A ONE-DIMENSIONAL TIME-RESOLVED PINHOLE CAMERA FOR INTENSE PULSED BREMSSTRAHLUNG SOURCES

被引：3

作者：

FEHL, DL ^{[1
]}

LEEPER, RJ ^{[1
]}

LEE, JR ^{[1
]}

HEDEMANN, MA ^{[1
]}

STYGAR, WA ^{[1
]}

SUJKA, BR ^{[1
]}

HEBRON, DE ^{[1
]}

ROBISCHON, SJ ^{[1
]}

PEYTON, BP ^{[1
]}

机构：

[1] KTECH CORP INC,ALBUQUERQUE,NM 87110

来源：

REVIEW OF SCIENTIFIC INSTRUMENTS | 1994年 / 65卷 / 06期

关键词：

D O I：

10.1063/1.1144845

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

A time-resolved pinhole camera has been constructed to diagnose flash x-ray bremsstrahlung sources with end-point energies of approximately 2 MeV The detector is a 20-channel linear array of noncontinguous plastic scintillators with a sampling distance of 6.4 mm. Optical signals from the scintillators are conducted by fiber-optic links to a remote bank of photomultiplier tubes. Nominally, the absolute sensitivity of the channels is approximately 18 nC/R at 1.1 MeV. The temporal resolution is approximately 5 ns, and the spatial resolution in the source plane is approximately 38 mm for a 3-mm pinhole and magnification of 1/3. The spectral response of the scintillator channels, the relative channel-to-channel sensitivities, cross talk between channels, backgrounds, and noise limitations have also been studied. Experiments with this camera on the Saturn simulator have yielded information on the simultaneity and duration of the x-ray emission from individual source rings. This camera complements time-integrated and time-gated cameras, as well as spatially integrated, but time-resolved, PIN diode and scintillator/photodiode detectors.

引用

页码：1935 / 1948

页数：14

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