LASER WAKEFIELD ACCELERATION DRIVEN BY ATF CO2 LASER (STELLA-LW).
A new experiment has begun that builds upon the successful Staged Electron Laser Acceleration (STELLA) experiment, which demonstrated high-trapping efficiency and narrow energy spread in a staged laser-driven accelerator. STELLA was based upon inverse free electron lasers (IFEL); the new experiment, called STELLA-LW, is based upon laser wakefield acceleration (LWFA). The first phase of STELLA-LW will be to demonstrate LWFA in a capillary discharge driven by the Brookhaven National Laboratory Accelerator Test Facility (ATF) terawatt CO{sub 2} laser beam. This will be the first time LWFA is conducted at 10.6-{micro}m laser wavelength. It will also be operating in an interesting pseudo-resonant regime where the laser pulse length is too long for resonant LWFA, but too short for self-modulated LWFA. Analysis has shown that in pseudo-resonant LWFA, pulse-steepening effects occur on the laser pulse that permits generation of strong wakefields. Various approaches are being explored for the capillary discharge including polypropylene and hydrogen-filled capillaries. Planned diagnostics for the experiment include coherent Thomson scattering (CTS) to detect the wakefield generation. This will be one of the first times CTS is used on a capillary discharge.
- Research Organization:
- BROOKHAVEN NATIONAL LABORATORY (US)
- Sponsoring Organization:
- DOE/OFFICE OF SCIENCE (US)
- DOE Contract Number:
- AC02-98CH10886
- OSTI ID:
- 15009933
- Report Number(s):
- BNL-73208-2004-CP; R&D Project: PO-36; 1501020; TRN: US0406836
- Resource Relation:
- Conference: 11TH ADVANCED ACCELERATOR CONCEPTS WORKSHOP (AAC2004), STONY BROOK, NY (US), 06/21/2004--06/26/2004; Other Information: PBD: 25 Sep 2004
- Country of Publication:
- United States
- Language:
- English
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