Title :
Experimental Determination of the Ionization Energy in TlBr
Author :
Hitomi, Keitaro ; Onodera, Toshiyuki ; Seong-Yun Kim ; Shoji, Tadayoshi ; Ishii, Keizo
Author_Institution :
Dept. of Quantum Sci. & Energy Eng., Tohoku Univ., Sendai, Japan
Abstract :
The average ionization energy required to excite an electron-hole pair in TlBr was estimated to be 5.50 ± 0.05 eV by comparing the peak position of 59.5-keV gamma rays obtained from four pixels of a pixelated TlBr detector to the peak position obtained from a Si PIN photodiode at room temperature.
Keywords :
gamma-ray effects; ionisation potential; photoconductivity; semiconductor counters; thallium compounds; wide band gap semiconductors; Si PIN photodiode comparison; TlBr; electron-hole pair excitation; gamma rays; ionization energy; pixelated TlBr detector; temperature 293 K to 298 K; Cadmium compounds; Crystals; Detectors; Gamma-rays; II-VI semiconductor materials; Image quality; Ionization; Gamma-ray detector; ionization energy; semiconductor radiation detector; thallium bromide; wide-gap semiconductor;
Journal_Title :
Nuclear Science, IEEE Transactions on
DOI :
10.1109/TNS.2015.2430971
