The PMT acquisition and trigger generation system of the HEPD-02 calorimeter for the CSES-02 satellite.
July 25, 2023
The HEPD-02 calorimeter, realized by the Italian collaboration for the CSES-02 mission, will be
equipped with a redesigned electronic board for the acquisition and digitization of signals from
the PMTs and the generation of the trigger signal for the detector.
The board represents an improvement of the previous version used for HEPD-01, onboard of the
CSES-01 satellite. The enhancements include the utilization of a new generation ASIC (CITIROC)
for the amplification, shaping and memorization of signals from PMTs.
The new ASIC features several improvements, including the peak detection mode, which optimizes
the acquisition of signals with different temporal characteristics, such those produced by plastic
scintillators and LYSO.
In addition to this, additional features will be implemented: trigger prescaling, concurrent trigger
masks and Gamma Ray Burst detection.
Using prescaled concurrent triggers, it will be possible to use different masks per orbital zone at
the same time, avoiding the saturation of the available bandwidth.
Concurrent triggers will also be used for the detection of rare events (such as GRBs) while
monitoring particle bursts.
In this contribution, I will present the progress status of this work and the measurements and tests
made to finalize the Flight Model of the board.
How to cite
Metadata are provided both in "article" format (very similar to INSPIRE) as this helps creating
very compact bibliographies which can be beneficial to authors and
readers, and in "proceeding" format
which is more detailed and complete.