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Last modified: 22 August 2023
/ ciao4.15 / dictionary / qeu.html

QEU: Quantum Efficiency Uniformity

In the Chandra Calibration Database (CALDB), the quantum efficiency of the detectors is divided into:

  • the quantum efficiency (QE) file: a mean curve (vs. energy)
  • the QEU file: a map of the deviations across the face of the detector
/ ciao4.15 / dictionary / qeu.html