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EPIC-pn spare camera chain: status and prospects
Eckhard Kendziorra Operations and Instrumentation Leicester 06.03.2012


Status
· EPEA, EPVC, EPCE are stored at Panter in Neuried · Harness stored at Panter · EPCH is stored at HLL · EPDH and EGSE stored at IFCTR (I assume)


What we need to properly operate EPIC-pn spare camera chain?
· · · · Vacuum chamber for camera head X-ray source inside vacuum chamber Cooling system for CCD All other boxes could be operated outside of vacuum vessel


Where could we integrate and operate EPIC-pn spare camera chain?
· MPE is totally busy with eROSITA
­ Panter and RЖsti are not available ­ Other vacuum chambers are occupied
~

· IAAT could partially do the job · Lab space ( 20 m2) and personnel (E.Ke & TBD) · BUT:
­ NO free vacuum chamber ­ NO free clean room, only clean benches ­ It does not make sense to operate

EPCH at IAAT


Heritage from last decade

Vacuum chamber and cooling system for one pn-CCD

pn-CCD (64 x 200 pixels)


Spare Quadrant Electronics (QE)

QE with original FS electronic boards, QE with connector for test CCD was used to operate pn-CCD


Two figures from UM


Proposed set-up (simplified)
EGSE EPDH EPVC EPCE EPEA
Breakout Box

QE


What can be done with this set-up
· All commands and housekeeping (HK) to/from
­ EPDH, EPVC, EPCE and EPEA ­ Upload of new software ­ Download of test patterns

· Operation of one quadrant
­ Command and HK of all CAMEX and CCD quadrant voltages ­ Switch on and of of CCD quadrant ­ Commanding of all readout modes


What can NOT be done
· NO operation of real CCD
­ No real event data ­ No calculation and download of ofset/ noise maps ­ No CCD temperature ­ No operation and status info of filter wheel


Next steps
· Decide if we go ahead with this proposal (during this meeting) · Compile list of commands and HK parameters which are not available (E.Ke) · Agree on schedule · Ship equipment to IAAT · Get spare chain running