The Cryo-Harness Technology for the Athena X-IFU Detection Chain

CNES (French Space Agency) is in charge of the development of the X-ray Integral Field Unit (X-IFU) instrument for Athena, the high resolution X-ray spectrometer of the ESA Athena X-ray Observatory. X-IFU will deliver spectra from 0.2 to 12 keV with a spectral resolution in the range of 2.5 eV up to...

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Bibliographic Details
Published in:Journal of low temperature physics Vol. 215; no. 3-4; pp. 177 - 183
Main Authors: Geoffray, H., Adams, J., Fossecave, H., Cucchetti, E., Bellouard, E., Peille, P., Daniel, C., Maisonnave, O., Guilhem, E., Jolly, A., Maussang, I., Jackon, B., Bandler, S., Doriese, B., Durkin, M., van der Kuur, J., van Leeuwen, B. J., Kiviranta, M., Prêle, D., Ravera, L., Parot, Y.
Format: Journal Article
Language:English
Published: New York Springer US 2024
Springer Nature B.V
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Summary:CNES (French Space Agency) is in charge of the development of the X-ray Integral Field Unit (X-IFU) instrument for Athena, the high resolution X-ray spectrometer of the ESA Athena X-ray Observatory. X-IFU will deliver spectra from 0.2 to 12 keV with a spectral resolution in the range of 2.5 eV up to 7 keV on a 5′′ pixels, with a field of view > 4′ equivalent diameter. The main sensor array detection chain is a key part of the instrument, being by far the main contributor to its performance. It involves major partners: NASA GFSC, NIST, SRON, VTT, APC, and IRAP. The cryo-harness interconnecting the Focal Plane Assembly cold interface to the Warm Front End Electronics is under CNES responsibility. The different technical solutions are the loom technology and the shielded twisted pair technology. Characterizations have been performed on breadboards to assess the crosstalk performances for each solution. The results of these analysis are a driver to perform the trade-off between the available cryo-harness technologies.
ISSN:0022-2291
1573-7357
DOI:10.1007/s10909-024-03082-5