| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 8166215 | Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment | 2018 | 6 Pages |
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 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. The test results show that the constructed iTPC prototype meets all project requirements.
Related Topics
Physical Sciences and Engineering
Physics and Astronomy
Instrumentation
Authors
Fuwang Shen, Shuai Wang, Fangang Kong, Shiwei Bai, Changyu Li, Flemming Videbæk, Zhangbu Xu, Chengguang Zhu, Qinghua Xu, Chi Yang,