Published September 2018 | Version v2
Journal article Open

Online method for neutron capture reaction cross-section measurement

Creators

  • 1. Key Laboratory of Nuclear Data, China Institute of Atomic Energy, Beijing (China)
  • 2. College of Liberal Arts and Sciences, National University of Defense Technology, Changsha (China)

Description

The γ-ray total absorption BaF2 facility was used to measure the neutron capture reaction cross-section with high precision. An experimental neutron source condition of keV energy region was set up through the 7Li(p, n)7Be reaction, based on the HI-13 tandem accelerator providing the pulsed proton beam. By using the total absorption BaF2 facility and online method, the prompt γ-ray cascades were detected when the neutron bombarded sample after shielding and collimation. Samples of Au, C, Nb and the blank were measured. The facility was checked and the online method for the (n, γ) reaction cross-section measurement was tested by comparing the deduced reaction cross-section ratio of 197Au(n, γ)198Au to 93Nb(n, γ)94Nb with the reference data. It also provides technical support for the implementation of (n, γ) reaction cross-section measurement at China Spallation Neutron Source (CSNS). (authors)

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Additional details

Identifiers

DOI
10.7538/yzk.2017.youxian.0817;

Publishing Information

Journal Title
Atomic Energy Science and Technology
Journal Volume
52
Journal Issue
9
Journal Page Range
p. 1537-1544
ISSN
1000-6931

INIS

Country of Publication
China
Country of Input or Organization
China
INIS RN
55027479
Subject category
S43: PARTICLE ACCELERATORS;
Descriptors DEI
CAPTURE; CHINA SPALLATION NEUTRON SOURCE; CROSS SECTIONS; GAMMA RADIATION; KEV RANGE; NEUTRON REACTIONS; NEUTRON SOURCES; NEUTRONS; PROTON BEAMS; SHIELDING; TANDEM ELECTROSTATIC ACCELERATORS
Descriptors DEC
ACCELERATOR NEUTRON SOURCE FACILITIES; ACCELERATORS; BARYON REACTIONS; BARYONS; BEAMS; ELECTROMAGNETIC RADIATION; ELECTROSTATIC ACCELERATORS; ELEMENTARY PARTICLES; ENERGY RANGE; FERMIONS; HADRON REACTIONS; HADRONS; IONIZING RADIATIONS; NEUTRON SOURCE FACILITIES; NUCLEAR REACTIONS; NUCLEON BEAMS; NUCLEON REACTIONS; NUCLEONS; PARTICLE BEAMS; PARTICLE SOURCES; RADIATION SOURCES; RADIATIONS; SPALLATION NEUTRON SOURCE FACILITIES

Optional Information

Notes
13 figs., 2 tabs., 18 refs.; http://dx.doi.org/10.7538/yzk.2017.youxian.0817