25 July 2014 Development of TES-based detectors array for the X-ray Integral Field Unit (X-IFU) on the future x-ray observatory ATHENA
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Abstract
We are developing transition-edge sensor (TES)-based microcalorimeters for the X-ray Integral Field Unit (XIFU) of the future European X-Ray Observatory Athena. The microcalorimeters are based on TiAu TESs coupled to 250μm squared, AuBi absorbers. We designed and fabricated devices with different contact geometries between the absorber and the TES to optimise the detector performance and with different wiring topology to mitigate the self-magnetic field. The design is tailored to optimise the performance under Frequency Domain Multiplexing. In this paper we review the main design feature of the pixels array and we report on the performance of the 18 channels, 2-5MHz frequency domain multiplexer that will be used to characterised the detector array.
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L. Gottardi, L. Gottardi, H. Akamatsu, H. Akamatsu, D. Barret, D. Barret, M. P. Bruijn, M. P. Bruijn, R. H. den Hartog, R. H. den Hartog, J. -W. den Herder, J. -W. den Herder, H. F. C. Hoevers, H. F. C. Hoevers, M. Kiviranta, M. Kiviranta, J. van der Kuur, J. van der Kuur, A. J. van der Linden, A. J. van der Linden, B. D. Jackson, B. D. Jackson, M. Jambunathan, M. Jambunathan, M. L. Ridder, M. L. Ridder, } "Development of TES-based detectors array for the X-ray Integral Field Unit (X-IFU) on the future x-ray observatory ATHENA", Proc. SPIE 9144, Space Telescopes and Instrumentation 2014: Ultraviolet to Gamma Ray, 91442M (25 July 2014); doi: 10.1117/12.2056920; https://doi.org/10.1117/12.2056920
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