17–22 May 2026
C.I.D
Europe/Zurich timezone

Studying Coherent Transition Radiation Spatial Image Features for Bunch Length Diagnostics

WEP6087
20 May 2026, 16:00
2h
C.I.D

C.I.D

Deauville, France
Poster Presentation MC6.T03: Beam Diagnostics and Instrumentation Poster session

Speaker

Ana Guisao-Betancur (University of Liverpool, Cockcroft Institute)

Description

Coherent transition radiation (CTR) has been widely used for developing diagnostics of particle beams due to its broadband spectrum, which provides information on the particle distribution, and its relatively simple experimental setup compared to other sources of coherent radiation. For short and ultrashort electron bunches, ps- to fs-long, methods such as CTR spectrometry and interferometry have been used. Recently, an alternative method using point-to-point spatial imaging of the transition radiation source plane has been studied, showing promising results in which image features, such as the image width, can be tied to the bunch length. However, a more in-depth image analysis is required. In this work, an attempt is made to model some of the bunch profile features from the CTR spatial images using conventional image and data analysis techniques. The CTR spatial images are simulated in Ansys Zemax OpticStudio for a broad range of bunch profiles, from single-Gaussian to multi-Gaussian distributions that emulate more realistic bunches. The results form the basis for the next stage of analysis of experimental CTR images for retrieving the longitudinal bunch profile.

Funding Agency

EU’s Horizon Europe research and innovation no. 101073480, UKRI guarantee funds, and no. 101188004; Cockcroft Institute core grant no. STFC ST/V001612/1, AWAKE-UK phase II no. STFC ST/X005208/1.

In which format do you inted to submit your paper? LaTeX

Author

Ana Guisao-Betancur (University of Liverpool, Cockcroft Institute)

Co-authors

Prof. Carsten Welsch (University of Liverpool, Cockcroft Institute) Joseph Wolfenden (University of Liverpool, Cockcroft Institute)

Presentation materials

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