Cerenkov detector for heavy-ion velocity measurements

Conference · Wed Aug 01 04:00:00 EDT 1984

OSTI ID:6413372

Olson, D L; Baumgartner, M; Dufour, J P; Girard, J G; Greiner, D E; Lindstrom, P J; Symons, T J.M.; Crawford, H J

We have developed a highly sensitive velocity measuring detector using total-internal-reflection Cerenkov counters of a type mentioned by Jelly in 1958. If the velocity of the particle is above the threshold for total-internal-reflection these counters have a charge resolution of sigma = 0.18e for a 3mm thick glass radiator. For the velocity measurement we use a fused silica radiator so that the velocity of the particles are near the threshold for total-internal reflection. For momentum-analyzed projectile fragments of 1.6 GeV/nucleon /sup 40/Ar, we have measured a mass resolution of sigma = 0.1u for isotope identification.

• Research Organization: Lawrence Berkeley Lab., CA (USA)
• DOE Contract Number: AC03-76SF00098
• OSTI ID: 6413372
• Report Number(s): LBL-18259; CONF-8409158-1; ON: DE85002067
• Country of Publication: United States
• Language: English

Related Subjects

440101* -- Radiation Instrumentation-- General Detectors or Monitors & Radiometric Instruments
440103 -- Radiation Instrumentation-- Nuclear Spectroscopic Instrumentation
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
CHALCOGENIDES
CHERENKOV COUNTERS
HEAVY ION SPECTROMETERS
MEASURING INSTRUMENTS
MINERALS
OXIDE MINERALS
OXIDES
OXYGEN COMPOUNDS
RADIATION DETECTORS
RESOLUTION
SILICA
SILICON COMPOUNDS
SILICON OXIDES
SPECTROMETERS