CeBr/sub 3/ scintillators for gamma-ray spectroscopy
CeBr/sub 3/ scintillators for gamma-ray spectroscopy
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DOI：
10.1109/nssmic.2004.1466835
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发表时间：
2004-10
期刊：
影响因子：
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通讯作者：
K. Shah;J. Glodo;W. Higgins;E. van Loef;W. Moses;S. Derenzo;M. Weber
中科院分区：
文献类型：
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作者：
K. Shah;J. Glodo;W. Higgins;E. van Loef;W. Moses;S. Derenzo;M. Weber
本文报道了一种新的伽马能谱闪烁体--溴化铈(CeBr3)。用布里奇曼法生长了这种闪烁体的晶体。在CeBr3中，Ce3+是闪烁过程中的本征成分和发光中心，具有较高的光输出(~68000光子/MeV)和快衰减常数(~17 ns)。此外，它还显示了用于伽马射线探测的良好的能量分辨率。例如，CeBr3-PMT(光电倍增管)和BaF2-PMT探测器使用511keV正电子湮没伽马射线对同时工作，记录了200ps-FWHM的能量分辨率。讨论了这种材料的潜在应用。
In this paper, we report on a new scintillator, cerium bromide (CeBr3), for gamma-ray spectroscopy. Crystals of this scintillator have been grown using Bridgman process. In CeBr3, Ce3+ is an intrinsic constituent as well as a luminescence center for the scintillation process, has high light output (~68,000 photons/MeV) and fast decay constant (~17 ns). Furthermore, it shows excellent energy resolution for gamma-ray detection. For example, energy resolution of 200 ps - FWHM) has been recorded with CeBr3-PMT (photomultiplier tubes) and BaF2-PMT detectors operating in coincidence using 511 keV positron annihilation gamma-ray pairs. Potential applications of this material are addressed