Comparison of Coherent Smith-Purcell radiation and Coherent Transition Radiation

TL;DR

This paper compares Smith-Purcell and Transition Radiation in particle accelerators, analyzing their yields and applications as bunch length monitors, with specific focus on the CLIO Free Electron Laser.

Contribution

It provides a comparative analysis of the yield and effectiveness of Smith-Purcell and Transition Radiation for bunch length measurement in accelerators.

Findings

Both radiations can be enhanced with short pulses.

The study evaluates background filtering techniques.

Application to CLIO FEL demonstrates practical relevance.

Abstract

Smith-Purcell radiation and Transition Radiation are two radiative phenomenon that occur in charged particles accelerators. For both the emission can be significantly enhanced with sufficiently short pulses and both can be used to measure the form factor of the pulse. We compare the yield of these phenomenon in different configurations and look at their application as bunch length monitors, including background filtering and rejection. We apply these calculations to the specific case of the CLIO Free Electron laser.