsing Hua open-pool reactor (THOR) boron neutron capture therapy (BNCT) beams by multiple activation foils. The self-shielding corrections were made with the aid of MCNP calculations. The initial spectra were adjusted by a sophisticated process named coarse-scaling adjustment using SAND-EX, which can adjust a given coarse-group spectrum into a fine-group structure, i.e. 640 groups, with excellent continuity. The epithermal neutron flux of the THOR beam is about three times of HB11 The thermal neutron flux, boron and gold reaction rates along the central axis of a PMMA phantom are calculated for both adjusted spectra for comparison. (C) 2009 Elsevier Ltd. All rights reserved.

引用

页码：S137 / S140

页数：4

共 7 条

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[2]

Berg S, 1967, Technical Report

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BRIESMEISTER J. F., 2000, MCNP GEN MONTE CARLO

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[5]

*IAEA, CURR STAT NEUTR CAPT

[6] Monte Carlo determined self-shielded groupwise cross-sections for the activation foil stack applied in the epithermal neutron spectrum adjustment [J].

Liu, Yuan-Hao ;

Nievaart, Sander ;

Liu, Hong-Ming ;

Moss, Ray ;

Jiang, Shiang-Huei .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2009, 602 (02) :557-563

[7] Coarse-scaling adjustment of fine-group neutron spectra for epithermal neutron beams in BNCT using multiple activation detectors [J].

Liu, Yuan-Hao ;

Nievaart, Sander ;

Tsai, Pi-En ;

Liu, Hong-Ming ;

Moss, Ray ;

Jiang, Shiang-Huei .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT, 2009, 598 (03) :764-773

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