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In-orbit calibration activities of the XMM-Newton EPIC cameras

2000; SPIE; Volume: 4140; Linguagem: Inglês

10.1117/12.409123

1996-756X

David H. Lumb, P. Gondoin, Martin Turner, A. F. Abbey, P. J. Bennie, Steve Sembay, Gareth Griffiths, P. Ferrando, J.‐L. Sauvageot, E. Belsole, C. Pigot, U. G. Briel, K. Dennerl, F. Haberl, Gisela Hartner, E. Kendziorra, Marcus Kirsch, M. Kuster, S. Molendi, Gabriele E. Villa, A. Tiengo, A. Lagostina, E. Serpell,

Advanced Measurement and Metrology Techniques

The combined effective area of the three EPIC cameras of the XMM-Newton Observatory, offers the greatest collecting power ever deployed in an X-ray imaging system. The resulting potential for high sensitivity, broad-band spectroscopic investigations demands an accurate calibration. This work summarizes the initial in-orbit calibration activities that address these requirements. We highlight the first steps towards effective area determination, which includes the maintenance of gain CTI calibration to allow accurate energy determination. We discuss observations concerning the timing and count-rate capabilities of the detectors. Finally we note some performance implications of the optical blocking filters.