Pr3+-doped fluoro-oxide lithium glass as scintillator for nuclear fusion diagnostics
Pr3+-doped fluoro-oxide lithium glass as scintillator for nuclear fusion diagnostics
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DOI：
10.1063/1.3254444
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发表时间：
2009-11-01
影响因子：
1.6
通讯作者：
Kan, Hirofumi
中科院分区：
文献类型：
--
作者：
Arikawa, Yasunobu;Yamanoi, Kohei;Kan, Hirofumi
介绍了一种定制设计的掺Pr 3+（镨钕）锂（Li）玻璃的中子吸收特性的实验结果。在278 nm波长处观察到源自5d-4f跃迁的发光。时间分辨的测量产生约20纳秒的衰减时间为紫外线和X射线激发，而更快的衰减时间约为6纳秒观察α粒子和中子激发。大坂大学激光工程研究所GEKKO XII设施的激光聚变实验中的实际飞行时间数据表明，它可以清楚地将聚变中子与强得多的X射线信号区分开来。这种材料可以保证在未来的散射中子诊断中提高精度。(C)2009年美国物理学会。[doi：10.1063/1.3254444]
Experimental results are presented on the neutron scintillating properties of a custom-designed Pr3+(praseodymium)-doped lithium (Li) glass. Luminescence was observed at 278 nm wavelength, originating from the 5d-4f transition. Time-resolved measurements yielded about 20 ns decay times for ultraviolet and x-ray excitation while much faster decay times of about 6 ns were observed for alpha particle and neutron excitation. Actual time-of-flight data in laser fusion experiments at the GEKKO XII facility of the Institute of Laser Engineering, Osaka University reveal that it can clearly discriminate fusion neutrons from the much stronger x-rays signals. This material can promise improved accuracy in future scattered neutron diagnostics. (C) 2009 American Institute of Physics. [doi:10.1063/1.3254444]