Speaker
Dr
Pawel Marciniewski
(Uppsala University)
Description
A compact size, 64-channel, 80 MSPS, 14-bit dynamic range ADC
modules for the scintillating electromagnetic calorimeter of PANDA were
developed and used for testing in various detector readout set-ups [1].
To minimize cabling bulk, the modules are planned to be placed inside of
the PANDA detector volume, where they will be exposed to magnetic field
of 2T and a non-negligible radiation flux. The module performs signal
filtration, extracts important signal parameters and allows for
resolving and parametrizing overlapping pulses. A dual FPGA structure
and a hardwired arbitration circuit allows for resolving potentially
catastrophic situations caused by radiation-induced (SEU) configuration
damages. The FPGAs are prepared for self-detection and recovery from
SEU. Processed data are pushed to the optical link running at 2 Gbit/s.
The ADC module is compliant with a “Synchronization Of Data Acquisition”
(SODA) System, which allows for obtaining defined latencies with a
reference time accuracy of 50 ps [2]. The paper describes construction
details and test environments. The results of performance test,
including dynamic range, linearity, magnetic field and preliminary
radiation sustainability are also presented.
Primary author
Dr
Pawel Marciniewski
(Uppsala University)
