Transverse - longitudinal phase-space manipulations and correlations.
Manipulations on transverse and longitudinal phase-space distribution of an electron beam are discussed within the constraints imposed by symplectic conditions. A few examples are presented: transverse-longitudinal emittance exchange to improve performance of a high-gain free-electron laser (FEL) for hard x-rays, and the flat beam technique and its application to compact Terahertz devices and ultrashort-pulse generation. It is shown that emittance transfer to some degree would be advantageous for FELs and that introducing correlations would allow just such transfers. Also, it is shown that transverse-longitudinal correlations would be distinctly advantageous for FELs. Conventional and exotic methods of producing such correlations are described. Practical difficulties associated with each of the conventional methods are described, although the nonconventional methods appear to hold promise.
- Research Organization:
- Argonne National Lab. (ANL), Argonne, IL (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC)
- DOE Contract Number:
- DE-AC02-06CH11357
- OSTI ID:
- 982593
- Report Number(s):
- ANL/ASD/CP-117622; TRN: US201015%%1203
- Resource Relation:
- Conference: International Workshop on Beam Cooling and Related Topics (COOL05); Sep. 18, 2005 - Sep. 23, 2005; Galena, IL
- Country of Publication:
- United States
- Language:
- ENGLISH
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Transverse-to-Longitudinal Emittance Exchange to Improve Performance of High-Gain Free-Electron Lasers
Transverse-to-longitudinal emittance exchange to improve performance of high-gain free-electron lasers.