JACoW is a publisher in Geneva, Switzerland that publishes the proceedings of accelerator conferences held around the world by an international collaboration of editors.
@unpublished{popov:icalepcs2021-tupv018,
author = {K. Popov and A. Aryshev and N. Terunuma and J. Urakawa},
title = {{KEK LUCX facility Laser-to-RF&RF-to-RF stability study and optimization}},
booktitle = {Proc. ICALEPCS'21},
language = {english},
intype = {presented at the},
series = {International Conference on Accelerator and Large Experimental Physics Control Systems},
number = {18},
venue = {Shanghai, China},
publisher = {JACoW Publishing, Geneva, Switzerland},
month = {03},
year = {2022},
note = {presented at ICALEPCS'21 in Shanghai, China, unpublished},
abstract = {{KEK LUCX facility* is a linear accelerator devoted to the beam instrumentation R&Ds for present and future accelerator systems and colliders including ILC. According to the ILC TDR**, it is necessary to achieve RF-gun Laser-to-RF&RF-to-RF phase stability of 0.35°(RMS) and amplitude stability of 0.07%(RMS) with implementation of the Digital LLRF feedback based on commercially available FPGA board and digital trigger system. As the first step to achieve ILC stability level at KEK-LUCX facility, present Laser-to-RF&RF-to-RF phase and amplitude jitters were measured using time- and frequency-domain techniques. After that, jitter influence on beam parameters after RF-gun and main solenoid magnet was simulated with ASTRA tracking code*** and results were cross-checked during LUCX facility beam operation. Finally, stable digital trigger system and digital LLRF feedback based on HighLand Technology T564 and RedPitaya SIGNALlab-250 modules were implemented. This report demonstrates the results of Laser-to-RF&RF-to-RF phase and amplitude jitter measurements cross-checked with ASTRA simulation and real beam parameters measurements before and after LUCX facility stabilization.}},
}