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Proceedings Paper

Monitoring the stability of thin and medium back-up filters of the Newton-XMM EPIC camera
Author(s): Marco Barbera; Alfonso Collura; Marinella A. Artale; Salvatore Varisco; Giovanni Peres; Salvatore Sciortino; Salvatore Serio; Gabriele E. Villa
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Paper Abstract

We are conducting a measurement program on back-up filters of the XMM-Newton EPIC camera aimed at monitoring possible aging effects during the mission lifetime. One thin and one medium EPIC back-up filters have been stored since 1997 in an environment similar to that one of the flight filters (dry nitrogen box before launch, high vacuum after launch). The transmission of the two filters has been measured periodically in the 1900-10000 angstrom wavelength range where effects of aging would be clearly evident. The preliminary results, after 5 years of monitoring, show that a slight aging effect has occurred on both filters which, however, has no significant impact onto the EPIC calibration for the correct analysis of the X-ray astrophysical observations.

Paper Details

Date Published: 11 March 2003
PDF: 6 pages
Proc. SPIE 4851, X-Ray and Gamma-Ray Telescopes and Instruments for Astronomy, (11 March 2003); doi: 10.1117/12.461592
Show Author Affiliations
Marco Barbera, Osservatorio Astronomico di Palermo (Italy)
Alfonso Collura, IASF-CNR (Italy)
Osservatorio Astronomico di Palermo (Italy)
Marinella A. Artale, Osservatorio Astronomico di Palermo (Italy)
Salvatore Varisco, Osservatorio Astronomico di Palermo (Italy)
Giovanni Peres, Osservatorio Astronomico di Palermo (Italy)
Salvatore Sciortino, Osservatorio Astronomico di Palermo (Italy)
Salvatore Serio, Univ. degli Studi di Palermo (Italy)
Osservatorio Astronomico di Palermo (Italy)
Gabriele E. Villa, IASF-CNR (Italy)

Published in SPIE Proceedings Vol. 4851:
X-Ray and Gamma-Ray Telescopes and Instruments for Astronomy
Joachim E. Truemper; Harvey D. Tananbaum, Editor(s)

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