STI Publications - View Publication Form #1019
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Publication Information
| Title | First Operation of an FEL in Same-cell Energy Recovery Mode | ||||
| Abstract | The driver for Jefferson Lab's kW-level infrared free-electron laser (FEL) is a superconducting, recirculating accelerator that recovers 75% of the electron-beam power and converts it to radio frequency power. As reported in FEL'98, the accelerator operated ''straight-ahead'' to deliver 38 MeV, 1.1 mA cw current for lasing at wavelengths in the vicinity of 5 microns. The waste beam was sent directly to a dump, bypassing the recirculation loop. Stable operation at up to 311 W cw was achieved in this mode. The machine has now recirculated cw average current up to 4.6 mA and has lased cw with energy recovery up to 1,720 W output at 3.1 microns. This is the first FEL to ever operate in the ''same-cell'' energy recovery mode. Energy recovery offers several advantages (reduced RF power and dramatically reduced radio-nuclide production at the dump) and several challenges will be described. The authors have observed heating effects in the mirrors which will be described. They will also report | ||||
| Author(s) | George Neil  , Steve Benson, George Biallas , Court Bohn, David Douglas, Fred Dylla, Rich Evans, Jock Fugitt, Joe Gubeli, Richard Hill, Kevin Jordan, Geoffrey Krafft , Rui Li, Lia Merminga, Dick Oepts, Philippe PIOT, Joe Preble, Michelle Shinn, Tim Siggins, Richard Walker, Byung Yunn |
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| Publication Date | May 2000 | ||||
| Document Type | Journal Article | ||||
| Primary Institution | Thomas Jefferson National Accelerator Facility, Newport News | ||||
| Affiliation | FEL & CTO / FEL/Light Sources / FEL/Light Sources Core | ||||
| Funding Source | |||||
| Proprietary? | No | ||||
| This publication conveys | Technical Science Results | ||||
| Document Numbers |
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| Associated with an experiment | No | ||||
| Associated with EIC | No | ||||
| Supported by Jefferson Lab LDRD Funding | No |
Journal Article
| Journal Name | Nuclear Instruments & Methods in Physics Research, Section A |
| Refereed | Yes |
| Volume | 445 |
| Issue | 1-3 |
| Page(s) | 192-196 |
Attachments/Datasets/DOI Link
| Document(s) |
JLAB-ACT-99-06.pdf
(STI Document)
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| Dataset(s) | (none) |
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