LuAG:Ce และ YAG:Ce สำหรับการตรวจวัดรังสีแกมมา Light Yield Non-proportionality and Energy Resolution of LuAG:Ce and YAG:Ce Scintillators for Gamma Ray Detection
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Abstract
This research was aimed to study of light yield non-proportionality and energy resolution properties for two types of the scintillator namely LuAG:Ce and YAG:Ce crystals. The studied crystals were supplied by two companies in Czech Republic and P.R. China, respectively. At 662 keV gamma ray energy from 137Cs source, the LuAG:Ce crystal shows photoelectron yield of about 4,033 phel/MeV which is more than 3,065 phel/MeV for the YAG:Ce crystal, but the energy resolution of the LuAG:Ce crystal is worse. Over the energy range of 31-1,408 keV, the light yield non-proportionality versus gamma ray energy of both crystals was measured and discussed. The estimated photofraction was reported and compared to the cross-sectional ratio computed using the WinXCom program.
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เฉลิมพงษ์ โพธิ์ลี้ นเรศร์ จันทน์ขาว และ สมยศ ศรีสถิตย์. การปรับปรุงความเร็วการถ่ายภาพด้วยรังสีโดยใช้ฟิล์มสำหรับการตรวจสอบชิ้นงานทางอุตสาหกรรมโดยไม่ทำลาย. วารสารวิทยาศาสตร์และเทคโนโลยี มทร ธัญบุรี. 2558. 5(2) : 59-73.
van Eijk C.W.E. Inorganic-scintillator development. Nucl. Instrum. Methods Phys. Res. A. 2001. 460 : 1-14.
Moszynski M. Inorganic scintillation detectors in -ray spectrometry. Nucl. Instrum. Methods Phys. Res. A. 2003. 505 : 101-110.
Lecoq P., Annenkov A., Gektin A., Korzhik M. and Pedrini C. Inorganic Scintillators for Detector Systems. Springer, Netherlands. 2006.
Chewpraditkul W., Swiderski L., Moszynski M., Szczesniak T., Syntfeld-Kazuch A., Wanarak C. and Limsuwan P. Scintillation properties of LuAG:Ce, YAG:Ce and LYSO:Ce crystals for gamma ray detection. IEEE Trans. Nucl. Sci. 2009. 56 : 3800-3805.
Swiderski L., Moszynski M., Nassalski A., Syntfeld-Kazuch A., Szczesniak T., Kamada K., Tsutsumi K., Usuki Y., Yanagida T., Yoshikawa A. Chewpraditkul W. and Pomorski M. Scintillation properties of praseodymium doped LuAG scintillator compared to cerium doped LuAG, LSO and LaBr3. IEEE Trans. Nucl. Sci. 2009. 56 : 2499-2505.
Bhattacharjee T., Kumar Basu S., Charan Dey C. and Baran Chatterjee M. Comparative studies of YAG(Ce) and CsI(Tl) scintillators. Nucl. Instrum. Methods Phys Res. A. 2002. 484 : 364-368.
Mares A., Nikl M., D’Ambrosio C., de Notaristefani, Blazek K. Scintillation photoelectron Nphels(E) and light LY(E) yields of YAP:Ce and YAG:Ce crystals. Opt. Mater. 2003. 24 : 281-284.
Guzik Z., Borsuk S., Traczyk K. and Plominski M. TUKAN-an 8k pulse height analyzer and multi-channel scaler with a PCI or a USB interface. IEEE Trans. Nucl. Sci. 2006. 53(1) : 231-235.
Bertolaccini M., Cova S. and Bussolati C. A technique for absolute measurement of the effective photoelectron per keV yield in scintillation counters. Proceeding of International Symposium on Nuclear Electronics. Versailles, France. 10-13 September 1968.
Moszynski M., Zalipska J., Balcerzyk M., Kapusta M., Mengesha W. and Valentine J.D. Intrinsic energy resolution of NaI(Tl)1. Nucl. Instrum. Methods Phys Res. A. 2002. 484(1-3) : 259-269.
Dorenbos P., de Haas J.T.M. and van Eijk, C.W.E. Non-proportionality in the scintillation response and energy resolution obtainable with scintillation crystals. IEEE Trans. Nucl. Sci. 1995. 42(6) : 2190-2202.
Dorenbos P. Light output and energy resolution of Ce3+-doped scintillators. Nucl. Instrum. Methods Phys Res. A. 2002. 486 : 208-213.
Gerward L., Guilbert N., Jensen K.B. and Levrning H. WinXCom - a program for calculating x-ray attenuation coefficients. Radiat Phys and Chem. 2004. 71(3-4) : 653-654.