Characterizing x-ray transmission through filters used in high energy density physics diagnostics
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Author(s)
Pearcy, J.
Kabadi, N.
Birkel, A.
Adrian, P.
Lahmann, B.
Reichelt, B.
Johnson, T.M.
Sutcliffe, G.
Kunimune, Justin H.
Gatu Johnson, Maria
Date Issued
December 2020
Journal
Review of Scientific Instruments
Publisher
AIP
Abstract
We report on the design and implementation of a new system used to characterize the energy-dependent x-ray transmission curve, Θ(E), through filters used in high-energy density physics diagnostics. Using an Amptek X-123-CdTe x-ray spectrometer together with a partially depleted silicon surface barrier detector, both the energy spectrum and total emission of an x-ray source have been accurately measured. By coupling these detectors with a custom PROTO-XRD x-ray source with interchangeable cathodes, accurate characterizations of Θ(E) for filters of varying materials and thicknesses have been obtained. The validity of the technique has been confirmed by accurately reproducing areal densities for high-purity filters with known x-ray transmission properties. In this paper, the experimental setup is described and the results of absorption calibrations performed on a variety of different filters are presented.
Description
Submitted for publication in Review of Scientific Instruments
MIT Department
Massachusetts Institute of Technology. Plasma Science and Fusion Center
Persistent DSpace Link
DOI of Published Version
doi.org/10.1063/5.0043770
https://doi.org/10.1063/5.0043770
