Development and performance evaluation of Thick-GEM

Author

Yamaguchi, Yorito ; Hamagaki, Hideki ; Gunji, Taku ; Oda, Susumu ; Aramaki, Yoki ; Sano, Satoshi ; Tamagawa, Toru

Author_Institution

Univ. of Tokyo, Tokyo

Volume

6

fYear

2007

fDate

Oct. 26 2007-Nov. 3 2007

Firstpage

4645

Lastpage

4648

Abstract

A Gas Electron Multiplier with a thick insulator such as a 100 mum or 150 mum thick insulator (Thick-GEM) has been developed by dry etching successfully in Japan. The electric field inside a hole of the Thick-GEM was calculated and the basic properties of the Thick-GEM were measured. A much stronger electric field can be realized inside the hole of the Thick-GEM than that of a GEM with a 50 mum thick insulator (Standard-GEM). The Thick-GEM can attain much higher gain than the Standard-GEM and has a good gain stability within 1.0% for 9 hours. In this paper, the characteristics of the Thick-GEM are described compared with the Standard-GEM.

Keywords

electron multiplier detectors; position sensitive particle detectors; GEM; dry etching technique; electric field; gas electron multiplier; thick insulator; Dielectrics and electrical insulation; Dry etching; Electric variables measurement; Electron multipliers; Gas insulation; Stability; Thickness measurement; Gas Electron Multiplier; Index Terms; Thick-GEM; dry etching;

fLanguage

English

Publisher

ieee

Conference_Titel

Nuclear Science Symposium Conference Record, 2007. NSS '07. IEEE

Conference_Location

Honolulu, HI

ISSN

1095-7863

Print_ISBN

978-1-4244-0922-8

Electronic_ISBN

1095-7863

Type

conf

DOI

10.1109/NSSMIC.2007.4437144

Filename

4437144