Measurements of the Neutron Total and Capture Cross Sections and Derivation of the Resonance Parameters of 181Ta

被引：1

作者：

Endo, Shunsuke ^{[1
]}

Kimura, Atsushi ^{[1
]}

Nakamura, Shoji ^{[1
]}

Iwamoto, Osamu ^{[1
]}

Iwamoto, Nobuyuki ^{[1
]}

Rovira, Gerard ^{[1
]}

Toh, Yosuke ^{[2
]}

Segawa, Mariko ^{[2
]}

Maeda, Makoto ^{[2
]}

机构：

[1] Japan Atom Energy Agcy, Nucl Data Ctr, 2-4 Shirakata, Tokai, Ibaraki 3191195, Japan

[2] Japan Atom Energy Agcy, Res Grp Nucl Sensing, 2-4 Shirakata, Tokai, Ibaraki 3191195, Japan

来源：

NUCLEAR SCIENCE AND ENGINEERING | 2024年 / 198卷 / 04期

关键词：

Tantalum; total cross section; capture cross section; J-PARC MLF ANNRI; resonance parameter; ANNRI; AG; TANTALUM; TA; AU;

D O I：

10.1080/00295639.2023.2227826

中图分类号：

TL [原子能技术]; O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

The neutron total and capture cross sections of Ta-181 were measured at the Accurate Neutron-Nucleus Research Measurement Instrument of the Materials and Life Science Experimental Facility in the Japan Proton Accelerator Research Complex to improve the accuracy of the current resonance parameters. The total cross section was determined from the transmission measurement in the energy range from 0.2 to 150 eV. The capture cross section was derived from the capture yield using the pulse height weighting technique in the energy range from thermal to 150 eV. The thermal neutron capture cross section was measured as 21.3 +/- 0.3(stat) +/- 0.6(sys) b. The obtained transmission and capture cross section were simultaneously fitted using the resonance analysis code REFIT, and the resonance parameters for resonances below 150 eV were evaluated. The present resonance parameters were compared to reported measurements.

引用

页码：786 / 803

页数：18

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