A facility for measurements of (n,γ) cross-sections of a nucleus in the range 0.008 ≤ En < 20 MeV

被引：2
|
作者：
Segawa, M. [1 ]
Toh, Y. [2 ]
Harada, H. [2 ]
Kitatani, F. [2 ]
Koizumi, M. [2 ]
Hatsukawa, Y. [1 ]
Fukahori, T. [2 ]
Matsue, H. [1 ]
Oshima, M. [2 ]
Tanimura, Y. [3 ]
Tsutsumi, M. [3 ]
Nagai, Y. [2 ,4 ]
机构：
[1] Japan Atom Energy Agcy, Quantum Beam Sci Directorate, Tokai, Ibaraki 3191195, Japan
[2] Japan Atom Energy Agcy, Nucl Sci & Engn Directorate, Tokai, Ibaraki 3191195, Japan
[3] Japan Atom Energy Agcy, Dept Radiat Protect, Tokai, Ibaraki 3191195, Japan
[4] Osaka Univ, Nucl Phys Res Ctr, Osaka 5670047, Japan
来源：
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT | 2010年 / 618卷 / 1-3期
关键词：
Radiative capture; Spectroscopy with light ions; Neutron spectroscopy; X- and gamma-ray spectroscopy; Scintillation detectors; RESONANCE NEUTRON-CAPTURE; C-12(N; GAMMA)C-13; REACTION; GIANT-RESONANCE; STELLAR ENERGY; P-WAVE; PB-208; SPECTROMETER; TRANSITIONS; MECHANISM; ISOTOPES;
D O I：
10.1016/j.nima.2010.03.127
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
A new measurement system to determine the neutron-capture cross-sections of a nucleus at 0.008 <= E-n < 20 MeV has been installed at the 4 MV Pelletron accelerator laboratory at the facility of radiation standards at Japan Atomic Energy Agency. The performance of the new system was studied by measuring the neutron-capture reaction cross-section of Pb-nat using pulsed neutrons from Li-7(p,n)Be-7 at 12 <= E-n <= 103 keV. Prompt gamma-rays from the reaction were detected by means of a highly sensitive anti-Compton Nal(Tl) spectrometer combined with a time-of-flight method. The obtained result demonstrated good sensitivity of the new system to determine the neutron-capture cross-sections of a nucleus at kiloelectron volt neutron energy. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码：153 / 159
页数：7
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