Overview of CSNS tantalum cladded tungsten solid Target-1 and Target-2

Shaohong Wei; Ruiqiang Zhang; Quan Ji; Changfeng Li; Bin Zhou; Youlian Lu; Jun Xu; Ke Zhou; Chongguang Zhao; Ning He; Wen Yin; Tianjiao Liang

Nuclear Engineering and Technology (May 2022)

Overview of CSNS tantalum cladded tungsten solid Target-1 and Target-2

Shaohong Wei,
Ruiqiang Zhang,
Quan Ji,
Changfeng Li,
Bin Zhou,
Youlian Lu,
Jun Xu,
Ke Zhou,
Chongguang Zhao,
Ning He,
Wen Yin,
Tianjiao Liang

Affiliations

Shaohong Wei: Institute of High Energy Physics, Chinese Academy of Sciences (CAS), Beijing, 100049, China; Spallation Neutron Source Science Center, Dongguan, 523803, China
Ruiqiang Zhang: Institute of High Energy Physics, Chinese Academy of Sciences (CAS), Beijing, 100049, China; Spallation Neutron Source Science Center, Dongguan, 523803, China
Quan Ji: Institute of High Energy Physics, Chinese Academy of Sciences (CAS), Beijing, 100049, China
Changfeng Li: Institute of High Energy Physics, Chinese Academy of Sciences (CAS), Beijing, 100049, China; Spallation Neutron Source Science Center, Dongguan, 523803, China
Bin Zhou: Institute of High Energy Physics, Chinese Academy of Sciences (CAS), Beijing, 100049, China; Spallation Neutron Source Science Center, Dongguan, 523803, China
Youlian Lu: Institute of High Energy Physics, Chinese Academy of Sciences (CAS), Beijing, 100049, China; Spallation Neutron Source Science Center, Dongguan, 523803, China
Jun Xu: Institute of High Energy Physics, Chinese Academy of Sciences (CAS), Beijing, 100049, China; Spallation Neutron Source Science Center, Dongguan, 523803, China
Ke Zhou: Institute of High Energy Physics, Chinese Academy of Sciences (CAS), Beijing, 100049, China; Spallation Neutron Source Science Center, Dongguan, 523803, China
Chongguang Zhao: Institute of High Energy Physics, Chinese Academy of Sciences (CAS), Beijing, 100049, China; Spallation Neutron Source Science Center, Dongguan, 523803, China
Ning He: Institute of High Energy Physics, Chinese Academy of Sciences (CAS), Beijing, 100049, China; Spallation Neutron Source Science Center, Dongguan, 523803, China
Wen Yin: Institute of High Energy Physics, Chinese Academy of Sciences (CAS), Beijing, 100049, China; Spallation Neutron Source Science Center, Dongguan, 523803, China; Guangdong-Hong Kong-Macao Joint Laboratory for Neutron Scattering Science and Technology, Dongguan, 523803, China; Corresponding author. Institute of High Energy Physics, Chinese Academy of Sciences (CAS), Beijing, 100049, China.
Tianjiao Liang: Institute of High Energy Physics, Chinese Academy of Sciences (CAS), Beijing, 100049, China; Spallation Neutron Source Science Center, Dongguan, 523803, China; Guangdong-Hong Kong-Macao Joint Laboratory for Neutron Scattering Science and Technology, Dongguan, 523803, China; Corresponding author. Spallation Neutron Source Science Center, Dongguan, 523803, China.

Journal volume & issue: Vol. 54, no. 5
pp. 1535 – 1540

Abstract

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A solid tungsten target was used at the China Spallation Neutron Source (CSNS) with 100 kW proton beam power. To improve the lifetime, hot isostatic pressing (HIP) process was selected to bond tantalum cladding with tungsten plates. Radioactive isotope 182Ta, an activation product of tantalum, was found in the cooling water after a period of operation, however, no radioactive isotopes of 187W was found, which shows the tantalum layer remained mostly intact. The CSNS Target-1 had been operating safely for three years and was replaced by Target-2 in August 2020.

Published in Nuclear Engineering and Technology

ISSN: 1738-5733 (Print)
Publisher: Elsevier
Country of publisher: Korea, Republic of
LCC subjects: Technology: Electrical engineering. Electronics. Nuclear engineering: Nuclear engineering. Atomic power
Website: http://www.journals.elsevier.com/nuclear-engineering-and-technology

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