Simulations of a FIR Oscillator with Large Slippage parameter at Jefferson Lab for FIR/UV pump-probe experiments

Conference · Sat Mar 01 00:00:00 EST 2014 · Journal of Physics. Conference Series

DOI:https://doi.org/10.1088/1742-6596/493/1/012025· OSTI ID:1126855

Benson, Stephen V. ^[1]; Campbell, L. T. ^[2]; McNeil, B.W.T. ^[3]; Neil, George R. ^[1]; Shinn, Michelle D. ^[1]; Williams, Gwyn P. ^[1]

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1. Thomas Jefferson National Accelerator Facility, Newport News, VA (United States)
2. University of Strathclyde, Glasgow (Great Britain); Daresbury Laboratory and Cockcroft Institute, Warrington (Great Britain)
3. University of Strathclyde, Glasgow (Great Britain)

We previously proposed a dual FEL configuration on the UV Demo FEL at Jefferson Lab that would allow simultaneous lasing at FIR and UV wavelengths. The FIR source would be an FEL oscillator with a short wiggler providing diffraction-limited pulses with pulse energy exceeding 50 microJoules, using the exhaust beam from a UVFEL as the input electron beam. Since the UV FEL requires very short pulses, the input to the FIR FEL is extremely short compared to a slippage length and the usual Slowly Varying Envelope Approximation (SVEA) does not apply. We use a non-SVEA code to simulate this system both with a small energy spread (UV laser off) and with large energy spread (UV laser on).

• Research Organization: Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
• Sponsoring Organization: USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22) (United States)
• DOE Contract Number: AC05-06OR23177
• OSTI ID: 1126855
• Report Number(s): JLAB-ACC-14-1826; DOE/OR/23177-3035; TRN: US1400273
• Journal Information: Journal of Physics. Conference Series, Vol. 493; Conference: 17th Pan-American Synchrotron Radiation Instrumentation Conference SRI2013, Gaithersburg, MD, (United States), 19-21 Jun 2013; ISSN 1742-6588
• Country of Publication: United States
• Language: English

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