E. J. Divall
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View article: Correlation of refractive index based and THz streaking arrival time tools for a hard X-ray free-electron laser
Correlation of refractive index based and THz streaking arrival time tools for a hard X-ray free-electron laser Open
To fully exploit ultra-short X-ray pulse durations routinely available at X-ray free-electron lasers to follow out-of-equilibrium dynamics, inherent arrival time fluctuations of the X-ray pulse with an external perturbing laser pulse need …
View article: Arrival time fluctuation of the SwissFEL photocathode laser: characterization by a single color balanced cross correlator
Arrival time fluctuation of the SwissFEL photocathode laser: characterization by a single color balanced cross correlator Open
The arrival time jitter and drift of the photocathode drive laser has an important impact on the performance of a Free-Electron-Laser (FEL). It adversely affects the beam energy jitter, bunch length jitter and bunch arrival time jitter, wh…
View article: Hard X-ray transient grating spectroscopy on bismuth germanate
Hard X-ray transient grating spectroscopy on bismuth germanate Open
View article: Author Correction: Hard X-ray transient grating spectroscopy on bismuth germanate
Author Correction: Hard X-ray transient grating spectroscopy on bismuth germanate Open
View article: Overview of SwissFEL dual-photocathode laser capabilities and perspectives for exotic FEL modes
Overview of SwissFEL dual-photocathode laser capabilities and perspectives for exotic FEL modes Open
SwissFEL is a compact, high-brilliance, soft and hard X-ray free electron laser (FEL) facility that started user operation in 2019. The facility is composed of two parallel beam lines seeded by a common linear accelerator (LINAC), and a tw…
View article: Loss monitoring for undulator protection at SwissFEL
Loss monitoring for undulator protection at SwissFEL Open
At the x-ray free-electron laser SwissFEL, at the Paul Scherrer Institute, Switzerland, beam loss monitors are used to determine loss positions along the linear accelerator and protect critical elements such as the undulator magnets from e…
View article: Optical second harmonic generation in LiB<sub>3</sub>O<sub>5</sub> modulated by intense femtosecond X-ray pulses
Optical second harmonic generation in LiB<sub>3</sub>O<sub>5</sub> modulated by intense femtosecond X-ray pulses Open
Many of the scientific applications for X-ray free-electron lasers seek to exploit the ultrashort pulse durations of intense X-rays to obtain femtosecond time resolution of various processes in a “pump-probe” scheme. One of the limiting fa…
View article: SwissFEL Control System - Overview, Status, and Lessons Learned
SwissFEL Control System - Overview, Status, and Lessons Learned Open
The SwissFEL is a new free electron laser facility at the Paul Scherrer Institute (PSI) in Switzerland. Commissioning started in 2016 and resulted in first lasing in December 2016 (albeit not on the design energy). In 2017, the commissioni…
View article: SwissFEL: The Swiss X-ray Free Electron Laser
SwissFEL: The Swiss X-ray Free Electron Laser Open
The SwissFEL X-ray Free Electron Laser (XFEL) facility started construction at the Paul Scherrer Institute (Villigen, Switzerland) in 2013 and will be ready to accept its first users in 2018 on the Aramis hard X-ray branch. In the followin…
View article: Femtosecond resolution timing jitter correction on a TW scale Ti:sapphire laser system for FEL pump-probe experiments
Femtosecond resolution timing jitter correction on a TW scale Ti:sapphire laser system for FEL pump-probe experiments Open
Intense ultrashort pulse lasers are used for fs resolution pump-probe experiments more and more at large scale facilities, such as free electron lasers (FEL). Measurement of the arrival time of the laser pulses and stabilization to the mac…
View article: Femtosecond resolution timing jitter correction on a TW scale Ti:sapphire laser system for FEL pump-probe experiments
Femtosecond resolution timing jitter correction on a TW scale Ti:sapphire laser system for FEL pump-probe experiments Open
Intense ultrashort pulse lasers are used for fs resolution pumpprobe experiments more and more at large scale facilities, such as free electron lasers (FEL). Measurement of the arrival time of the laser pulses and stabilization to the mach…
View article: Overview and Status of the SwissFEL Project at PSI
Overview and Status of the SwissFEL Project at PSI Open
Recently, the installation of the components for the free electron laser SwissFEL has started at the Paul Scherrer Institute (PSI). In March 2016, beginning of the injector commissioning is planned and first lasing is foreseen a year later…