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.
@article{arxiv.2005.05395,
title = {On low-energy tail distortions in the detector responsefunction of x-ray microcalorimeter spectrometers},
author = {G. C. O'Neil and P. Szypryt and E. Takacs and J. N. Tan and S. W. Buechele and A. S. Naing and Y. I. Joe and D. Swetz and D. R. Schmidt and W. B. Doriese and J. D. Gard and C. D. Reintsema and J. N. Ullom and J. S. Villarrubia and Yu. Ralchenko},
journal= {arXiv preprint arXiv:2005.05395},
year = {2020}
}