Using Poisson-regularized inversion of Bremsstrahlung emission to extract full electron energy distribution functions from x-ray pulse-height detector data [electronic resource].
- Washington, D.C. : United States. Dept. of Energy, 2018.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy
- Physical Description:
- Article numbers 025,222 : digital, PDF file
- Additional Creators:
- Princeton University. Plasma Physics Laboratory
United States. Department of Energy
United States. Department of Energy. Office of Scientific and Technical Information
- We measured Electron Energy Distribution Functions (EEDFs) from below 200 eV to over 8 keV and spanning five orders-of-magnitude in intensity, produced in a low-power, RF-heated, tandem mirror discharge in the PFRC-II apparatus. The EEDF was obtained from the x-ray energy distribution function (XEDF) using a novel Poisson-regularized spectrum inversion algorithm applied to pulse-height spectra that included both Bremsstrahlung and line emissions. The XEDF was measured using a specially calibrated Amptek Silicon Drift Detector (SDD) pulse-height system with 125 eV FWHM at 5.9 keV. Finally, the algorithm is found to out-perform current leading x-ray inversion algorithms when the error due to counting statistics is high.
- Published through SciTech Connect.
AIP Advances 8 2 ISSN 2158-3226 AM
C. Swanson; P. Jandovitz; S. A. Cohen.
- Funding Information:
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