Author :
Adam, W. ; Albrecht, E. ; Ambec, I. ; Augustinus, A. ; Barnoux, C. ; Bostjancic, B. ; Botner, O. ; Budziak, A. ; Carechio, P. ; Cavalli, P. ; Ceelie, L. ; Cereseto, R. ; Cerutti, G. ; Dahl-Jensen, E. ; Dam, Ph ; Damgaard, G. ; Dimitriou, N. ; Dulinski, W.
Abstract :
One quarter of the Forward Ring Imaging Cherenkov (Forward RICH) detector has been installed and operated in the DELPHI experiment. The detector covers the forward-backward regions (15°<θ<35°). Two radiator systems are used for particle identification in the momentum range up to 40 GeV/c, i.e., a liquid perfluorohexane and perfluorobutane gas. UV-photons with wavelengths from ~170 nm to ~200 nm (7.3-6.2 eV) are detected with high efficiency. The total active area of the photon detector is ~8 m2
Keywords :
Cherenkov counters; radiation detection and measurement; 170 to 200 nm; 7.3 to 6.2 eV; DELPHI; Forward RICH detector; UV-photons; liquid perfluorohexane; perfluorobutane gas; Assembly; Containers; Coordinate measuring machines; Detectors; Image reconstruction; Nuclear physics; Particle measurements; Particle tracking; Sensor arrays; Testing;
