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EURECA: European-Japanese Microcalorimeter Array |
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| Authors: | P de Korte J Anquita F Bakker X Barcons P Bastia J Beyer D Boersma F Briones M Bruijn J Bussons A Camòn F Carrera M Ceballos L Colasanti D Drung L Fabrega L Ferrari F Gatti R Gonzalez-Arrabal L Gottardi W Hajdas P Helistö J W den Herder H Hoevers Y Ishisaki M Kiviranta J van der Kuur C Macculi A Mchedlishvili K Mitsuda B Monna R Mossel T Ohashi S Pantali M Parra L Piro R Rohlfs J Sésé Y Takei G Torrioli H van Weers N Yamasaki |
| Affiliation: | (1) SRON Netherlands Institute for Space Research, Sorbonnelaan 2, 3584 CA Utrecht, Netherlands;(2) IMM-CSIC, Madrid, Spain;(3) IFCA, Santander, Spain;(4) University of Murcia, Murcia, Spain;(5) IMCA, Zaragoza, Spain;(6) INA, Zaragoza, Spain;(7) IMM-CSIC, Barcelona, Spain;(8) PSI, Villigen, Switzerland;(9) INFN/University of Genua, Genua, Italy;(10) Thales Alenia Spazio, Milano, Italy;(11) IASF/INAF, Rome, Italy;(12) IFN-CNR Rome, Rome, Italy;(13) VTT-Sensors, Espoo, Finland;(14) PTB, Berlin, Germany;(15) Tokyo Metropolitan University, Tokyo, Japan;(16) ISAS/JAXA, Tokyo, Japan;(17) Systematic Design B.V., Delft, Netherlands;(18) ISDC, Versoix, Switzerland |
| Abstract: | The EURECA project aims to demonstrate technological readiness of a micro-calorimeter array for application in future X-ray astronomy missions, like Constellation-X, EDGE, and XEUS. The prototype instrument consists of a 5×5 pixel array of TES-based micro-calorimeters read out by two SQUID-amplifier channels using frequency-domain-multiplexing (FDM) with digital base-band feedback. The detector array is cooled by a cryogen-free cryostat consisting of a pulse tube cooler and a two stage ADR. Initial tests of the system at the PTB beam line of the BESSY synchrotron showed stable performance and an X-ray energy resolution of 1.5 eV at 250 eV for read-out of one TES-pixel only. Next step is deployment of FDM to read-out the full array. Full performance demonstration is expected end 2008. |
| Keywords: | X-ray microcalorimeters Transition edge sensors Frequency-domain-multiplexing |
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