Title :
Scintillation mechanism in helium mixed with xenon
Author :
Saito, Kiwamu ; Sasaki, Shinichi ; Sanami, Toshiya ; Tawara, Hiroko ; Shibamura, Eido
Author_Institution :
High Energy Accel. Res. Organ., Tsukuba, Japan
fDate :
Oct. 24 2009-Nov. 1 2009
Abstract :
We have been studying scintillation mechanism in helium mixed with xenon. In this study, the time profiles and the luminescence spectra of scintillation in the mixture were measured using a PMT sensitive to photons with wavelength of 115-300nm. Scintillation and ionization yields in He/Xe were measured simultaneously. The time profiles and luminescence spectra depend on not only the xenon pressure but also the helium pressure. Scintillation yields in He/Xe are large as compared with the estimated yields assuming that the energy transfer from helium to xenon does not exist.
Keywords :
gas mixtures; photoionisation; photoluminescence; scintillation; He; PMT; Xe; energy transfer; helium pressure; helium xenon mixture; ionization yields; luminescence spectra; scintillation mechanism; time profiles; wavelength 115 nm to 300 nm; xenon pressure; Atomic measurements; Energy measurement; Gases; Helium; Ionization; Loss measurement; Luminescence; Time measurement; Wavelength measurement; Xenon;
Conference_Titel :
Nuclear Science Symposium Conference Record (NSS/MIC), 2009 IEEE
Conference_Location :
Orlando, FL
Print_ISBN :
978-1-4244-3961-4
Electronic_ISBN :
1095-7863
DOI :
10.1109/NSSMIC.2009.5402289
