Cosmic ray isotope measurements with a new Cerenkov X total energy telescope

Details Cosmic ray isotope measurements with a new Cerenkov X total energy telescope Cosmic ray isotope measurements with a new Cerenkov X total energy telescope

Aug 1985

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985icrc....2...88w&link_type=abstract

In NASA. Goddard Space Flight Center 19th Intern. Cosmic Ray Conf., Vol. 2 p 88-91 (SEE N85-34006 22-93)

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Cerenkov Radiation, Cosmic Rays, Galactic Radiation, Isotopes, Nuclides, Balloon Sounding, Balloon-Borne Instruments, Cerenkov Counters, Photomultiplier Tubes, Resolution, Scintillation Counters

Scientific paper

Measurements of the isotopic composition of cosmic nuclei with Z = 7-20 are reported. These measurements were made with a new version of a Cerenkov x total E telescope. Path length and uniformity corrections are made to all counters to a RMS level 1%. Since the Cerenkov counter is crucial to mass measurements using the C x E technique - special care was taken to optimize the resolution of the 2.4 cm thick Pilot 425 Cerenkov counter. This counter exhibited a beta = 1 muon equivalent LED resolution of 24%, corresponding to a total of 90 p.e. collected at the 1st dynodes of the photomultiplier tubes.

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