Cornell relativistic electron coil experiment (RECE). Progress report, January 1, 1973--June 30, 1973

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Measurements on the RECE-Berta facility indicate that strong relativistic electron rings can withstand ( self-heal'') considerably larger irregularities in the externally applied magnetic field than had been assumed in the past. At the same time, energy measurements on the trapped electrons showed that the energy losses of these electrons are dominated by classical collisions with the background gas and do not seem seriously enhanced by collective effects. Similarly, a more detailed theoretical analysis of the absolute decay rates of our rings done in this period reaffirms that the decay of our rings can be fully explained by classical collisions without ... continued below

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Pages: 149

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Fleischmann, H.H. January 1, 1973.

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Measurements on the RECE-Berta facility indicate that strong relativistic electron rings can withstand ( self-heal'') considerably larger irregularities in the externally applied magnetic field than had been assumed in the past. At the same time, energy measurements on the trapped electrons showed that the energy losses of these electrons are dominated by classical collisions with the background gas and do not seem seriously enhanced by collective effects. Similarly, a more detailed theoretical analysis of the absolute decay rates of our rings done in this period reaffirms that the decay of our rings can be fully explained by classical collisions without anomalous effects. In another small pilot facility, a different injection scheme -injection of the electron beams through a magnetic cusp--was successfully tested and led to the generation of field-reversing electron rings. These rings exhibited life times of up to 9 mu sec and general characteristics very similar to those observed on the RECE-Berta rings. The acceptance tests for the new 5-MeV electron accelerator were successfully completed and the machine is in operation. So far, excellent operational and maintenance characteristics were observed, and no problems were encountered. The new RECE-Christa facility was put into operation amd experiments on it started. Some unexpected problems were encountered in the propagation of the new high-energy beams through the beam injector. However, first trapping experiments still led to the generation of almost-fieldreversing electron rings. The general characteristics of these rings again are very similar to those observed in the other machines. However, life times increased to up to 125 mu sec, i.e., about five times over those found in RECE-Berta. Very encouragingly, these life times agree well with extrapolations of the RECE- Berta results based on a purely collisional scaling. (auth)

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Pages: 149

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  • Other Information: Orig. Receipt Date: 30-JUN-74

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  • Report No.: COO--2319-3
  • Grant Number: AT(11-1)-2319
  • DOI: 10.2172/4312608 | External Link
  • Office of Scientific & Technical Information Report Number: 4312608
  • Archival Resource Key: ark:/67531/metadc1025805

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  • January 1, 1973

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  • Oct. 15, 2017, 10:09 p.m.

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Fleischmann, H.H. Cornell relativistic electron coil experiment (RECE). Progress report, January 1, 1973--June 30, 1973, report, January 1, 1973; United States. (digital.library.unt.edu/ark:/67531/metadc1025805/: accessed December 12, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.