The NEPTUNE Facility for 2nd Generation Advanced Accelerator Experiments

Details The NEPTUNE Facility for 2nd Generation Advanced Accelerator Experiments The NEPTUNE Facility for 2nd Generation Advanced Accelerator Experiments

May 1997

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997aps..pac..7v16c&link_type=abstract

American Physical Society, Particle Acceleration Meeting, May 12-16, 1997, abstract #7V.16

Physics

Scientific paper

The NEPTUNE Laboratory, under construction at UCLA, will be a user facility for exploring concepts useful for advanced accelerators. The programmatic goal for the laboratory is to inject extremely high quality electron bunches into a laser-driven plasma beat wave accelerator (PBWA) and explore ideas for extracting a high quality (Δ E/E < 0.1, ɛ n < 10 π mm-mrad), high energy (100 MeV) beam from a plasma structure operating at about 1 THz and about 3 GeV/m. The lab will combine an upgraded MARS CO2 laser and the state-of-the-art SATURNUS RF gun and linac. The new MARS laser will be about 1 TW (100 J, 100 ps), up from 0.2 TW (70 J, 350 ps). This allows for doubling the spot size at the IP and quadrupling the interaction length while still driving gradients of 3 GeV/m. The SATURNUS gun will be upgraded to the Brookhaven 1.6 cell design. A novel, multicell Plane-Wave Transformer RF gun is also under development. A sync-pumped, sub-ps dye laser is available to directly produce ultrashort electron pulses (1/5 of an accelerating bucket). Part of the research program will be devoted to studying pulse compression and phase-locking techniques at these ultrahigh frequencies and diagnosing microbunches generated by such structures. Finally, shaped electron pulses will be studied for the electron driven Plasma Wakefield Accelerator (PWFA) concept.

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