Progress in fast scintillators

被引：61

作者：

Rodnyi, PA ^{[1
]}

机构：

[1] St Petersburg State Tech Univ, Expt Phys Dept, St Petersburg 195251, Russia

来源：

RADIATION MEASUREMENTS | 2001年 / 33卷 / 05期

关键词：

fast scintillators; core-valence transitions; rare earth ion emission;

D O I：

10.1016/S1350-4487(01)00068-3

中图分类号：

TL [原子能技术]; O571 [原子核物理学];

学科分类号：

0827 ; 082701 ;

摘要：

The state of the art of fast scintillator development is considered. Decay curves of some scintillators measured at pulsed (0.5 ns) X-ray excitation are presented. Literature results are analyzed and summarized. It is shown that radiative core-valence transitions are best suited for subnanosecond and nanosecond scintillations, while rare earth ions show efficient scintillation with decay constants of tens of nanoseconds in oxygen-based crystals. Emissions from both Ce3+ ions and core-valence transitions in a crystal are particularly useful for neutron/gamma discrimination. Promising emission mechanisms are proposed to be used in fast scintillators. (C) 2001 Elsevier Science Ltd. All rights reserved.

引用

页码：605 / 614

页数：10

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