Demonstration of Cascaded Modulator-Chicane Microbunching of a Relativistic Electron Beam
- Univ. of California, Los Angeles, CA (United States)
- Brookhaven National Lab. (BNL), Upton, NY (United States)
Here, we present results of an experiment showing the first successful demonstration of a cascaded microbunching scheme. Two modulator-chicane prebunchers arranged in series and a high power mid-IR laser seed are used to modulate a 52 MeV electron beam into a train of sharp microbunches phase locked to the external drive laser. This configuration is shown to greatly improve matching of the beam into the small longitudinal phase space acceptance of short-wavelength accelerators. We demonstrate trapping of nearly all (96%) of the electrons in a strongly tapered inverse free-electron laser accelerator, with an order-of-magnitude reduction in injection losses compared to the classical single-buncher scheme. These results represent a critical advance in laser-based longitudinal phase space manipulations and find application in high gradient advanced acceleration as well as in high peak and average power coherent radiation sources.
- Research Organization:
- Brookhaven National Laboratory (BNL), Upton, NY (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Nuclear Physics (NP); USDOE
- Grant/Contract Number:
- SC0012704; SC0009914
- OSTI ID:
- 1436279
- Alternate ID(s):
- OSTI ID: 1426327
- Report Number(s):
- BNL-203625-2018-JAAM; PRLTAO; TRN: US1900167
- Journal Information:
- Physical Review Letters, Vol. 120, Issue 11; ISSN 0031-9007
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Web of Science
An inverse free electron laser acceleration-driven Compton scattering X-ray source
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journal | January 2019 |
High-Brightness Beam Technology Development for a Future Dynamic Mesoscale Materials Science Capability
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journal | September 2019 |
An inverse free electron laser acceleration-driven Compton scattering X-ray source | preprint | January 2017 |
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