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abstract:
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Radiation emitted by relativistic electrons traversing the
magnetic field gradients of a chicane bunch compressor has
been studied in an attempt to characterize coherent edge
radiation (CER). The studies performed at the Accelerator
Test Facility (ATF) at Brookhaven National Laboratory
(BNL) include frequency spectrum, angular distribution,
and polarization measurements. A reconstruction of
the longitudinal charge profile from the measured spectrum
shows that the bunch has been compressed to approximately
30 μm FWHM, with a peak current exceeding
1.5 kA. Measurements of radiation from the short pulses
are compared to predictions from QUINDI, a new simulation
code developed at UCLA to model the radiation.
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