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 | ||||
| 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)
|
| Dataset(s) | (none) |
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