Design and implementation of wire tension measurement system for MWPCs used in the STAR iTPC upgrade

Journal Article · Thu Apr 06 00:00:00 EDT 2017 · Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment

DOI: https://doi.org/10.1016/j.nima.2017.04.005 · OSTI ID:1413922

Wang, Xu ^[1]; Shen, Fuwang ^[1]; Wang, Shuai ^[1]; Feng, Cunfeng ^[1]; Li, Changyu ^[1]; Lu, Peng ^[1]; Thomas, Jim ^[2]; Xu, Qinghua ^[1]; Zhu, Chengguang ^[1]

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1. Shandong Univ., Jinan (China). Key Lab. of Particle Physics and Particle Irradiation (MOE), School of Physics
2. Lawrence Berkeley National Lab. (LBNL), Berkeley, CA (United States). Nuclear Science Division

The STAR experiment at RHIC is planning to upgrade the Time Projection Chamber which lies at the heart of the detector. We have designed an instrument to measure the tension of the wires in the multi-wire proportional chambers (MWPCs) which will be used in the TPC upgrade. The wire tension measurement system causes the wires to vibrate and then it measures the fundamental frequency of the oscillation via a laser based optical platform. The platform can scan the entire wire plane, automatically, in a single run and obtain the wire tension on each wire with high precision. In this paper, the details about the measurement method and the system setup will be described. In addition, the test results for a prototype MWPC to be used in the STAR-iTPC upgrade will be presented.

• Research Organization: Brookhaven National Laboratory (BNL), Upton, NY (United States). Relativistic Heavy Ion Collider
• Sponsoring Organization: USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26); National Natural Science Foundation of China (NNSFC)
• Grant/Contract Number: SC0012704
• OSTI ID: 1413922
• Report Number(s): BNL--114430-2017-JA; KB0202012
• Journal Information: Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment, Journal Name: Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment Journal Issue: C Vol. 859; ISSN 0168-9002
• Publisher: ElsevierCopyright Statement
• Country of Publication: United States
• Language: English