A one-dimensional time-resolved pinhole camera for intense pulsed bremsstrahlung sources

Journal Article · Wed Jun 01 00:00:00 EDT 1994 · Review of Scientific Instruments; (United States)

DOI:https://doi.org/10.1063/1.1144845· OSTI ID:7045143

Fehl, D L; Leeper, R J; Lee, J R; Hedemann, M A; Stygar, W A; Sujka, B R; Hebron, D E; Robischon, S J ^[1]; Peyton, B P ^[2]

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1. Sandia National Laboratories, Albuquerque, New Mexico, 87185 (United States)
2. Ktech Corporation, 901 Pennsylvania Avenue, N. E., Albuquerque, New Mexico 87110 (United States)

A time-resolved pinhole camera has been constructed to diagnose flash x-ray bremsstrahlung sources with end-point energies of [similar to]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 [similar to]18 nC/R at 1.1 MeV. The temporal resolution is [similar to]5 ns, and the spatial resolution in the source plane is [similar to]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.

• DOE Contract Number: AC04-76DP00789
• OSTI ID: 7045143
• Journal Information: Review of Scientific Instruments; (United States), Vol. 65:6; ISSN 0034-6748
• Country of Publication: United States
• Language: English

Related Subjects

46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
X-RAY DETECTION
PLASTIC SCINTILLATION DETECTORS
BREMSSTRAHLUNG
CAMERAS
MARX GENERATORS
PHOTOMULTIPLIERS
SPATIAL RESOLUTION
TIME RESOLUTION
X-RAY SOURCES
DETECTION
ELECTROMAGNETIC RADIATION
ELECTRONIC EQUIPMENT
EQUIPMENT
MEASURING INSTRUMENTS
PHOTOTUBES
POWER SUPPLIES
RADIATION DETECTION
RADIATION DETECTORS
RADIATION SOURCES
RADIATIONS
RESOLUTION
SCINTILLATION COUNTERS
SOLID SCINTILLATION DETECTORS
TIMING PROPERTIES
X-RAY EQUIPMENT
440101* - Radiation Instrumentation- General Detectors or Monitors & Radiometric Instruments