Methods for the spatio-temporal shaping of photocathode laser pulses for generating high brightness electron beams in modern linear accelerators are discussed. The possibility of forming triangular laser pulses and quasi-ellipsoidal structures is analyzed. The proposed scheme for generating shaped laser pulses was realised at the Institute of Applied Physics (IAP) RAS. Currently, a prototype of the pulse shaping laser system is installed at the Photo Injector Test facility at DESY, Zeuthen site (PITZ). Preliminary experiments on electron beams generation using ultraviolet laser pulses from this system were carried out at PITZ, in which electron bunches with 0.5 nC charge and a transverse normalized emittance of 1.1 mm mrad were obtained. A new scheme for the three-dimensional shaping of laser beams using a volume Bragg grating is proposed at IAP RAS and is currently being tested for further electron beam generation experiments at the PITZ photoinjector.
Keywords: 3D shaping of laser pulses, photoinjector, linear electron accelerator, generation and acceleration of electron beams, normalized transverse emittance PACS:29.20.−c, 29.27.Ac, 42.60.By, 42.60.−v (all) DOI:10.3367/UFNe.2017.03.038143 URL: https://ufn.ru/en/articles/2017/10/g/ 000419110600007 2-s2.0-85040942847 2017PhyU...60.1039M Citation: Mironov S Yu, Andrianov A V, Gacheva E I, Zelenogorsky V V, Potemkin A K, Khazanov E A, Boonpornprasert P, Gross M, Good J D, Isaev I, Kalantaryan D, Kozak T, Krasilnikov M, Qian H, Li X, Lishilin O, Melkumyan D, Oppelt A, Renier Y, Rublack T, Felber M, Huck H, Chen Y L, Stephan F "Spatio-temporal shaping of photocathode laser pulses for linear electron accelerators" Phys. Usp.60 1039–1050 (2017)
@article{Mironov:2017,author = {S. Yu. Mironov and A. V. Andrianov and E. I. Gacheva and V. V. Zelenogorsky and A. K. Potemkin and E. A. Khazanov and P. Boonpornprasert and M. Gross and J. D. Good and I. Isaev and D. Kalantaryan and T. Kozak and M. Krasilnikov and H. Qian and X. Li and O. Lishilin and D. Melkumyan and A. Oppelt and Y. Renier and T. Rublack and M. Felber and H. Huck and Y. L. Chen and F. Stephan},title = {Spatio-temporal shaping of photocathode laser pulses for linear electron accelerators},publisher = {Physics-Uspekhi},year = {2017},journal = {Phys. Usp.},volume = {60},number = {10},pages = {1039-1050},url = {https://ufn.ru/en/articles/2017/10/g/},doi = {10.3367/UFNe.2017.03.038143}}
Received: 16th, May 2017, accepted: 1st, March 2017