Timepix: Influence of temperature and vacuum on equalisation of x-ray detector and its verification

Martin Urban; Ondrej Nentvich; Daniela Doubravova; Ondrej Petr; Adolf Inneman; Rene Hudec; Ladislav Sieger

doi:10.1117/12.2528503

9 September 2019 Timepix: Influence of temperature and vacuum on equalisation of x-ray detector and its verification

Martin Urban, Ondrej Nentvich, Daniela Doubravova, Ondrej Petr, Adolf Inneman, Rene Hudec, Ladislav Sieger

Proceedings Volume 11118, UV, X-Ray, and Gamma-Ray Space Instrumentation for Astronomy XXI; 111181H (2019) https://doi.org/10.1117/12.2528503
Event: SPIE Optical Engineering + Applications, 2019, San Diego, California, United States

Abstract

The thermal dependence of the semiconductor detector is one of the critical properties. This manuscript describes changes in the threshold scans, equalization and its verification for the particle counting pixel detector Timepix. The Timepix detector family has great potential for use not only in space, i.e. for small satellite (CubeSat) missions, but also in many other areas like medicine, material testing or particle colliders (i.e. Large Hadron Collider). In this case, several experiments were performed with the Timepix detector under the vacuum conditions as well as ambient conditions with the thermal stabilization at several temperatures in a range from -15^oC to +80^oC. This paper describes the early experimental results of the chip temperature dependence. The detector equalization and validity of the original equalization dependently on different temperatures is examined. The changes in the detector could cause the errors and shifts of the detection limit for low-energies.

Citation Download Citation

Martin Urban, Ondrej Nentvich, Daniela Doubravova, Ondrej Petr, Adolf Inneman, Rene Hudec, and Ladislav Sieger "Timepix: Influence of temperature and vacuum on equalisation of x-ray detector and its verification", Proc. SPIE 11118, UV, X-Ray, and Gamma-Ray Space Instrumentation for Astronomy XXI, 111181H (9 September 2019); https://doi.org/10.1117/12.2528503

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