An artist’s impression of the INTEGRAL spacecraft. At the front is the SPI instrument with its circular coded mask and behind the square mask of the IBIS instrument. JEM-X, the X-ray monitor, is located between these two instruments with the OMC (Optical Monitoring Camera) to the side. (Image credit ESA).
OMC is a refracting telescope with a field-of-view of ~5 degrees and a cooled 1024 x 1024 pixel CCD in the focal plane, capable of imaging down to m~19.
MSSL’s contributions are :-
- Managing the CCD procurement
- Characterisation of CCDs
- Design, fabrication and testing of readout electronics (ROE) consisting of clock sequencer, bias supplies, analogue electronics including correlated double sampler, ADC and digital interface to data processing electronics, power switching
- Design, fabrication and testing of a PC-based EGSE to run the ROE and acquire, display and analyse the digital images for ground testing
The CCD is a Marconi CCD47-20 back-illuminated frame transfer device with a 1024 x 1024 pixel image area, on a custom invar plate mount.
The readout electronics are capable of running at 328 Kpixels/s with a readout noise of ~5e- RMS.