Non-uniformity effects of the inter-foil distance on GEM detector performance

Published

Journal Article

© 2016 Chinese Physical Society and the Institute of High Energy Physics of the Chinese Academy of Sciences and the Institute of Modern Physics of the Chinese Academy of Sciences and IOP Publishing Ltd. The non-uniformity effect of the inter-foil distance has been studied using a gaseous electron multiplication (GEM) detector with sensitive area of 50mm × 50mm. A gradient of the inter-foil distance is introduced by using spacers with different heights at the two ends of the foil gap. While the cluster size and the intrinsic spatial resolution show insignificant dependence on the inter-foil distance, the gain exhibits an approximately linear dependence on the inter-foil distance. From the slope, a quantitative relationship between the change of the inter-foil distance and the change of the gain is derived, which can be used as a method to evaluate the non-uniformity of the foil gap in the application of large-area GEM detectors.

Full Text

Duke Authors

Cited Authors

  • Huang, Y; Yi, H; Xiao, ZG; Zhang, Z; Cheng, WJ; Lü, LM; Yan, WH; Wang, RS; Li, HJ; Zhang, Y; Duan, LM; Hu, RJ; Lu, CG; Yang, HR; Ma, P; Gao, HY

Published Date

  • April 1, 2016

Published In

Volume / Issue

  • 40 / 4

International Standard Serial Number (ISSN)

  • 1674-1137

Digital Object Identifier (DOI)

  • 10.1088/1674-1137/40/4/046001

Citation Source

  • Scopus