Speaker
Description
Compact Inverse Compton Scattering (ICS) sources offer tunable radiation in the X-ray spectral range essential for a wide range of scientific and technological applications. Unfortunately, their utility is limited by low brightness compared to large-scale facilities, resulting from the small scattering cross-section and large emission opening angle. Here, we present two synergistic strategies to overcome this limitation. First, a shallow-angle scattering geometry enhances brightness with spectral control independent of electron beam energy. Recent experiments at the UCLA Pegasus laboratory, including the demonstration of shallow-angle ICS and the observation of the relativistic Brewster effect will be discussed. Second, the superradiant regime is explored, promising an orders-of-magnitude increase in brightness by spatially structuring the electron beam at the radiation wavelength scale. Building on the flexibility of spectral tuning by crossing angle, we will show that superradiant ICS can be achieved via inverse free electron laser bunching. This approach will be exploited in our upcoming experiment at the Accelerator Test Facility at Brookhaven National Laboratory.
| Working group | WG6 |
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