The electronics, trigger and data acquisition system for the liquid argon time projection chamber of the DarkSide-50 search for dark matter
Here, the DarkSide-50 experiment at the Laboratori Nazionali del Gran Sasso is a search for dark matter using a dual phase time projection chamber with 50 kg of low radioactivity argon as target. Light signals from interactions in the argon are detected by a system of 38 photo-multiplier tubes (PMTs), 19 above and 19 below the TPC volume inside the argon cryostat. We describe the electronics which processes the signals from the photo-multipliers, the trigger system which identifies events of interest, and the data-acquisition system which records the data for further analysis. The electronics include resistive voltage dividers on the PMTs, custom pre-amplifiers mounted directly on the PMT voltage dividers in the liquid argon, and custom amplifier/discriminators (at room temperature). After amplification, the PMT signals are digitized in CAEN waveform digitizers, and CAEN logic modules are used to construct the trigger; the data acquisition system for the TPC is based on the Fermilab artdaq software. The system has been in operation since early 2014.
- Research Organization:
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States); Pacific Northwest National Lab. (PNNL), Richland, WA (United States); SLAC National Accelerator Lab., Menlo Park, CA (United States); Fermi National Accelerator Lab. (FNAL), Batavia, IL (United States); Princeton Univ., NJ (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), High Energy Physics (HEP)
- Contributing Organization:
- DarkSide Collaboration; DarkSide
- Grant/Contract Number:
- AC02-76SF00515; AC02-07CH11359; AC05-76RL01830; SC0007968; AC52-07NA27344
- OSTI ID:
- 1418007
- Alternate ID(s):
- OSTI ID: 1375909; OSTI ID: 1430716; OSTI ID: 1600022; OSTI ID: 1835689
- Report Number(s):
- FERMILAB-PUB-17-322-AE-E; arXiv:1707.09889; PNNL-SA-131302; LLNL-JRNL-738007; TRN: US1801229
- Journal Information:
- Journal of Instrumentation, Vol. 12, Issue 12; ISSN 1748-0221
- Publisher:
- Institute of Physics (IOP)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Web of Science
Similar Records
DarkSide: Latest results and future perspectives
Study of cosmogenic activation above ground for the DarkSide-20k experiment