Characterization of a quadrant diamond transmission X-ray detector including a precise determination of the mean electron-hole pair creation energy

Journal of Synchrotron Radiation
Jeffrey W KeisterMichael Krumrey

Abstract

Precise monitoring of the incoming photon flux is crucial for many experiments using synchrotron radiation. For photon energies above a few keV, thin semiconductor photodiodes can be operated in transmission for this purpose. Diamond is a particularly attractive material as a result of its low absorption. The responsivity of a state-of-the art diamond quadrant transmission detector has been determined, with relative uncertainties below 1% by direct calibration against an electrical substitution radiometer. From these data and the measured transmittance, the thickness of the involved layers as well as the mean electron-hole pair creation energy were determined, the latter with an unprecedented relative uncertainty of 1%. The linearity and X-ray scattering properties of the device are also described.

References

Mar 11, 1999·Physics in Medicine and Biology·J H Hubbell
Oct 27, 2010·Journal of Synchrotron Radiation·Jen BohonJohn Smedley
Apr 20, 2012·Journal of Synchrotron Radiation·Erik M MullerAnnie Héroux
Nov 5, 2013·The Review of Scientific Instruments·B RavelJ Smedley
Feb 11, 2014·Journal of Extracellular Vesicles·Zoltán VargaRienk Nieuwland
Oct 25, 2014·Journal of Synchrotron Radiation·Kewin DesjardinsJohn Morse

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Citations

Mar 3, 2021·Journal of Synchrotron Radiation·Dieter K SchneiderMartin R Fuchs

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