Neutron bang time detector based on a light pipe

被引：2

作者：

Glebov, V. Yu. ^{[1
]}

Moran, M. ^{[2
]}

Stoeckl, C. ^{[1
]}

Sangster, T. C. ^{[1
]}

Cruz, M. ^{[1
]}

机构：

[1] Univ Rochester, Laser Energet Lab, Rochester, NY 14623 USA

[2] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA

来源：

REVIEW OF SCIENTIFIC INSTRUMENTS | 2008年 / 79卷 / 10期

关键词：

neutron detection; oscilloscopes; photodiodes; photomultipliers; scintillation; stainless steel;

D O I：

10.1063/1.2955571

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

A neutron bang time detector consisting of a scintillator, light pipe, photomultiplier tube (PMT), and high-bandwidth oscilloscope has been implemented on the 60-beam, 30 kJ OMEGA Laser Facility at the University of Rochester's Laboratory for Laser Energetics. Light from the scintillator, located 23 cm from the target, is transmitted from the target bay through a 9.6-m-long, 2 in. diameter polished stainless steel pipe to the PMT. The PMT signal is recorded by two channels of a 6 GHz, 10 GS/s Tektronix 6604 oscilloscope. The OMEGA optical fiducial pulse train is recorded on the third oscilloscope channel using a fast photodiode to provide the timing reference to the laser. This bang time detector is absolutely temporally calibrated and has been demonstrated to measure the bang time for neutron yields above 1x10(9) with an accuracy of better than 25 ps.

引用

页数：3

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