• Shimodan, C.
• Takahashi, H.
• Majewski, P. A.
• Kimura, H.
• Sato, Y.
• Brunbauer, F.
• Tanaka, M.
• Fujiwara, T.
• Mitsuya, Y.
• Harano, H.

Abstract

Micro-patterned gas detectors (MPGDs) are an important typeof gaseous detector that can amplify and detect a small amount ofelectric charge generated by the interaction between radiation andgas. These detectors have high gain and high spatial resolution,making them useful in various applications ranging from high energyphysics to medical instrumentation. However, one of the most widelyused MPGDs, Gaseous Electron Multipliers (GEMs), may oftenexperiences electrical discharges due to excessive electric field inthe small space, which reduces their durability. To address thisissue, we previously have developed a new type of GEM that usesglass as the insulator instead of conventional materials. Our glassGEM demonstrated excellent gas gain and energy resolutioncharacteristics. In this work, we used nickel as the electrode,which has a higher melting point than copper and showed higherdurability against arc discharges. Moreover, the nickel glass GEMperformed comparably to conventional Cu-based glass GEMs inevaluation using radiation isotopes. Our findings suggest that ournew glass GEM with nickel electrodes is a promising solution to thedurability problem of conventional GEMs. This could lead toimprovements in the performance and longevity of MPGDs, which couldhave significant implications for various applications in the fieldsof physics, engineering, and medicine.

Topics

• impedance spectroscopy
• nickel
• glass
• glass
• copper
• durability