Technical Design Report Super Fragment Separator

DRAFT
Figure 2.4.82: Two hybrids carrying PC diamond strip detectors and readout chips. The (2 x 2) cm² big
sensors of a strip- and readout pitch of 50� µm are centred over a hole in the aluminium frame (from RD42
collaboration).
The APV25 ASIC [23] has been tested and used for the readout of diamond signals stemming from
heavy ion signals and the Hades TRBv2 [24] board can be used with a GTB or Ethernet based
readout (see Figure 2.4.83). The board is equipped with an ETRAX processor running an embedded
Linux and can be readily used as EPICS instrument in a slow control chain. A Virtex 4
FPGA coupled to a 500MHz Tiger Shark digital signal processor and 128MByte SDRAM is installed
on the readout board, so that complex tracking algorithms together with automated calibration
and monitoring processes can be implemented.
Figure 2.4.83: APV25 based readout board for diamond detectors to be coupled with the HADES TRBv2
readout board.
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