19–24 May 2024
Music City Center
US/Central timezone

Field mapping of CO2-laser-driven LWFA in blowout regime using electron beam probe at low density

MOPR59
20 May 2024, 16:00
2h
Rock 'n Roll (MCC Exhibit Hall A)

Rock 'n Roll

MCC Exhibit Hall A

Poster Presentation MC3.A22 Plasma Wakefield Acceleration Monday Poster Session

Speaker

Apurva Gaikwad (Stony Brook University)

Description

Laser wakefield accelerators (LWFAs) have been experimentally shown to produce sustained gradients of tens of GeV/m over tens of centimeters. While the strength of these fields has been demonstrated, a direct measurement of the field configurations inside an LWFA represents an emerging research topic. Here, we report on the results of transverse probing of the fields inside an LWFA at densities of 1e+15 — 1e+17 1/cm3, corresponding to plasma wavelengths in the range of several hundred microns. The LWFA is driven by BNL Accelerator Test Facility’s unique long-wave-infrared CO2 laser (9.2 μm) pulse, which currently generates 2 ps long pulses at 2-3 TW. The linac-produced electron beam has an energy of 50-60 MeV and about a 200 fs long bunch length. A YAG:Ce scintillator placed on a translation stage records the electron beam density profile at distances of up to 10 cm from the plasma. Particle-In-Cell Simulations using OSIRIS are used to corroborate the results of the experiment.

Funding Agency

We acknowledge the support by U.S. Department of Energy, Office of Science under Award No. DE-SC-0014043.

Region represented North America

Primary author

Apurva Gaikwad (Stony Brook University)

Co-authors

Brianna Romasky (Brookhaven National Laboratory) Chan Joshi (University of California, Los Angeles) Chaojie Zhang (University of California, Los Angeles) Evan Trommer (Stony Brook University) Igor Pogorelsky (Brookhaven National Laboratory) Irina Petrushina (State University of New York at Stony Brook) Karl Kusche (Brookhaven National Laboratory) Kyle Miller (University of California, Los Angeles) Marcus Babzien (Brookhaven National Laboratory) Mark Palmer (Brookhaven National Laboratory) Michael Downer (The University of Texas at Austin) Mikhail Fedurin (Brookhaven National Laboratory) Mikhail Polyanskiy (Brookhaven National Laboratory) Navid Vafaei-Najafabadi (Stony Brook University) Rafal Zgadzaj (The University of Texas at Austin) Roman Samulyak (Brookhaven National Laboratory) Rotem Kupfer (Brookhaven National Laboratory) Vladimir Litvinenko (Stony Brook University) William Li (Brookhaven National Laboratory) Yipeng Wu (University of California, Los Angeles)

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