First lasing of a high-gain harmonic generation free-electron laser experiment.

Conference · Sat Sep 11 00:00:00 EDT 1999

OSTI ID:11801

Babzien, M; Ben-Zvi, I; Biedron, S G; DiMauro, L F; Douryan, A; Galayda, J N; Gluskin, E; Graves, W; Jagger, J; Johnson, E; Krinsky, S; Malone, R; Pogorelsky, I; Rakowsky, G; Sajaev, V; Skaritka, J; Solomon, L; Vasserman, I; Wang, X L; Woodle, M ; Yakimenko, V; Yu, L -H

We report on the first lasing of a high-gain harmonic generation (HGHG) free-electron laser (FEL). The experiment was conducted at the Accelerator Test Facility (ATF) at Brookhaven National Laboratory (BNL). This is a BNL experiment in collaboration with the Advanced Photon Source (APS) at Argonne National Laboratory. A preliminary measurement gives a high-gain harmonic generation (HGHG) pulse energy that is 2 x 10{sup 7} times larger than the spontaneous radiation, In a purely self-amplified spontaneous emission (SASE) mode of operation, the signal was measured as 10 times larger than the spontaneous radiation in the same distance ({approximately}2 m) through the same wiggler. This means the HGHG signal is 2 x 10{sup 6} times larger than the SASE signal. To obtain the same saturated output power by the SASE process, the radiator would have to be 3 times longer (6 m).

• Research Organization: Argonne National Lab., IL (US)
• Sponsoring Organization: US Department of Energy (US)
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 11801
• Report Number(s): ANL/ASD/CP-98997; TRN: US0102129
• Resource Relation: Conference: 21st International Free Electron Laser Conference, Hamburg (DE), 08/23/1999--08/28/1999; Other Information: PBD: 11 Sep 1999
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS
TEST FACILITIES
ACCELERATORS
FREE ELECTRON LASERS
HARMONIC GENERATION
OPERATION
PERFORMANCE