Speaker
Description
A non-invasive bunch length monitor based on Cherenkov diffraction radiation (ChDR) was initially designed for 150 MeV, sub-ps bunches and is now also being considered for the AWAKE Run 2c 18 MeV seed electron beam line to measure RMS bunch lengths in the ps range. The monitor consists of dielectric radiators that generate polarization radiation when an electron bunch passes in close proximity to them. Coherent ChDR emitted from the radiators is measured by zero-bias Schottky detectors operating in different frequency bands, enabling a relative measurement of the RMS bunch length. We present measurements performed at the CERN Linear Electron Accelerator for Research (CLEAR) characterising the bunch length dependence of the diode response across two frequency bands, 50-75 GHz and 90-140 GHz, for bunch lengths of 0.4-2.5 ps.
Funding Agency
Cockcroft Institute core grant
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| Supervisor's name | Guoxing Xia |
| Supervisor's email | guoxing.xia@manchester.ac.uk |
| Paper submission software | LATeX |