Energy Dependent Features of X-ray Signals in a GridPix Detector

Christoph Krieger; Jochen Kaminski; Theodoros Vafeiadis; Klaus Desch

doi:10.1016/j.nima.2018.02.109

Energy Dependent Features of X-ray Signals in a GridPix Detector

Instrumentation and Detectors 2018-04-18 v1

Authors: Christoph Krieger , Jochen Kaminski , Theodoros Vafeiadis , Klaus Desch

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Abstract

We report on the calibration of an argon/isobutane (97.7 %/2.3 %)-filled GridPix detector with soft X-rays (277 eV to 8 keV) using the variable energy X-ray source of the CAST Detector Lab at CERN. We study the linearity and energy resolution of the detector using both the number of hit pixels and the total measured charge as energy measures. For the latter, the energy resolution {\sigma}_E/E is better than 10 % (20 %) for energies above 2 keV (0.5 keV). Several characteristics of the recorded events are studied.

Keywords

GridPix detector soft X-ray energy resolution calibration hit pixels gas detector

Cite

@article{arxiv.1709.07631,
  title  = {Energy Dependent Features of X-ray Signals in a GridPix Detector},
  author = {Christoph Krieger and Jochen Kaminski and Theodoros Vafeiadis and Klaus Desch},
  journal= {arXiv preprint arXiv:1709.07631},
  year   = {2018}
}

Comments

19 pages, 10 figures, 5 tables

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