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Development of Calibration Fields of Intermediate Neutrons by Using Several Sources

Takeda, N
Senior Researchers,Electrotechnical Laboratory,

Kudo, K
Senior Researchers,Electrotechnical Laboratory,

Fujishiro, M
Professor,Research Institute for Advanced Science and Technology, Osaka Prefecture University,

Okamoto, K
Senior Staff, Associate Professor, and Senior Staff,Research Reactor Institute, Kyoto University,

Kobayashi, K
Senior Staff, Associate Professor, and Senior Staff,Research Reactor Institute, Kyoto University,

Yoshimoto, T
Senior Staff, Associate Professor, and Senior Staff,Research Reactor Institute, Kyoto University,

Pages: 8    Published: Jan 2001

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Source: STP1398-EB

Abstract

Intermediate neutron Fields were developed using three different neutron sources, i.e., a ¹²⁴Sb-Be photoneutron source, an iron filtered neutron beam from the Kyoto University Reactor (KUR), and a Sc(p,n)Ti reaction using an electrostatic accelerator at the Electrotechnical Laboratory (ETL). Neutron fluences of the iron filtered neutron beam and the neutron generated by Sc(p,n)Ti reaction were measured by a ³He or hydrogen gas proportional counter. Neutron emission rate of the ¹²⁴Sb-Be source was measured by a manganese bath method developed at the ETL. Neutron energy spectra were simulated by MCNP-4 code. Field properties were then studied and compared.

Keywords:
calibration field, intermediate neutron, Sc(p,n) reaction, Sb-Be photoneutron source, iron filtered neutron beam

Paper ID: STP13618S
Committee/Subcommittee: E10.08
DOI: 10.1520/STP13618S
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