Intense Electron Beam Generation and Compression. Advances in High-Dose Diagnostics and Theory.
Final rept. Mar-Nov 77,
PHYSICS INTERNATIONAL CO SAN LEANDRO CALIF
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Intense electron beam generation and compression in a converging magnetic guide field has been studied experimentally and theoretically. Beams from the OWL II generator with peak parameters of typically 350 kA, 1.2 MeV, and 120 nsec FWHM of power pulse have been diagnosed before and after factor-of-three area compression, using a newly constructed multi-collector Faraday cup for current density profile measurements, and a multi-layered or filtered Faraday cup for time-resolved electron angle measurements and time-integrated charge deposition profile measurements. Both diagnostics were successfully used at dose levels up to about 4000 calgm. The effect of reflected electrons on diode behavior has been examined and found to be non-negligible for certain target configurations. Experimental results have been used to test the calculations of the REEFER diode code and of the new code, REFLEX, which was developed in this program to evaluate compressed-beam transport according to the Young-Spence model. Author
- Electrical and Electronic Equipment
- Electricity and Magnetism
- Nuclear Physics and Elementary Particle Physics