Cautions in using x-ray measurements derived from broad spectral response functions to determine the peak voltage of flash bremsstrahlung sources

Journal Article · Thu Oct 01 00:00:00 EDT 1992 · Review of Scientific Instruments; (United States)

DOI:https://doi.org/10.1063/1.1143564· OSTI ID:7153913

Fehl, D L; Baldwin, G T; Lorence, L J ^[1]

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1. Sandia National Laboratories, Albuquerque, New Mexico 87185 (United States)

Because a direct measurement of the voltage ({ital V}) in pulsed power bremsstrahlung sources can be difficult, the energy spectrum of x rays emitted is sometimes used to infer {ital V}. Both the voltage and current in such sources vary with time. Moreover, for modern x-ray simulators with multiple cathodes, multiple voltages may exist simultaneously. We demonstrate here how such sources lead to systematic errors in several types of simple-to-field x-ray voltage measurements, especially those with broad spectral response functions, when calibrated against constant-potential bremsstrahlung spectra.

• DOE Contract Number: AC04-76DP00789
• OSTI ID: 7153913
• Journal Information: Review of Scientific Instruments; (United States), Journal Name: Review of Scientific Instruments; (United States) Vol. 63:10; ISSN RSINA; ISSN 0034-6748
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700320* -- Plasma Diagnostic Techniques & Instrumentation-- (1992-)
BREMSSTRAHLUNG
ELECTROMAGNETIC RADIATION
EQUIPMENT
FUNCTIONS
NATIONAL ORGANIZATIONS
RADIATION SOURCES
RADIATIONS
RESPONSE FUNCTIONS
SANDIA LABORATORIES
SPECTRAL FUNCTIONS
US AEC
US DOE
US ERDA
US ORGANIZATIONS
X-RAY EQUIPMENT
X-RAY SOURCES