High dynamic range CdTe mixed-mode pixel array detector (MM-PAD) for kilohertz imaging of hard x-rays

Hugh T. Philipp; Mark W. Tate; Katherine S. Shanks; Prafull Purohit; Sol M. Gruner

doi:10.1088/1748-0221/15/06/P06025

High dynamic range CdTe mixed-mode pixel array detector (MM-PAD) for kilohertz imaging of hard x-rays

Instrumentation and Detectors 2020-08-26 v3

Authors: Hugh T. Philipp , Mark W. Tate , Katherine S. Shanks , Prafull Purohit , Sol M. Gruner

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Abstract

A hard x-ray, high-speed, high dynamic range scientific x-ray imager is described. The imager is based on the mixed-mode pixel array detector (MM-PAD) readout chip coupled to a 750 micron thick cadmium telluride (CdTe) sensor. The full imager is a 2 x 3 tiled array of MM-PAD sensor/readout chip hybrids. CdTe improves detection for high energy x-rays as compared to silicon sensors, enabling efficient x-ray imaging to extend to >100 keV. The detector is capable of 1 kHz imaging and in-pixel circuitry has been designed to allow for well depths of greater than 4 x 10^{6} 80 keV x-rays. A charge integrating front-end allows for quantitative measurement of high flux x-ray images beyond the capabilities of photon counting detectors. Detector performance is summarized and experimental measurements are presented.

Keywords

particle detector detector readout electronics

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@article{arxiv.2004.03421,
  title  = {High dynamic range CdTe mixed-mode pixel array detector (MM-PAD) for kilohertz imaging of hard x-rays},
  author = {Hugh T. Philipp and Mark W. Tate and Katherine S. Shanks and Prafull Purohit and Sol M. Gruner},
  journal= {arXiv preprint arXiv:2004.03421},
  year   = {2020}
}

High dynamic range CdTe mixed-mode pixel array detector (MM-PAD) for kilohertz imaging of hard x-rays

Abstract

Keywords

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