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http://hdl.handle.net/20.500.12386/34812
Title: | Temperature effects on the performances of the ATHENA X-IFU thermal filters | Authors: | BARBERA, Marco LO CICERO, UGO SCIORTINO, LUISA Magnano, Elena Píš, Igor CIARAVELLA, Angela COLLURA, Alfonso JIMENEZ ESCOBAR, Antonio Levantino, Matteo Nuzzo, Flavio |
Issue Date: | 2016 | Volume: | Space Telescopes and Instrumentation 2016: Ultraviolet to Gamma Ray | Editors: | den Herder, Jan-Willem A.; Takahashi, Tadayuki; Bautz, Marshall | Series: | PROCEEDINGS OF SPIE | Number: | 9905 | First Page: | 990560 | Abstract: | The X-Ray Integral Field Unit (X-IFU) detector on-board ATHENA is an array of TES micro-calorimeters that will operate at 50 mK. In the current investigated design, five thermal filters (TF) will be mounted on the cryostat shields to attenuate IR radiative load and avoid energy resolution degradation due to photon shot noise. Each filter consists of a thin polyimide film ( 50 nm thick) coated with aluminum ( 30 nm thick). Since the TF operate at different temperatures in the range 0.05-300 K, it is relevant to study how temperature affects their mechanical/optical performances (e.g. near edge absorption fine structures of the atomic elements in the filter material). Such results are crucial for the proper design of the filters as well as to establish the calibration program operating temperatures. We report the preliminary results of visual inspections performed on test filters of polyimide/Al at different pressure and temperature conditions, IR transmission measurements (1-15 μm) performed in the temperature range 10- 300 K, and X-ray Absorption Spectroscopy measurements (175-1650 eV) performed in the temperature range 130-300 K. | Note: | Copyright 2016 Society of PhotoOptical Instrumentation Engineers (SPIE). One print or electronic copy may be made for personal use only. Systematic reproduction and distribution, duplication of any material in this publication for a fee or for commercial purposes, and modification of the contents of the publication are prohibited. | Conference Name: | Space Telescopes and Instrumentation 2016: Ultraviolet to Gamma Ray | Conference Place: | Edinburgh, UK | Conference Date: | 26 June-1 July, 2016 | URI: | http://hdl.handle.net/20.500.12386/34812 | URL: | https://www.spiedigitallibrary.org/conference-proceedings-of-spie/9905/1/Temperature-effects-on-the-performances-of-the-ATHENA-X-IFU/10.1117/12.2232323.short https://api.elsevier.com/content/abstract/scopus_id/85003434277 |
ISSN: | 0277-786X | ISBN: | 9781510601895 | DOI: | 10.1117/12.2232323 | Bibcode ADS: | 2016SPIE.9905E..60B | Fulltext: | open |
Appears in Collections: | 3.01 Contributi in Atti di convegno |
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Barbera2016a - Temperature effects on the performances of the ATHENA X-IFU thermal filters.pdf | 2.38 MB | Adobe PDF | View/Open |
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