On low-energy tail distortions in the detector responsefunction of x-ray microcalorimeter spectrometers

G. C. O'Neil; P. Szypryt; E. Takacs; J. N. Tan; S. W. Buechele; A. S. Naing; Y. I. Joe; D. Swetz; D. R. Schmidt; W. B. Doriese; J. D. Gard; C. D. Reintsema; J. N. Ullom; J. S. Villarrubia; Yu. Ralchenko

doi:10.1007/s10909-019-02270-y

arXiv · 2005.05395

On low-energy tail distortions in the detector responsefunction of x-ray microcalorimeter spectrometers

G. C. O'Neil·P. Szypryt·E. Takacs·J. N. Tan·S. W. Buechele·A. S. Naing·Y. I. Joe·D. Swetz·D. R. Schmidt·W. B. Doriese·J. D. Gard·C. D. Reintsema·J. N. Ullom·J. S. Villarrubia·Yu. Ralchenko

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Abstract

We use narrow spectral lines from the x-ray spectra of various highlycharged ions to measure low-energy tail-like deviations from a Gaussian responsefunction in a microcalorimter x-ray spectrometer with Au absorbers at energiesfrom 650 eV to 3320 eV. We review the literature on low energy tails in othermicrocalorimter x-ray spectrometers and present a model that explains all thereviewed tail fraction measurements. In this model a low energy tail arises fromthe combination of electron escape and energy trapping associated with Bi x-rayabsorbers.

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G. C. O'Neil, P. Szypryt, E. Takacs, J. N. Tan, S. W. Buechele, A. S. Naing, Y. I. Joe, D. Swetz, D. R. Schmidt, W. B. Doriese, J. D. Gard, C. D. Reintsema, J. N. Ullom, J. S. Villarrubia, Yu. Ralchenko. 2020-05-11. On low-energy tail distortions in the detector responsefunction of x-ray microcalorimeter spectrometers. https://doi.org/10.1007/s10909-019-02270-y

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