글로벌 연구동향
의학물리학
- 2018년 02월호
[Radiation Measurements] Intrinsically activated TlCaCl3: A new halide scintillator for radiation detection경북대 / Arshad Kha, 김홍주*
- 출처
- Radiation Measurements
- 등재일
- 2017 Dec
- 저널이슈번호
- Volume 107, December 2017, Pages 115-118
- 내용
Abstract
A new intrinsically activated TlCaCl3 scintillator has been developed by conventional Bridgman technique. The emission spectra under X-ray excitation show broad band spanning in the range of 350–550 nm having maximum emission at 425 nm. Light output of 30,600 ± 3060 ph/MeV and energy resolution of 5% (FWHM) is recorded under 662 keV γ-rays excitation from a 137Cs source. The scintillation decay time is bi-exponential with components of 317 ns and 727 ns having total light yield contribution of 44% and 56%, respectively. Due to high effective Z-number (Zeff = 65.5) than the widely used commercial scintillators such as NaI: Tl (Zeff = 50.8) and CsI: Tl (Zeff = 54), the grown crystal will provide higher detection efficiency for X- and γ-rays. The measured scintillation properties showed that TlCaCl3 could be the best candidate for the detection of X- and γ-rays in different applications.Author information
ArshadKhanaGulRoohbH.J.KimaH.ParkaSunghwanKimc
a
Department of Physics, Kyungpook National University, Daegu 41566, Republic of Korea
b
Department of Physics, Abdul Wali Khan University, Mardan 23200, Pakistan
c
Department of Radiological Science, Cheongju University, Cheongju 41566, Republic of Korea
- 키워드
- TlCaCl3; Light yield; Energy resolution; Scintillator
- 덧글달기
편집위원
의학 영상 및 감마카메라 등의 분야에 사용 가능한 국내 자체 연구 개발 Crystal Scintillation material 에 대한 논문임
덧글달기닫기2018-02-14 16:28:02
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