Münster 2017 – wissenschaftliches Programm
HK 63.7: Vortrag
Freitag, 31. März 2017, 15:30–15:45, F 072
Towards new analog read-out electronics for the HADES drift chamber system — •Michael Wiebusch for the HADES collaboration — Goethe-Universität, Frankfurt
Track reconstruction in HADES is realized with 24 planar,
low-mass drift chambers (MDC).
About 27000 drift cells provide both, precise spatial
information of track hit points and energy loss information.
In order to handle high rates and track densities required at the future SIS100 accellerator at FAIR,
an upgrade of the MDC system is necessary.
This involves new front-end electronics, as the
original analog read-out ASIC (ASD8) is no longer procurable.
A promising replacement read-out chip candidate is the PASTTREC ASIC
(developed at Jagiellonian University, Krakow), which is currently at the focus
of our investigations.
This contribution will present the test procedures employed to evaluate the compatibility of the ASIC with
the drift chambers w.r.t. spatial/energy resolution and detection efficiency.
Also a cost-efficient and lightweight FPGA-based prototype TDC is used, which
is foreseen to replace the TDC ASICs presently used.
To arrive at conclusive performance results, the tests have to be conducted under realistic conditions
in direct comparison to the present ASICs.
This work has been supported by BMBF (05P15RFFCA), GSI, HGS-HIRe and HIC for FAIR.