A study of energy resolution in a gridded ionization chamber filled with tetramethylsilane and tetramethylgermanium

Author

Hara, H. ; Hoshi, Y. ; Yuta, H. ; Abe, K. ; Suekane, F. ; Neichi, M. ; Katayama, J. ; Nakajima, T. ; Masuda, K. ; Kawamura, N.

Author_Institution

Dept. of Appl. Phys., Tohoku Gakuin Univ., Tagajo, Japan

Volume

2

fYear

1995

fDate

21-28 Oct 1995

Firstpage

705

Abstract

The energy resolutions of 976 keV conversion electrons from a ²⁰⁷Bi source are measured in a gridded ionization chamber filled with tetramethylsilane (TMS) and tetramethylgermanium (TMG), and are found to be about 5.71, 5.53% (RMS) for TMS and TMG, respectively. We discuss on the difference between the obtained energy resolution and the theorically limited energy resolution. We also deduce a simple method of estimating the electron lifetime by a gridded ionization chamber. The electron lifetime, free ion yield and thermalization length for these liquids are measured by this simple method

Keywords

electron detection; ionisation chambers; organic compounds; 976 keV; ²⁰⁷Bi source; Bi; TMG; TMS; conversion electrons; electron lifetime; energy resolution; free ion yield; gridded ionization chamber; tetramethylgermanium; tetramethylsilane; thermalization length; Anodes; Argon; Cathodes; Detectors; Electrons; Energy resolution; Ionization chambers; Life estimation; Lifetime estimation; Physics;

fLanguage

English

Publisher

ieee

Conference_Titel

Nuclear Science Symposium and Medical Imaging Conference Record, 1995., 1995 IEEE

Conference_Location

San Francisco, CA

Print_ISBN

0-7803-3180-X

Type

conf

DOI

10.1109/NSSMIC.1995.510367

Filename

510367