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Transition-Edge Sensor Pixel Parameter Design of the Microcalorimeter Array for the X-Ray Integral Field Unit on AthenaThe focal plane of the X-ray integral field unit (X-IFU) for ESA's Athena X-ray observatory will consist of approximately 4000 transition edge sensor (TES) x-ray microcalorimeters optimized for the energy range of 0.2 to 12 kiloelectronvolts. The instrument will provide unprecedented spectral resolution of approximately 2.5 electronvolts at energies of up to 7 kiloelectronvolts and will accommodate photon fluxes of 1 milliCrab (90 counts per second) for point source observations. The baseline configuration is a uniform large pixel array (LPA) of 4.28 arcseconds pixels that is read out using frequency domain multiplexing (FDM). However, an alternative configuration under study incorporates an 18 by × 18 small pixel array (SPA) of 2 arcseconds pixels in the central approximately 36 arcseconds region. This hybrid array configuration could be designed to accommodate higher fluxes of up to 10 milliCrabs (900 counts per second) or alternately for improved spectral performance (less than 1.5 electronvolts) at low count-rates. In this paper we report on the TES pixel designs that are being optimized to meet these proposed LPA and SPA configurations. In particular we describe details of how important TES parameters are chosen to meet the specific mission criteria such as energy resolution, count-rate and quantum efficiency, and highlight performance trade-offs between designs. The basis of the pixel parameter selection is discussed in the context of existing TES arrays that are being developed for solar and x-ray astronomy applications. We describe the latest results on DC biased diagnostic arrays as well as large format kilo-pixel arrays and discuss the technical challenges associated with integrating different array types on to a single detector die.
Document ID
20180002883
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Smith, S. J. (Maryland Univ. Baltimore County Baltimore, MD, United States)
Adams, J. S. (Maryland Univ. Baltimore County Baltimore, MD, United States)
Bandler, S. R. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Betancourt-Martinez, G. L. (Maryland Univ. College Park, MD, United States)
Chervenak, J. A. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Chiao, M. P. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Eckart, M. E. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Finkbeiner, F. M. (Wyle Information Systems, LLC McLean, VA, United States)
Kelley, R. L. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Kilbourne, C. A. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Miniussi, A. R. (Universities Space Research Association Greenbelt, MD, United States)
Porter, F. S. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Sadleir, J. E. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Sakai, K. (Universities Space Research Association Columbia, MD, United States)
Wakeham, N. A. (Universities Space Research Association Greenbelt, MD, United States)
Wassell, E. J. (Stinger Ghaffarian Technologies, Inc. Greenbelt, MD, United States)
Yoon, W. (Universities Space Research Association Greenbelt, MD, United States)
Bennett, D. A. (National Inst. of Standards and Technology Boulder, CO, United States)
Doriese, W. B. (National Inst. of Standards and Technology Boulder, CO, United States)
Fowler, J. W. (National Inst. of Standards and Technology Boulder, CO, United States)
Hilton, G. C. (National Inst. of Standards and Technology Boulder, CO, United States)
Morgan, K. M. (National Inst. of Standards and Technology Boulder, CO, United States)
Pappas, C. G. (National Inst. of Standards and Technology Boulder, CO, United States)
Reintsema, C. N. (National Inst. of Standards and Technology Boulder, CO, United States)
Swetz, D. S. (National Inst. of Standards and Technology Boulder, CO, United States)
Ullom, J. N. (National Inst. of Standards and Technology Boulder, CO, United States)
Irwin, K. D. (Stanford Univ. Palo Alto, CA, United States)
Akamatsu, H. (SRON Netherlands Institute for Space Research Utrecht, Netherlands)
Gottardi, L. (SRON Netherlands Institute for Space Research Utrecht, Netherlands)
den Hartog, R. (SRON Netherlands Institute for Space Research Utrecht, Netherlands)
Jackson, B. D. (Space Research Organization Netherlands Groningen, Netherlands)
van der Kuur, J. (SRON Netherlands Institute for Space Research Utrecht, Netherlands)
Barret, D. (Research Inst. in Astrophysics and Planetology (IRAP) Toulouse, France)
Peille, P. (Research Inst. in Astrophysics and Planetology (IRAP) Toulouse, France)
Date Acquired
May 16, 2018
Publication Date
July 20, 2016
Publication Information
Publication: Proceedings of SPIE: Space Telescopes and Instrumentation 2016: Ultraviolet to Gamma Ray
Volume: 9905
ISSN: 0277-786X
ISBN: 0277-786X
Subject Category
Astrophysics
Report/Patent Number
GSFC-E-DAA-TN55360
Meeting Information
SPIE Astronomical Telescopes + Instrumentation, 2016(Edinburgh)
Funding Number(s)
CONTRACT_GRANT: 80GSFC17M0002
CONTRACT_GRANT: 80GSFC17M0002
Distribution Limits
Public
Copyright
Other