High-energy cosmic-ray electrons: A new measurement using transition-radiation detectors
Journal Article
·
· Phys. Rev. Lett.; (United States)
A new detector for cosmic-ray electrons, consisting of a combination of a transition-radiation detector and a shower detector, has been constructed, calibrated at accelerator beams, and exposed in a balloon flight under 5 g/cm/sup 2/ of atmosphere. The design of this instrument and the method of data analysis are described. Preliminary results in the energy range 9--300 GeV are presented. The energy spectrum of electrons is found to be significantly steeper than that of protons, consistent with a long escape lifetime of cosmic rays in the galaxy.
- Research Organization:
- Enrico Fermi Institute and Department of Physics, University of Chicago, Chicago, Illinois 60637
- OSTI ID:
- 7304761
- Journal Information:
- Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 38:23; ISSN PRLTA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
440104 -- Radiation Instrumentation-- High Energy Physics Instrumentation
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
640101* -- Astrophysics & Cosmology-- Cosmic Radiation
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BALLOONS
CALIBRATION
COSMIC ELECTRONS
COSMIC RADIATION
COSMIC RAY DETECTION
ELECTRONS
ELEMENTARY PARTICLES
ENERGY RANGE
ENERGY SPECTRA
FERMIONS
GEV RANGE
IONIZING RADIATIONS
LEPTONS
MEASURING INSTRUMENTS
RADIATION DETECTION
RADIATION DETECTORS
RADIATIONS
SHOWER COUNTERS
SPECTRA
TRANSITION RADIATION DETECTORS
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY
640101* -- Astrophysics & Cosmology-- Cosmic Radiation
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
BALLOONS
CALIBRATION
COSMIC ELECTRONS
COSMIC RADIATION
COSMIC RAY DETECTION
ELECTRONS
ELEMENTARY PARTICLES
ENERGY RANGE
ENERGY SPECTRA
FERMIONS
GEV RANGE
IONIZING RADIATIONS
LEPTONS
MEASURING INSTRUMENTS
RADIATION DETECTION
RADIATION DETECTORS
RADIATIONS
SHOWER COUNTERS
SPECTRA
TRANSITION RADIATION DETECTORS