TY - JOUR
T1 - Fabrication of double-sided thallium bromide strip detectors
AU - Hitomi, Keitaro
AU - Nagano, Nobumichi
AU - Onodera, Toshiyuki
AU - Kim, Seong Yun
AU - Ito, Tatsuya
AU - Ishii, Keizo
N1 - Funding Information:
This work was supported by JSPS KAKENHI Grant Number 15H02523 .
Publisher Copyright:
© 2016, Elsevier B.V. All rights reserved.
PY - 2016/7/1
Y1 - 2016/7/1
N2 - Double-sided strip detectors were fabricated from thallium bromide (TlBr) crystals grown by the traveling-molten zone method using zone-purified materials. The detectors had three 3.4-mm-long strips with 1-mm widths and a surrounding electrode placed orthogonally on opposite surfaces of the crystals at approximately 6.5×6.5 mm2 in area and 5 mm in thickness. Excellent charge transport properties for both electrons and holes were observed from the TlBr crystals. The mobility-lifetime products for electrons and holes in the detector were measured to be ∼3×10-3 cm2/V and ∼1×10-3 cm2/V, respectively. The 137Cs spectra corresponding to the gamma-ray interaction position were obtained from the detector. An energy resolution of 3.4% of full width at half maximum for 662-keV gamma rays was obtained from one "pixel" (an intersection of the strips) of the detector at room temperature.
AB - Double-sided strip detectors were fabricated from thallium bromide (TlBr) crystals grown by the traveling-molten zone method using zone-purified materials. The detectors had three 3.4-mm-long strips with 1-mm widths and a surrounding electrode placed orthogonally on opposite surfaces of the crystals at approximately 6.5×6.5 mm2 in area and 5 mm in thickness. Excellent charge transport properties for both electrons and holes were observed from the TlBr crystals. The mobility-lifetime products for electrons and holes in the detector were measured to be ∼3×10-3 cm2/V and ∼1×10-3 cm2/V, respectively. The 137Cs spectra corresponding to the gamma-ray interaction position were obtained from the detector. An energy resolution of 3.4% of full width at half maximum for 662-keV gamma rays was obtained from one "pixel" (an intersection of the strips) of the detector at room temperature.
KW - Gamma-ray detector
KW - Position-sensitive detector
KW - Semiconductor radiation detector
KW - Strip detector
KW - Thallium bromide (TlBr)
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U2 - 10.1016/j.nima.2016.03.107
DO - 10.1016/j.nima.2016.03.107
M3 - Article
AN - SCOPUS:84962778045
SN - 0168-9002
VL - 823
SP - 15
EP - 19
JO - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
JF - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
ER -