Characterizing x-ray transmission through filters used in high energy density physics diagnostics

Dataset · Thu Jun 24 04:00:00 EDT 2021

DOI:https://doi.org/10.7910/DVN/ROSRYW· OSTI ID:1887950

Pearcy, J. ^[1]; Kabadi, N.; Birkel, A.; Adrian, P.; Lahmann, B.; Reichelt, B.; Johnson, T. M.; Sutcliffe, G.; Kunimune, J.; Gatu-Johnson, M.; Bose, A.; Li, C. K.

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1. OSTI

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.

• Research Organization: Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States). Plasma Science and Fusion Center
• Sponsoring Organization: USDOE National Nuclear Security Administration (NNSA)
• DOE Contract Number: NA0003868
• OSTI ID: 1887950
• Country of Publication: United States
• Language: English