First lasing of the IR upgrade FEL at Jefferson Lab
Behre, C., Benson, S., Biallas, G., Boyce, J., Curtis, C., Douglas, D., Dylla, H.F., Dillon-Townes, L., Evans, R., Grippo, A., Gubeli, J., Hardy, D., Heckman, J., Hernandez-Garcia, C., Hiatt, T., Jordan, K., Merminga, L., Neil, G., Preble, J., Rutt, H., Shinn, M., Siggins, T., Toyokawa, H., Waldman, D.W., Walker, R., Wilson, N., Yunn, B. and Zhang, S. (2004) First lasing of the IR upgrade FEL at Jefferson Lab. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 528, (1-2), 19-22. (doi:10.1016/j.nima.2004.04.010)
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Official URL: http://dx.doi.org/10.1016/j.nima.2004.04.010
Description/Abstract
We report initial lasing results from the IR Upgrade FEL at Jefferson Lab (Proceedings: 2001 Particle Accelerator Conference, IEEE, Piscataway, NJ, 2001). The electron accelerator was operated with low average current beam at 80 MeV. The time structure of the beam was 120 pC bunches at 4.678 MHz with up to 750 μs pulses at 2 Hz. Lasing was established over the entire wavelength range of the mirrors (5.5–6.6 μm). The detuning curve length, turn-on time, and power were in agreement with modeling results assuming a 1 ps FWHM micropulse. The same model predicts over 10 kW of power output with 10 mA of beam and 10% output coupling, which is the ultimate design goal of the IR Upgrade FEL. The behavior of the laser while the dispersion section strength was varied was found to qualitatively match predictions. Initial CW lasing results also will be presented.
| Item Type: | Article |
|---|---|
| Additional Information: | 2787 |
| ISSN: | 0168-9002 (print) |
| Uncontrolled Keywords: | high power, undulators |
| Related URLs: | http://dx.doi.org/10.1016/j.ni...004.04.010 |
| Subjects: | T Technology > TK Electrical engineering. Electronics Nuclear engineering Q Science > QC Physics |
| Divisions: | University Structure - Pre August 2011 > Optoelectronics Research Centre |
| ePrint ID: | 21009 |
| URI: | http://eprints.soton.ac.uk/id/eprint/21009 |
| Deposited On: | 07 Mar 2006 |
| Last Modified: | 01 Apr 2012 02:21 |
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