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arXiv 1210.3755cond-mat.mtrl-scinucl-exphysics.ins-det
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纯的和掺Ce $^{3+}$的SrF $_2$晶体的闪烁性能

Scintillation properties of pure and Ce$^{3+}$-doped SrF$_2$ crystals

R. Shendrik, E. A. Radzhabov, A. I. Nepomnyashchikh

摘要:

本文介绍了纯氟化锶晶体和掺铈氟化锶晶体闪烁特性的测量结果。我们测量了光输出、闪烁衰减时间曲线和光输出的温度稳定性。纯SrF 2和SrF 2 -0.3 mol.%的单色器和光电倍增管的光谱响应校正的X射线激发的发光输出Ce ~(3+)分别约为NaI-Tl发射输出的95%和115%。当用662 KeV光子激发10 x 10 mm纯SrF 2晶体样品时,在对光电倍增管的光谱响应进行校正后,在NaI-Tl晶体光输出的约84%处观察到半峰全宽为10%的光峰。SrF 2的校正光输出-0.3摩尔% Ce ~(3+)在662 KeV光子激发下的光输出约为NaI-Tl晶体光输出的64%。

英文摘要:

In this paper results of scintillation properties measurements of pure and Ce3+-doped strontium fluoride crystals are presented. We measure light output, scintillation decay time profile and temperature stability of light output. X-ray excited luminescence outputs corrected for spectral response of monochromator and photomultiplier for pure SrF2 and SrF2-0.3 mol.% Ce3+ are approximately 95% and 115% of NaI-Tl emission output, respectively. A photopeak with a 10% full width at half maximum is observed at approximately 84% the light output of a NaI-Tl crystal after correction for spectral response of photomultiplier, when sample 10x10 mm of pure SrF2 crystal is excited with 662 KeV photons. Corrected light output of SrF2-0.3 mol.% Ce3+ under 662 KeV photon excitation is found at approximately 64% the light output of the NaI-Tl crystal.

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