Mar 18 – 22, 2021
Stony Brook, NY
US/Eastern timezone

Towards scalable fast-neutron and reactor-antineutrino detectors based on 6Li-doped PSD plastic scintillators and SiPM arrays

Mar 18, 2021, 3:00 PM
Stony Brook, NY

Stony Brook, NY

Online [US/EST Timezone]
Readout & ASICs Readout and ASIC


Viacheslav Li (Lawrence Livermore National Laboratory)


At the previous CPAD workshop (Madison, 2019), we presented observation of Pulse-Shape Discrimination (PSD) in segmented plastic scintillator developed at LLNL instrumented with modern photosensors — silicon-photomultiplier arrays.
This talk discusses the progress of various experimental efforts we have pursued for several potential applications of such detectors, ranging from nuclear non-proliferation to fundamental science of elementary particles. The current bottleneck in constructing finely-segmented low-power detectors instrumented with SiPM arrays is the readout electronics, as there are not many off-the-shelf scalable options. One promising solution is low-cost electronics for large-channel count readout as used in the Positron-Emission-Tomography (PET) scanners. The challenge arises in achieving the PSD in such system, as the electronics are not designed to store full waveforms — only charge and timestamp for a given integration window are recorded. The PSD in such systems is likely to be inferior to the full-waveform readouts. This talk is to discuss these challenges and to draw attention of the community to several key technological bottlenecks.

LLNL-ABS-819831. This work was performed under the auspices of the U.S. Department of Energy by Lawrence Livermore National Laboratory under Contract DE-AC52-07NA27344.

Primary authors

Felicia Sutanto (University of Michigan) Prof. Igor Jovanovic (University of Michigan) Dr Michael Ford (LLNL) Nathaniel Bowden (LLNL) Steven Dazeley (LLNL) Dr Timothy Classen (LLNL) Tingshiuan Wu (University of Michigan) Viacheslav Li (Lawrence Livermore National Laboratory)

Presentation materials