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Inverse free-electron laser accelerator

Description: We first describe the basic physical properties of an inverse free-electron laser and make an estimate of the order of magnitude of the accelerating field obtainable with such a system; then apply the general ideas to the design of an actual device and through this example we give a more accurate evaluation of the fundamental as well as the technical limitations that this acceleration scheme imposes.
Date: January 1, 1982
Creator: Pellegrini, C. & Campisi, R.
Partner: UNT Libraries Government Documents Department
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Higher-Order-Modes and beam breakup simulations in the Jefferson Lab FEL recirculating linac

Description: Measurements were performed of the frequencies and external Q's of the first two Higher-Order Mode (HOM) dipole passbands in the eight superconducting cavities of the cryomodule used in the recirculating linac of the driver accelerator of Jefferson Lab's IR FEL. Anomalous high-Q resonances were found, which could lead to beam instabilities at currents close to the operating current of the machine. These results led to more detailed simulations of its beam breakup (BBU) behavior. The analysis in… more
Date: August 1, 1998
Creator: Merminga, L. & Campisi, R.E.
Partner: UNT Libraries Government Documents Department
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Design of the CEBAF Energy Upgrade Cryomodule Cold Mass

Description: The Jefferson Laboratory Energy Upgrade to 12 GeV will be accomplished by designing a new cryomodule with an increase in effective length of 40 percent while maintaining the same nominal cryomodule slot length within the linac. This is being achieved by changing from an eight five-cell cavity structure to an eight seven-cell cavity structure and removing all bellows between the cavities along the beamline. This approach has presented significant challenges with respect to the design as it perta… more
Date: June 1, 2001
Creator: Hogan, J.; Campisi, R.; Delayen, J.; Getz, R.; Guerra, A.; Henry, J. et al.
Partner: UNT Libraries Government Documents Department
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