Implementation of the first level trigger for ultra-high-energy cosmic ray (UHECR) detection from space with JEM-EUSO: Initial test results
Résumé
The JEM-EUSO Collaboration aims to study Ultra-High-Energy Cosmic Ray (UHECR) using a novel approach of looking down from space and using the atmosphere as a large detector to achieve a large effective area and therefore high-statistics on these events for the first time. For this purpose we have been developing a series of pathfinders operating from the ground, high altitude balloons and space, all sharing the same electronics, in particular the central data acquisition system. We report on the implementation and successful testing of the first-level trigger (L1) within the FPGA of the photo-detection module (PDM) board, which processes the signals from 36 64-pixel MAPMTs with a time unit of 2.5 μs to detect the passage of light from cosmic ray generated air-showers.
Mots clés
Field programmable gate arrays
Cosmic rays
Collaboration
Aerospace electronics
Telescopes
cosmic ray apparatus
cosmic ray showers
data acquisition
field programmable gate arrays
high-energy cosmic ray interactions
nuclear electronics
photodetectors
photomultipliers
position sensitive particle detectors
readout electronics
UHECR
JEM-EUSO Collaboration
high altitude balloons
cosmic ray generated air-showers
MAPMT
photodetection module board
FPGA
central data acquisition system
statistics
ultrahigh-energy cosmic ray detection
first-level trigger
cosmic radiation: UHE
showers: atmosphere
cosmic radiation: interaction
electronics: readout
photon: detector
trigger
position sensitive
photomultiplier
nucleus