EVIDENCE FOR MILLIMETER-WAVE COHERENT EMISSION FROM THE NSLS VUV RING.

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Coherent synchrotron radiation from the NSLS VUV ring has been detected and partially characterized. The observations have been performed at the new far infrared beamline U12IR. The coherent radiation is peaked near a wavelength of 7mm and occurs in short duration bursts. The bursts occur only when the electron beam current (I) exceeds a threshold value (I{sub th}), which itself varies with ring operating conditions. Beyond threshold, the average intensity of the emission is found to increase as (I-I{sub th}). The coherent emission implies micro-bunching of the electron beam due to a longitudinal instability.

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11 pages

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CARR,G.L. July 19, 1999.

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Description

Coherent synchrotron radiation from the NSLS VUV ring has been detected and partially characterized. The observations have been performed at the new far infrared beamline U12IR. The coherent radiation is peaked near a wavelength of 7mm and occurs in short duration bursts. The bursts occur only when the electron beam current (I) exceeds a threshold value (I{sub th}), which itself varies with ring operating conditions. Beyond threshold, the average intensity of the emission is found to increase as (I-I{sub th}). The coherent emission implies micro-bunching of the electron beam due to a longitudinal instability.

Physical Description

11 pages

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  • ACCELERATOR-BASED SOURCES OF INFRARED AND SPECTROSCOPIC APPLICATIONS II, SPIE CONF. PROC. NO.3775, DENVER, CO (US), 07/19/1999--07/20/1999

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  • Report No.: BNL--66993
  • Grant Number: AC02-98CH10886
  • Office of Scientific & Technical Information Report Number: 750777
  • Archival Resource Key: ark:/67531/metadc711588

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  • July 19, 1999

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  • Sept. 12, 2015, 6:31 a.m.

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  • Nov. 9, 2015, 12:02 p.m.

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CARR,G.L. EVIDENCE FOR MILLIMETER-WAVE COHERENT EMISSION FROM THE NSLS VUV RING., article, July 19, 1999; Upton, New York. (digital.library.unt.edu/ark:/67531/metadc711588/: accessed November 23, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.