ISSN:
1608-3180
Source:
Springer Online Journal Archives 1860-2000
Topics:
Electrical Engineering, Measurement and Control Technology
Notes:
Abstract A fall-back option of the T0 start trigger detector was developed for the ALICE setup that was intended for the study of quark–gluon plasma with the LHC accelerator (CERN). The Monte Carlo simulation with the PYTHIA program was performed for a detector incorporating two symmetrical arrays of 12 Cerenkov counters, each composed of 26-mm-diameter Hamamatsu R5505 phototubes with fine-mesh dynodes and a quartz radiator 3 cm in length and 26 mm in diameter. Its simulated detection efficiency for p–p collisions exceeded 88%. A prototype Cerenkov counter, consisting of a R3432-01(similar to R5505) phototube and a quartz radiator with dimensions of 25 × 30 × 12 mm, was tested in a beam of pions and protons with a 1.19-GeV/c-momentum. The time resolution in the 1–200 dynamic range was better than 50 ps.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1023/A:1026607631385
Permalink