Partial focusing of coherent optical transition radiation and measurement of transverse size of femtosecond electron bunches
The simulation of coherent optical transition radiation (COTR) from femtosecond electron bunches was carried out on the basis of developed model. It is shown, that partial COTR field screening with the following focusing by a lens allows to increase spatial resolution and makes it possible to measure transverse bunch sizes to within a few microns. It is demonstrated that the most reasonable lens screening ratio equals to 50%. In that case, it becomes possible to get rid of the ring-like structure which is typically observed on bunch images as a result of coherence.
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Keywords
coherent optical transition radiation, electron beam, electron bunch, optical system, beam image, linear acceleratorsAuthors
| Name | Organization | |
| Gusvitskii T.M. | National Research Tomsk Polytechnic University | tmg3@tpu.ru |
| Potylitsyn A.P. | National Research Tomsk Polytechnic University | potylitsyn@tpu.ru |
References
Downer M.C. and Zgadzai R. // Rev. of Mod. Phys. - 2018. - V. 90. - P. 035002.
Алексеев Б.А., Потылицын А.П. // Изв. вузов. Физика. - 2018. - Т. 61. - № 11. - C. 117-121.
Wu Y., Zhu B., Li G., et al. // Sci. Rep. - 2018. - V. 8. - P. 15888.
Artru X., Chehab R., Honkavaara K., and Variola A. // Nucl. Instrum. Methods B. 1998. - V. 145. - P. 160-168.
Potylitsyn A., Sukhikh L., Gusvitskii T., et al. // Phys. Rev. Accel. Beams. - 2020. - V. 23. - P. 042804.
Potylitsyn A., Sukhikh L., Kube G., and Novokshonov A. // Opt. Express. - 2018. - V. 26. - P. 30231-30244.
Potylitsyn A. // Adv. Rad. Sources and Appl., NATO Science Series II: Mathematics, Physics and Chemistry. -2006. - V. 199. - P. 149-163.
Schroeder C.B., Esarey E., van Tilborg J., et al. // Phys. Rev. E. - 2004. - V. 69. - P. 016501.
Verzilov V.A. // Phys. Lett. A. - 2000. - V. 273. - Iss. 1-2. - P. 135-140.
