Title :
Liquid ionization detectors: the UA-1 collaboration
Abstract :
Summary form only given. Ionization chambers filled with liquefied noble gas have been commonly used as particle detectors. Recent research on warm liquids has made possible the construction of a large-scale calorimeter at CERN, filled with tetramethylpentane. For continuously sensitive detectors used in cosmic-ray physics, ultrahigh purity of the liquid is required to allow the electrons to travel over large distances without being trapped by impurities. Electron lifetimes of a few milliseconds have been reached in cryogenic liquids, and lifetimes of a few hundred microseconds have been obtained in warm liquids to assure good performance of the calorimeter
Keywords :
calorimeters; ionisation chambers; organic compounds; CERN; UA-1 collaboration; electron lifetimes; ionization chambers; large-scale calorimeter; liquefied noble gas; liquid ionization detectors; particle detectors; tetramethylpentane; ultrahigh purity; warm liquids; Detectors; Dielectric breakdown; Dielectric liquids; Educational institutions; Electron traps; Impurities; International collaboration; Ionization; Large-scale systems; Physics;
Conference_Titel :
Conduction and Breakdown in Dielectric Liquids, 1990. ICDL 1990. Conference Record., 10th International Conference on
Conference_Location :
Grenoble
DOI :
10.1109/ICDL.1990.202872
