Speaker
Description
Laser Wakefield Acceleration (LWFA) is a highly promising, compact acceleration scheme capable of generating energetic, ultra-short, femtosecond-scale electron bunches (e-bunches). However, the extreme spatial and temporal scales inherent to LWFA e-bunches make their non-destructive, single-shot characterization exceptionally challenging. This presentation provides a comprehensive overview of utilizing coherent Smith-Purcell radiation (CSPR) as a robust, non-intercepting diagnostic pathway to address this challenge. When a charged particle bunch passes in close proximity to a periodic conductive structure, it excites surface currents that emit CSPR. Because the spectral intensity distribution of this radiation is directly linked to the bunch's longitudinal form factor, it allows for accurate bunch profile reconstruction. We will detail the theoretical underpinnings of CSPR generation within the context of LWFA e-bunch parameters and discuss practical methodologies to extract e-bunch structure from measured CSPR spectra.
| Working group | WG5 |
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