MWPC prototyping and performance test for the STAR inner TPC upgrade

Fuwang Shen; Shuai Wang; Fangang Kong; Shiwei Bai; Changyu Li; Flemming Videbaek; Zhangbu Xu; Chengguang Zhu; Qinghua Xu; Chi Yang

doi:10.1016/j.nima.2018.04.019

MWPC prototyping and performance test for the STAR inner TPC upgrade

Instrumentation and Detectors 2018-05-23 v1

Authors: Fuwang Shen , Shuai Wang , Fangang Kong , Shiwei Bai , Changyu Li , Flemming Videbaek , Zhangbu Xu , Chengguang Zhu , Qinghua Xu , Chi Yang

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Abstract

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 $\mu$ m. The gas gain uniformity and energy resolution are measured to be better than 1 $\%$ (RMS) and 20 $\%$ (FWHM), respectively, using an $^{55}$ Fe 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. The test results show that the constructed iTPC prototype meets all project requirements.

Keywords

gaseous detectors

Cite

@article{arxiv.1805.03938,
  title  = {MWPC prototyping and performance test for the STAR inner TPC upgrade},
  author = {Fuwang Shen and Shuai Wang and Fangang Kong and Shiwei Bai and Changyu Li and Flemming Videbaek and Zhangbu Xu and Chengguang Zhu and Qinghua Xu and Chi Yang},
  journal= {arXiv preprint arXiv:1805.03938},
  year   = {2018}
}

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8 pages, 12 figures

MWPC prototyping and performance test for the STAR inner TPC upgrade

Abstract

Keywords

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