20–24 Oct 2025
ADEIT
Europe/Zurich timezone

Study of laser-beam arrival time synchronization towards sub-picosecond stability level

23 Oct 2025, 09:40
20m
Aula 1.3 (ADEIT)

Aula 1.3

ADEIT

Talk Damping rings, Beam dynamics, Beam delivery systems Damping rings, Beam dynamics, Beam delivery systems

Speaker

KONSTANTIN POPOV (High Energy Accelerator Research Organization (KEK))

Description

In order to achieve laser pulse to electron beam arrival time with sub-
picosecond stability at the accelerator facilities, a new Low-Level Radio-
Frequency system is currently under investigation in collaboration between KEK
(Japan) and IJClab (France). This clock generators synchronization architecture is
based on 10 MHz frequency generator (Stanford Research System), White Rabbit
Switch (Low noise, Seven Solutions), SkyWorks Si5362 clock generator and
IDROGEN carrier boards with embedded White Rabbit node. This architecture
application to the large scale accelerator facilities low-noise Low-Level RF
systems are under detailed investigation at the KEK Accelerator Test Facility and
SuperKEKB.
This report demonstrates the measurement results of the long-term and short-
term synchronization between clock generators. Also, the architecture and its
application implementation details are discussed. Moreover, the architecture
applications of the RF clock transfer over long-distance for the large-scale
accelerator facilities are investigated.

Author

KONSTANTIN POPOV (High Energy Accelerator Research Organization (KEK))

Co-authors

Alexander Aryshev (KEK) Mr Antoine Back (Paris-Saclay University, CNRS/IN2P3, IJClab) Aurélien Martens Mr Cedric Esnault (Paris-Saclay University, CNRS/IN2P3, IJClab) Mr Daniel Charlet (Paris-Saclay University, CNRS/IN2P3, IJClab) Hiroshi Kaji (High Energy Accelerator Research Organization (KEK)) Prof. Tetsuya Kobayashi (High Energy Accelerator Research Organization (KEK))

Presentation materials