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Title: The European Photon Imaging Camera on XMM-Newton: the MOS cameras
Authors: Turner, Martin J. L.
Abbey, A. F.
Arnaud, M.
Balasini, M.
Barbera, M.
Belsole, E.
Bennie, P. J.
Bernard, J. P.
Bignami, G. F.
Boer, M.
Briel, U.
Butler, I.
Cara, C.
Chabaud, C.
Cole, Richard E.
Collura, A.
Conte, M.
Cros, A.
Denby, M.
Dhez, P.
Di Coco, G.
Dowson, J.
Ferrando, P.
Ghizzardi, S.
Gianotti, F.
Goodall, C. V.
Gretton, L.
Griffiths, R. G.
Hainaut, O.
Hochedez, J. F.
Holland, Andrew D.
Jourdain, E.
Kendziorra, E.
Lagostina, A.
Lainé, R.
La Palombara, N.
Lortholary, M.
Lumb, D.
Marty, P.
Molendi, S.
Pigot, C.
Poindron, E.
Pounds, Kenneth A.
Reeves, J. N.
Reppin, C.
Rothenflug, R.
Salvetat, P.
Sauvageot, J. L.
Schmitt, D.
Sembay, S.
Short, A. D. T.
Spragg, J.
Stephen, J.
Strüder, L.
Tiengo, A.
Trifoglio, M.
Trümper, J.
Vercellone, S.
Vigroux, L.
Villa, G.
Ward, M. J.
Whitehead, S.
Zonca, E.
First Published: 2001
Publisher: EDP Sciences
Citation: Astronomy and Astrophysics, 2001, 365, L27-L35
Abstract: The EPIC focal plane imaging spectrometers on XMM-Newton use CCDs to record the images and spectra of celestial X-ray sources focused by the three X-ray mirrors. There is one camera at the focus of each mirror; two of the cameras contain seven MOS CCDs, while the third uses twelve PN CCDs, defining a circular field of view of 30' diameter in each case. The CCDs were specially developed for EPIC, and combine high quality imaging with spectral resolution close to the Fano limit. A filter wheel carrying three kinds of X-ray transparent light blocking filter, a fully closed, and a fully open position, is fitted to each EPIC instrument. The CCDs are cooled passively and are under full closed loop thermal control. A radio-active source is fitted for internal calibration. Data are processed on-board to save telemetry by removing cosmic ray tracks, and generating X-ray event files; a variety of different instrument modes are available to increase the dynamic range of the instrument and to enable fast timing. The instruments were calibrated using laboratory X-ray beams, and synchrotron generated monochromatic X-ray beams before launch; in-orbit calibration makes use of a variety of celestial X-ray targets. The current calibration is better than 10% over the entire energy range of 0.2 to 10 keV. All three instruments survived launch and are performing nominally in orbit. In particular full field-of-view coverage is available, all electronic modes work, and the energy resolution is close to pre-launch values. Radiation damage is well within pre-launch predictions and does not yet impact on the energy resolution. The scientific results from EPIC amply fulfil pre-launch expectations.
DOI Link: 10.1051/0004-6361:20000087
ISSN: 0004-6361
eISSN: 1432-0746
Version: Publisher PDF
Status: Peer-reviewed
Type: Article
Rights: © The European Southern Observatory (ESO) 2001. Deposited with permission of the publisher.
Appears in Collections:Published Articles, Dept. of Physics and Astronomy

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