Conveners
First Lasing, New FEL projects and Facility Reports: Session-1a
- Pawel Krawczyk (National Centre for Nuclear Research)
First Lasing, New FEL projects and Facility Reports: Session-1b
- Pawel Krawczyk (National Centre for Nuclear Research)
Compact free electron laser (FEL) technology enabled by plasma-based accelerators is a rapidly maturing technology with several milestone demonstrations in the last several years. Still, critical work is needed to bridge the gap from proof of concept experiments to reliable operation of laser plasma accelerator (LPA) driven FELs. At the BELLA Center, we have a dedicated facility equipped with...
Echo-enabled harmonic generation (EEHG) has been proposed as a seeding method for free-electron lasers but can also be employed to generate ultrashort radiation pulses at electron storage rings. With a twofold laser-electron interaction in two undulators (the modulators), each followed by a magnetic chicane, an electron phase space structure with a high harmonic content is produced, which...
A report on the LCLS-II first lasing will be presented.
The LCLS facilityreport, including FEL operations, new capabilities, and future development will be presented.
This talk presents the recent progress and operation status of the PAL-XFEL, focusing on the accelerator and beamline performance, along with recent developments. The facility is now accommodating approximately 70 user experiments annually. Significant efforts to improve FEL (Free Electron Laser) intensity have successfully increased pulse energies to over 2 mJ in SASE mode and 1 mJ in...
The COXINEL line has been designed at Synchrotron SOLEIL for electron beam manipulation in view of a seeded free electron laser using Laser plasma acceleration (LPA). After first studies on electron beam transport and undulator radiation in the spontaneous emission regime using LPA from Laboratoire d’Optique Appliquée (Ecole Polytechnique, France), the line has been moved to the HZDR,...
has been in operation since 2017. It features a superconducting linear accelerator capable of achieving a maximum energy of 17.5 GeV. The accelerator can deliver up to 27,000 electron bunches per second, distributed into ten equidistant short bursts, each lasting 600 microseconds. It simultaneously serves three FEL undulators, covering photon energy ranges from 300 eV to 30 keV, with pulse...
The UK is conducting a multi-stage project to analyse the case for major investment into XFELs, through either developing its own facility or by investing at existing machines. The project’s 2020 Science Case identified a clear need for ‘next-generation’ XFEL capabilities including near-transform limited x-ray pulses across a wide range of photon energies and pulse durations; evenly spaced...
The Shanghai Soft X-ray Free-Electron Laser (SXFEL) facility is the first X-ray FEL facility in China, completed in 2022 and officially opened for operation in 2023. It is based on a 1.5 GeV normal conducting high gradient C-band linac and currently contains two FEL beamlines and five experimental stations. The SXFEL can cover the whole water window range with the shortest wavelength of 2 nm....
FERMI was built as a facility using high-gain harmonic generation to provide coherent light down to the soft X-ray region of the spectrum. After some fourteen years of operation, a number of possibilities have been exploited that go beyond the simple control of the spectral quality of the emitted pulses. In fact, the seed has offered the possibility to control pulse duration and phase,...
At NCBJ in Otwock-Świerk a THz facility is under construction. It will deliver THz radiation in the frequency range from 0.5THz to 5THz (600μm - 60μm). Its superconducting cw-operating linac will provide electron bunches at energy up to 60 MeV and charge in the range of 20pC–250pC. In the first stage, electron bunches will be generated in a room temperature electron gun. For the second stage,...
We present the status of SwissFEL operation for the year 2023. It includes the performance and uptime statistics and the major causes of downtime. The progress in advance machine and results form user experiments are shown.
The FLASH facility is driven by a superconducting linac producing 5000 electron bunches per second (1 MHz burst @ 10 Hz) at a max. electron beam energy of 1.35 GeV. The bunches can be distributed between 2 FEL beamlines and a dedicated beamline for beam driven plasma acceleration research. With more than 8000 h of beam operation, of which roughly 4500 h are dedicated to user experiments, FLASH...
SACLA has continuously provided stable and high-quality XFEL light for users at three beamlines with a cumulative user operation time of more than 6,000 hours per year. Recently, the improvement of the hardware components, the installation of the various feedback controls, and the implementation of machine learning (ML) tools have enabled us to enhance the stability and to achieve a quick and...
Kyoto University Free Electron Laser (KU-FEL) facility has been developed for energy-related research by the Institute of Advanced Energy, Kyoto University. There are two accelerator-driven infrared coherent light sources in the facility. One is the oscillator-type FEL whose wavelength range is 3.4 to 26 micro-m[1]. The other one is the THz-Coherent Undulator Radiation (THz-CUR) source [2]...
SHINE is a high repetition rate X-ray FEL facility under construction in Shanghai, China. This facility is based on an 8 GeV CW superconducting linac and plans to build 3 X-ray FEL lines and 10 experimental stations in phase-I, covering the photon energy range of 0.4–25 keV. The groundbreaking of the SHINE project was made in April 2018, currently its constructions of civil engineering and...
Since FLASH first lasing at 2005, Free Electron Laser (FEL) has been proved a unique and essential EUV and X-ray source for basic research. However FEL could not serve as many users as Synchrotron Radiation source limited by total user beam time due to linear accelerator (LINAC) instead of storage ring. High repetition rate electron LINAC using superconducting cavity could increase the...
