Title :
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
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;
Conference_Titel :
Nuclear Science Symposium and Medical Imaging Conference Record, 1995., 1995 IEEE
Conference_Location :
San Francisco, CA
Print_ISBN :
0-7803-3180-X
DOI :
10.1109/NSSMIC.1995.510367
