| Summary: | The flux of cosmic-ray electrons in the energy interval of 17-63 MeV was measured in three high-altitude balloon flights during the summer 1967 near Fort Churchill, Manitoba. The average flux was found to be 0.3±0.2 electrons/m^2 sec sr MeV. Implications of this result on models of the origin of galactic cosmic-ray electrons and their solar modulation are discussed. © 1968 American Physical Society. Received 28 March 1968. We wish to thank Dr. K. Beuermann, Professor L. Davis, Professor E. Stone, and Mr. C. Rice for stimulating discussions. Also, we gratefully acknowledge the efforts of Mr. C. Rice, Mr. W. Blodgett, and Mr. M. Casteel, who assisted in various phases of construction, operation, and data reduction. We also express our appreciation to the staff of the Caltech synchrotron for use of their facilities for the calibration of our detector. * Work supported by the National Aeronautics and Space Administration under Grant No. NsG-426. Published - PhysRevLett.20.1053.pdf
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