Gas gain study of a large-size multilayer Micromegas. (December 2020)

• Record Type: Journal Article
• Authors: Dubinin, F; Iengo, P; Sekhniaidze, G; Zhukov, K
• Is Part Of: Journal of physics. Volume 1690(2020)
• Publication Date: 2020-12
• Subjects: Physics -- Congresses; 530.5
• DOI: 10.1088/1742-6596/1690/1/012046
• Languages: English
• ISSNs: 1742-6588

Abstract

Abstract: The results of the study of a large-size, multilayer Micromegas detector with X-ray source Cd-109 are discussed. The detector consists of 4 layers, each of them is a Micromegas detector with resistive anode and strip-based read-out structure. The gas volume of the chamber is split to 4 parts interconnected in 6 points. Results of the measurements of the gas gain curves and the 1st Townsend coefficient as well as the E_amp/E_drift characteristics are presented and discussed. The detector presented a non-negligible gas leak, affecting the reported results. The influence of the leak on operation of the module is estimated.