Calibration of bremsstrahlung prefogged Kodak RAR 2492 film

Journal Article · Mon Oct 01 00:00:00 EDT 1990 · Review of Scientific Instruments; (USA)

DOI:https://doi.org/10.1063/1.1141825· OSTI ID:6135290

Gorzen, D F; Armentrout, C; Burek, A; Bird, R; Geddes, J; Gerber, G ^[1]; Rockett, P D ^[2]

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1. KMS Fusion, Inc., Ann Arbor, MI (USA)
2. Sandia National Laboratory, Albuquerque, NM (USA)

High-energy background radiation from PBFA II at Sandia National Laboratory introduces uncertainty regarding the effect of background fogging on the sensitivity of the x-ray film at soft x-ray energies. We have performed a calibration to determine how the sensitivity of the Kodak RAR 2492 film is affected by high-energy background radiation. To simulate the background radiation the film was fogged to various densities using a 10 keV bremsstrahlung spectrum. The film was then exposed to soft x-ray emission lines of Al {ital K}{alpha} and Ti {ital K}{alpha} selected by Bragg reflection from an electron bombardment source. The intensity of the x-ray flux was continuously monitored with a Si(Li) detector to eliminate error due to drift of the x-ray source's intensity. A microdensitometer with matched objectives was used to find the specular density of the exposed film. The results of the calibration are presented in the form of {ital D} vs log {ital l} for the various densities of the bremmstrahlung prefog exposures.

• DOE Contract Number: AC03-87DP10560
• OSTI ID: 6135290
• Journal Information: Review of Scientific Instruments; (USA), Vol. 61:10; ISSN 0034-6748
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
PARTICLE BEAM FUSION ACCELERATOR
BACKGROUND RADIATION
PLASMA DIAGNOSTICS
X-RAY DETECTION
BREMSSTRAHLUNG
CALIBRATION
DATA ACQUISITION
PHOTOGRAPHIC FILM DETECTORS
ACCELERATORS
DETECTION
ELECTROMAGNETIC RADIATION
MEASURING INSTRUMENTS
RADIATION DETECTION
RADIATION DETECTORS
RADIATIONS
700102* - Fusion Energy- Plasma Research- Diagnostics