| 1. |
- Curbis, F., et al.
(author)
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Status of the soft X-ray laser (SXL) project at the Max IV laboratory
- 2019
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In: Proceedings of the 39th International Free-Electron Laser Conference, FEL 2019. - : JACoW Publishing. - 9783954502103 ; , s. 749-752
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Conference paper (peer-reviewed)abstract
- A Soft X-ray Laser project (the SXL) aiming to produce FEL radiation in the range of 1 to 5 nm is currently in a conceptual design phase and a report on the design is expected to be delivered by March 2021. The FEL will be driven by the existing 3 GeV linac at MAX IV laboratory, which also serves as injector for the two storage rings. The science case has been pushed by a large group of mainly Swedish users and consists of experiments ranging from AMO physics to condensed matter, chemistry and imaging in life science. In this contribution, we will present the current conceptual design of the accelerator and the FEL operation modes together with a general overview of the beamline and experimental station. In particular design options for the FEL will be discussed in conjunction with the features of the electron beam from the MAX IV linac and the connection with the proposed experiments.
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| 2. |
- Pop, Mihai, et al.
(author)
-
Characterization of FEL spectra using specific figures of merit
- 2019
-
In: Proceedings of the 39th International Free-Electron Laser Conference, FEL 2019. - 9783954502103 ; , s. 388-391
-
Conference paper (peer-reviewed)abstract
- There is an increasing demand from the user community for high quality FEL radiation. The spectrum of this radiation can prove to be a useful tool in characterizing the FEL process. Starting from a tool initially developed at FERMI we extend its capabilities to be able to analyze the modal components of the FEL spectrum. In this paper we will describe and compare two different figures of merit and offer initial bench-marking with respect to classic figure of merit for spectra such as FWHM and RMS.
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| 3. |
- Pop, Mihai, et al.
(author)
-
Considerations on implementing EEHG with a strong linear chirp
- 2019
-
In: Proceedings of the 39th International Free-Electron Laser Conference, FEL 2019. - 9783954502103 ; , s. 262-265
-
Conference paper (peer-reviewed)abstract
- Due to the stochastic nature of SASE radiation its longitudinal coherence is limited to a small fraction of the electron bunch. By pre-bunching the electrons before entering a radiator, the FEL radiation is ensured to have the same initial phase all through the bunch. Echo enabled harmonic generation (EEHG) is a technique that, by cleverly using two modulators and two dispersive sections, creates microbunches of electrons at a high harmonic of the seed laser used in the modulators. In this paper we will present some of the challenges of using this technique in combination with a strongly chirped beam and indicate a few ways to overcome said challenges.
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| 4. |
- Qin, W., et al.
(author)
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Advanced concepts in the design for the soft X-ray FEL at Max IV
- 2019
-
In: Proceedings of the 39th International Free-Electron Laser Conference, FEL 2019. - 9783954502103 ; , s. 214-217
-
Conference paper (peer-reviewed)abstract
- A Soft X-ray FEL (the SXL) is currently being designed at the MAX IV Laboratory. In the work to adapt the FEL to the scientific cases several advanced options are being studied for coherence enhancement, generation of short pulses and two-color pulses. We will discuss the current status and initial results of the schemes studied, especially regarding the FEL performance with the features of the MAX IV linac, including a positive energy chirp.
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| 5. |
- Qin, W., et al.
(author)
-
Start-to-end simulations for the soft X-ray FEL at the Max IV laboratory
- 2019
-
In: Proceedings of the 39th International Free-Electron Laser Conference, FEL 2019. - 9783954502103 ; , s. 210-213
-
Conference paper (peer-reviewed)abstract
- A Soft X-ray FEL (the SXL) using the existing 3 GeV linac at the MAX IV Laboratory is currently in the design phase. In this contribution, start-to-end simulations, including the photo-injector simulations using ASTRA, the linac simulations using ELEGANT and the FEL simulations using GENESIS, are presented for 100 pC and 10 pC operation modes. The features of the electron beam from the MAX IV linac and their impact on the FEL performance are discussed.
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