11 March 2003 MOS CCDs for the extended wide-field imager of XEUS
Author Affiliations +
XEUS is the post-XMM next generation x-ray observatory which is currently under study by ESA. The mission aims to image the x-ray early universe through the study of feint, high red-shift objects. To provide sufficient photons to enable spectroscopy on these distant objects requires a telescope collecting area greatly in excess of those in use today, and an x-ray optic with collecting area ~100x of XMM is ultimately envisaged. With a focal length of 50m, the plate scale of the optic is 6.5x that of XMM, which using existing focal plane technology will reduce the effective field of view to a few arc minutes. Cryogenic instrumentation, with detector sizes of a few mm can only be used for narrow field studies of target objects, and a wide field instrument is under consideration using a DEPFET pixel array to image out to a diameter of 5 arcminutes, requiring an array of dimension 70mm. Since the useful field of view of the XEUS optic will extend to a diameter of 30 arcminutes, the potential of the optic could be very under-utilized. Here we propose an extension to the wide field imager, the E-WFI, comprised of a ring array of CCDs which will increase the coverage of the focal plane, and greatly increase the serendipitous science resulting from the mission. Here we describe the first design concept for the E-WFI, and discuss the technical advancements in MOS CCD technology which will enhance the science of the mission.
© (2003) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Andrew D. Holland, Andrew D. Holland, Richard M. Ambrosi, Richard M. Ambrosi, Ian Hutchinson, Ian Hutchinson, J. Calafell, J. Calafell, Martin J. L. Turner, Martin J. L. Turner, David H. Lumb, David H. Lumb, Peter J. Pool, Peter J. Pool, } "MOS CCDs for the extended wide-field imager of XEUS", Proc. SPIE 4851, X-Ray and Gamma-Ray Telescopes and Instruments for Astronomy, (11 March 2003); doi: 10.1117/12.461731; https://doi.org/10.1117/12.461731


The NeXT mission
Proceedings of SPIE (June 14 2006)
Charge injection device detectors for x-ray imaging
Proceedings of SPIE (November 10 1994)
MOS CCDs for the EPIC on XMM
Proceedings of SPIE (October 30 1996)
MOS CCDs for the wide field imager on the XEUS...
Proceedings of SPIE (August 17 2005)

Back to Top