MEASUREMENTS OF NEUTRON ENERGY SPECTRA FROM 7Li(p, n)7Be REACTION WITH BONNER SPHERE SPECTROMETER, NESTED NEUTRON SPECTROMETER AND ROSPEC

被引：3

作者：

Atanackovic, J. ^{[1
]}

Matysiak, W. ^{[2
]}

Witharana, S. ^{[3
]}

Dubeau, J. ^{[3
]}

Waker, A. J. ^{[4
]}

机构：

[1] Atom Energy Canada Ltd, Chalk River Labs, Chalk River, ON K0J 1J0, Canada

[2] Univ Florida, Proton Therapy Inst, Jacksonville, FL 32206 USA

[3] DETEC, Gatineau, PQ J8T 4J1, Canada

[4] Univ Ontario, Inst Technol, Oshawa, ON L1H 7K4, Canada

来源：

RADIATION PROTECTION DOSIMETRY | 2014年 / 161卷 / 1-4期

关键词：

DOSIMETRY; YIELDS;

D O I：

10.1093/rpd/nct314

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Neutron spectrometry measurements were carried out at the McMaster Accelerator Laboratory (MAL), which is equipped with a 3-MV Van de Graaff-type accelerator. Protons were accelerated onto a thick natural lithium target inducing the Li-7(p, n)Be-7 threshold reaction. Depending on the proton energy, slightly different poly-energetic neutron fields were produced. Neutron spectra were measured at two incident proton energies: 2.15 and 2.24 MeV, which produced poly-energetic neutrons with maximum kinetic energies of 401 and 511 keV, respectively. Measurements were performed at a distance of 1.5 m from the target in the forward direction with three different instruments: Bonner sphere spectrometer, Nested Neutron Spectrometer and ROtational proton recoil SPECtrometer.

引用

页码：221 / 224

页数：4

共 16 条

[1]

[Anonymous], 1996, ICRP PUBL, V74

[2] In vivo assessment of magnesium status in human body using accelerator-based neutron activation measurement of hands:: A pilot study [J].

Aslam ;

Pejovic-Milic, A. ;

McNeill, F. E. ;

Byun, S. H. ;

Prestwich, W. V. ;

Chettle, D. R. .

MEDICAL PHYSICS, 2008, 35 (02) :608-616

[3]

Aslam, 2008, PHYS MED BIOL, V53, P4081, DOI [10.1088/0031-9155/53/15/005, 10.1088/0031-9155/53/19/N02]

[4] Neutron spectrometry and dosimetry study at two research nuclear reactors using Bonner sphere spectrometer (BSS), rotational spectrometer (ROSPEC) and cylindrical nested neutron spectrometer (NNS) [J].

Atanackovic, J. ;

Matysiak, W. ;

Witharana, S. S. Hakmana ;

Aslam, I. ;

Dubeau, J. ;

Waker, A. J. .

RADIATION PROTECTION DOSIMETRY, 2013, 154 (03) :364-374

[5]

Benjamin P., 1968, 0968 AWRE

[6] A NEW TYPE OF NEUTRON SPECTROMETER [J].

BRAMBLETT, RL ;

EWING, RI ;

BONNER, TW .

NUCLEAR INSTRUMENTS & METHODS, 1960, 9 (01) :1-12

[7] KERMA FACTORS FOR NEUTRON ENERGIES BELOW 30-MEV [J].

CASWELL, RS ;

COYNE, JJ ;

RANDOLPH, ML .

RADIATION RESEARCH, 1980, 83 (02) :217-254

[8] In vivo measurement of bone aluminum in population living in southern Ontario, Canada [J].

Davis, K. ;

Aslam ;

Pejovic-Milic, A. ;

Chettle, D. R. .

MEDICAL PHYSICS, 2008, 35 (11) :5115-5123

[9] A neutron spectrometer using nested moderators [J].

Dubeau, J. ;

Witharana, S. S. Hakmana ;

Atanackovic, J. ;

Yonkeu, A. ;

Archambault, J. P. .

RADIATION PROTECTION DOSIMETRY, 2012, 150 (02) :217-222

[10] Thick target neutron yields for the 7Li(p,n)7Be reaction near threshold [J].

Lee, CL ;

Zhou, XL .

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS, 1999, 152 (01) :1-11

← 1 2 →