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Title: MWPC prototyping and performance test for the STAR inner TPC upgrade

A new prototype of STAR inner Time Projection Chamber (iTPC) MWPC sector has been fabricated and tested in an X-ray test system. The wire chamber built at Shandong University has a wire tension precision better than 6% and wire pitch precision better than 10 μm. The gas gain uniformity and energy resolution are measured to be better than 1% (RMS) and 20% (FWHM), respectively, using an 55Fe X-ray source. The iTPC upgrade project is to replace all 24 STAR TPC inner sectors as a crucial detector upgrade for the RHIC beam energy scan phase II program. Furthermore, the test results show that the constructed iTPC prototype meets all project requirements.
Authors:
 [1] ;  [1] ;  [1] ;  [1] ;  [1] ;  [2] ;  [3] ;  [1] ;  [1] ;  [1]
  1. Shandong Univ., Jinan (China)
  2. Brookhaven National Lab. (BNL), Upton, NY (United States)
  3. Shandong Univ., Jinan (China); Brookhaven National Lab. (BNL), Upton, NY (United States)
Publication Date:
Report Number(s):
BNL-203622-2018-JAAM
Journal ID: ISSN 0168-9002
Grant/Contract Number:
SC0012704
Type:
Accepted Manuscript
Journal Name:
Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment
Additional Journal Information:
Journal Volume: 896; Journal Issue: C; Journal ID: ISSN 0168-9002
Publisher:
Elsevier
Research Org:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Org:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
Country of Publication:
United States
Language:
English
Subject:
73 NUCLEAR PHYSICS AND RADIATION PHYSICS; STAR; TPC; MWPC; X-ray test system; Gain uniformity
OSTI Identifier:
1436456

Shen, Fuwang, Wang, Shuai, Kong, Fangang, Bai, Shiwei, Li, Changyu, Videbaek, Flemming, Xu, Zhangbu, Zhu, Chengguang, Xu, Qinghua, and Yang, Chi. MWPC prototyping and performance test for the STAR inner TPC upgrade. United States: N. p., Web. doi:10.1016/j.nima.2018.04.019.
Shen, Fuwang, Wang, Shuai, Kong, Fangang, Bai, Shiwei, Li, Changyu, Videbaek, Flemming, Xu, Zhangbu, Zhu, Chengguang, Xu, Qinghua, & Yang, Chi. MWPC prototyping and performance test for the STAR inner TPC upgrade. United States. doi:10.1016/j.nima.2018.04.019.
Shen, Fuwang, Wang, Shuai, Kong, Fangang, Bai, Shiwei, Li, Changyu, Videbaek, Flemming, Xu, Zhangbu, Zhu, Chengguang, Xu, Qinghua, and Yang, Chi. 2018. "MWPC prototyping and performance test for the STAR inner TPC upgrade". United States. doi:10.1016/j.nima.2018.04.019.
@article{osti_1436456,
title = {MWPC prototyping and performance test for the STAR inner TPC upgrade},
author = {Shen, Fuwang and Wang, Shuai and Kong, Fangang and Bai, Shiwei and Li, Changyu and Videbaek, Flemming and Xu, Zhangbu and Zhu, Chengguang and Xu, Qinghua and Yang, Chi},
abstractNote = {A new prototype of STAR inner Time Projection Chamber (iTPC) MWPC sector has been fabricated and tested in an X-ray test system. The wire chamber built at Shandong University has a wire tension precision better than 6% and wire pitch precision better than 10 μm. The gas gain uniformity and energy resolution are measured to be better than 1% (RMS) and 20% (FWHM), respectively, using an 55Fe X-ray source. The iTPC upgrade project is to replace all 24 STAR TPC inner sectors as a crucial detector upgrade for the RHIC beam energy scan phase II program. Furthermore, the test results show that the constructed iTPC prototype meets all project requirements.},
doi = {10.1016/j.nima.2018.04.019},
journal = {Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment},
number = C,
volume = 896,
place = {United States},
year = {2018},
month = {4}
}