Coherent Stacking Scheme for Inverse-Compton Scattering at MHz Repetition Rates

Conference · Fri Jun 01 00:00:00 EDT 2018 · No journal information

DOI:https://doi.org/10.18429/JACoW-IPAC2018-THPMF028· OSTI ID:1484264

Piot, Philippe ^[1]; Campese, Tara ^[2]; Mihalcea, Daniel ^[1]; Murokh, Alex ^[2]; Ruan, Jinhao ^[3]

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1. Northern Illinois U.; Fermilab
2. RadiaBeam Tech.
3. Fermilab

An experiment to produce 1-MeV gamma rays via Compton back-scattering of infrared photons on 250-MeV electron bunches is currently in preparation at the Fermilab Accelerator Science & Technology (FAST) facility. To increase the gamma-ray flux the energy of the infrared laser pulses are planned to be amplified within the interaction region using a resonant cavity. This passive amplifier composed of a Fabry-Perot cavity will allow the laser pulse bunches to coherently and constructively stack. Our estimates, based on theoretical models, show that the laser pulse energy can be increased from approximately 1-2 mJ at the exit of the last active amplifier to 5 -10 mJ at the interaction point when the laser repetition rate is set at the nominal value of 3 MHz. This paper details the cavity design option(s) and associated wave-optic simulations.

• Research Organization: Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States); Northern Illinois U.; RadiaBeam Tech.
• Sponsoring Organization: US Department of Energy
• DOE Contract Number: AC02-07CH11359
• OSTI ID: 1484264
• Report Number(s): FERMILAB-CONF-18-501-APC; oai:inspirehep.net:1689862
• Resource Type: Conference paper
• Conference Information: Journal Name: No journal information
• Country of Publication: United States
• Language: English

Related Subjects

43 PARTICLE ACCELERATORS