A Highly Linear Calibration Metric for TES X-ray Microcalorimeters

  title={A Highly Linear Calibration Metric for TES X-ray Microcalorimeters},
  author={Christine G. Pappas and Joseph W. Fowler and Douglas A. Bennett and William Bertrand Doriese and Young Il Joe and Kelsey M. Morgan and Galen C. O’Neil and J. N. Ullom and Daniel S Swetz},
  journal={Journal of Low Temperature Physics},
Transition-edge sensor X-ray microcalorimeters are usually calibrated empirically, as the most widely used calibration metric, optimal filtered pulse height (OFPH), in general has an unknown dependence on photon energy, $$E_{\gamma }$$Eγ. Because the calibration function can only be measured at specific points where photons of a known energy can be produced, this unknown dependence of OFPH on $$E_{\gamma }$$Eγ leads to calibration errors and the need for time-intensive calibration measurements… 

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