HYPOLIT, a high resolution fast beam RICH
Creators
- 1. Inst. des Sciences Nucleaires, IN2P3, 38 Grenoble (France)
- 2. Inst. fuer Kernphysik, Univ. of Mainz (Germany)
Description
A new Cherenkov counter has been designed for on-line tagging of high energy particles, more specifically 270 GeV hyperons in WA89 experiment at CERN. It is equipped with a 6 m focal length spherical mirror and a chromatic corrector. The ring size is reduced by a factor of 8 (adjustable) by means of a set of two conical mirrors. The photon detector is an image intensifier. Its output window is divided in 160 pixels read with photomultipliers via optical fibres. The ring radius is determined electronically and a tagging signal is available in less than 2.5 μs. HYPOLIT has been tested in a 220 GeV pion beam (50 μ rad divergence). A spatial resolution of 0.125 mm on the radius has been obtained, and the pion-kaon separation was better than 5σ. (orig.)
Additional details
Publishing Information
- Journal Title
- Nuclear Instruments and Methods in Physics Research. Section A, Accelerators, Spectrometers, Detectors and Associated Equipment
- Journal Volume
- 343
- Journal Issue
- 1
- Journal Page Range
- p. 218-221.
- ISSN
- 0168-9002
- CODEN
- NIMAER
Conference
- Title
- 1. workshop on ring imaging Cherenkov detectors.
- Dates
- 02-05 Jun 1993.
- Place
- Bari (Italy).
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- Netherlands
- INIS RN
- 25050068
- Subject category
- S46: INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; S46: INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY;
- Resource subtype / Literary indicator
- Conference
- Descriptors DEI
- CHERENKOV COUNTERS; CHERENKOV RADIATION; CHROMATIC ABERRATIONS; CORRECTIONS; FIBER OPTICS; GEV RANGE 100-1000; HYPERONS; IMAGE INTENSIFIERS; IMAGE PROCESSING; KAON DETECTION; MIRRORS; ON-LINE MEASUREMENT SYSTEMS; OPTICAL FIBERS; PARTICLE DISCRIMINATION; PHOTODETECTORS; PHOTOMULTIPLIERS; PION DETECTION; READOUT SYSTEMS; RELATIVISTIC RANGE; SIGMA PARTICLES; SPATIAL RESOLUTION; WEAK HADRONIC DECAY; XI PARTICLES
- Descriptors DEC
- BARYONS; DECAY; DETECTION; ELECTROMAGNETIC RADIATION; ELEMENTARY PARTICLES; ENERGY RANGE; FERMIONS; FIBERS; GEV RANGE; HADRONS; MEASURING INSTRUMENTS; ON-LINE SYSTEMS; OPTICS; PARTICLE DECAY; PARTICLE IDENTIFICATION; PHOTOTUBES; RADIATION DETECTION; RADIATION DETECTORS; RADIATIONS; RESOLUTION; SIGMA BARYONS; STRANGE PARTICLES; WEAK PARTICLE DECAY; XI BARYONS