Bonn 2020 – wissenschaftliches Programm
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ST: Fachverband Strahlen- und Medizinphysik
ST 1: Radiation monitoring and dosimetry I
ST 1.1: Vortrag
Dienstag, 31. März 2020, 11:00–11:15, H-HS II
Measurement of the radiation quality of a X-ray Source using ATLAS Pixel detectors — •Simon Jansen1, Kevin Kröninger1, Isabelle Schilling1, Jörg Walbersloh2, and Jens Weingarten1 — 1TU Dortmund, Dortmund, Deutschland — 2Materialprüfungsamt NRW, Dortmund, Deutschland
ISO and DIN standards define various standard X-ray spectra (so-called
"qualities") for the purpose of calibrating dosemeters at low photon
energies.
To calibrate the X-ray facility at the Materialprüfungsamt NRW
in Dortmund and verify the spectra with respect to the ISO and DIN
standards, the spectrum of the X-ray facility is measured using an ATLAS
Pixel detector while varying the voltage and current of the X-ray tube,
as well as material and thickness of a set of absorbers.
With respect to a traditional spectroscopy setup using Germanium
detectors the advantage of the proposed setup is that the detector is
very mobile and does not need to be cooled, reducing the overhead for a
measurement and thus allowing regular recalibrations of the X-ray facility.
The talk will introduce the experimental setup and first spectroscopic
result.