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A small depression (about 80 Å) was observed when AsS thin films were exposed to a xenon 500-W lamp. The depression is considered to be a structural change in amorphous AsS.
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Magnetic insulation of an intense relativistic electron beam

J. Appl. Phys. 45, 3211 (1974); doi:10.1063/1.1663755

Issue Date: July 1974

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J. Golden, T. J. Orzechowski, and G. Bekefi
Department of Aeronautics and Astronautics, Department of Physics, and Research Laboratory of Electronics, Massachusetts Institute of Technology, Cambridge, Massachusetts, 02139
A magnetic field is used as an insulator, preventing electrons from crossing the gap of a pulsed field-emission diode subjected to voltages of 100–250 kV. The diode is comprised of two concentric cylinders with a variable gap separation ranging from 2 to 6 mm. A pulsed magnetic field up to 15 kG is applied along the diode axis. When the magnetic field exceeds a certain critical value, the electron current (which is typically 10–30 kA) is reduced by approximately two orders of magnitude. The desired magnetic insulation lasts over the full 50-nsec voltage pulse. ©1974 American Institute of Physics
History: Received 28 January 1974; revised 25 March 1974
Permalink: http://link.aip.org/link/?JAPIAU/45/3211/1
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ISSN:
0021-8979 (print)   1089-7550 (online)
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REFERENCES (12)
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