We present the optimization of the working point with a Gaussian temporal profile for the SPARC photoinjector. Start to end simulations starting from a Gaussian electron beam pulse shape are discussed here, in comparison with the nominal working point performances of a 10ps flat top pulse with rise time of 1ps . Machine parameters have been optimized for the Gaussian pulse shaping both for the standard operating conditions and for the radio-frequency (RF) compressor configuration. In particular, compression factors (C) 2 and 4 have been studied in details. Simulations have been performed using the codes PARMELA  and GENESIS , for the beam transport along the photoinjector and for the FEL/SASE process respectively. The two pulse shapes we considered, Gaussian and rectangular with rise time of 1 ps, provide the same saturation length and average power of radiation emitted in the undulator, but the higher current in the beam core of the Gaussian pulse gives a higher peak radiation power at the cost of a broader radiation spectrum. These simulations were performed to investigate thoroughly one of the possible operating modes of the SPARC laser system, which naturally produces such Gaussian shaped pulses. © 2005 IEEE.
|Publication status||Published - 2005|
|Event||Particle Accelerator Conference, PAC 2005 - , United States|
Duration: 1 Jan 2005 → …
|Conference||Particle Accelerator Conference, PAC 2005|
|Period||1/1/05 → …|
All Science Journal Classification (ASJC) codes
Boscolo, M., Ferrario, M., Fusco, V., Migliorati, M., Ronsivalle, C., & Reiche, S. (2005). Sparc working point optimization for a bunch with gaussian temporal profile. Paper presented at Particle Accelerator Conference, PAC 2005, United States. https://doi.org/10.1109/PAC.2005.1590723