Title :
The trigger and DAQ systems of the Na59 experiment
Author :
Ünel, Gökhan ; Birol, 0nanç ; Ballestrero, Sergio
Author_Institution :
Dept. of Phys. & Astron., Northwestern Univ., Evanston, IL, USA
Abstract :
NA59 experiment on the CERN SPS-H2 beamline took data during the summers of 1999 and 2000 to perform intercalibration studies of polarization measurement, and to test the use of an aligned crystal as a quarter-wave plate. The analysis revealed a proof of concept for the birefringence property of aligned crystals for photons in the 30-170 GeV energy range. The 90-meter long detector for this fixed target experiment had two independent readout schemes: one for more than 120 TDC and ADC channels to obtain tracking and energy information; and another for the readout of the silicon strip detectors to improve vertex resolution. The readout electronics of the Na59 experiment was based on VMEbus and CAMAC systems. A novel data acquisition and online monitoring software were written to work on the commodity hardware (PCs) running mainly Linux operating system.
Keywords :
CAMAC; birefringence; data acquisition; high energy physics instrumentation computing; nuclear electronics; parallel architectures; photon polarisation; position sensitive particle detectors; readout electronics; silicon radiation detectors; trigger circuits; 30 to 170 GeV; ADC channels; CAMAC; CERN SPS-R2 beamline; DAQ systems; Na59 experiment; TDC channels; VMEbus; aligned crystal; birefringence property; commodity hardware; fixed target experiment; independent readout schemes; online monitoring software; parallel readout scheme; polarization measurement; quarter-wave plate; readout hardware; silicon strip detectors; trigger systems; vertex resolution; Birefringence; Data acquisition; Detectors; Optical retarders; Performance evaluation; Photonic crystals; Polarization; Silicon; Target tracking; Testing;
Conference_Titel :
Nuclear Science Symposium Conference Record, 2003 IEEE
Print_ISBN :
0-7803-8257-9
DOI :
10.1109/NSSMIC.2003.1351938
