Physics
Scientific paper
Nov 1985
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1985nimpa.241..257s&link_type=abstract
Nuclear Instruments and Methods in Physics Research Section A, Volume 241, Issue 1, p. 257-264.
Physics
Scientific paper
We have studied in detail the possibility of detecting cosmic ray electrons of energy >~1014 eV using high energy γ-ray detectors. Such instruments would detect synchrotron γ-rays radiated by the electrons, while traversing the Earth's magnetic field. These radiated γ-rays are expected to be incident along a straight line in the detector for an unambiguous identification of an electron event. Our analysis shows that small γ-ray detectors such as those in SAS-2 and COS-B satellites cannot be used for this purpose. The high energy γ-ray detector to be flown on the GRO satellite may be able to detect electrons, if the energy spectrum of electrons at high energies is modified by the influence of a nearby source. Such exciting possibilities can be observed with large area γ-ray instruments, which are aslo capable of detecting γ-rays through Compton scattered electrons. We have, in this investigation, suggested ways of utilizing future large area γ-ray observatories to open up a new avenue for the study of ultra high energy cosmic ray electrons.
Balasubrahmanyan V. K.
Stephens Alfred S.
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