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  First observation of SASE radiation using the compact wide-spectral-range XUV spectrometer at FLASH2.

Tanikawa, T., Hage, A., Kuhlmann, M., Gonschior, J., Grunewald, S., Plonjes, E., et al. (2016). First observation of SASE radiation using the compact wide-spectral-range XUV spectrometer at FLASH2. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 830, 170-175. doi:10.1016/j.nima.2016.05.088.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-002B-7DE9-2 Version Permalink: http://hdl.handle.net/11858/00-001M-0000-002B-7DF0-0
Genre: Journal Article

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 Creators:
Tanikawa, T., Author
Hage, A., Author
Kuhlmann, M., Author
Gonschior, J., Author
Grunewald, S., Author
Plonjes, E., Author
Düsterer, S., Author
Brenner, G., Author
Dziarzhytski, S., Author
Braune, M., Author
Brachmanski, M., Author
Yin, Z.1, Author              
Siewert, F., Author
Dzelzainis, T., Author
Dromey, B., Author
Prandolini, M. J., Author
Tavella, F., Author
Zepf, M., Author
Faatz, B., Author
Affiliations:
1Research Group of Structural Dynamics of (Bio)Chemical Systems, MPI for biophysical chemistry, Max Planck Society, 15915              

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Free keywords: FEL; SASE; XUV; Spectrometer; AFM
 Abstract: The Free-electron LASer in Hamburg (FLASH) has been extended with a new undulator line FLASH2 in 2014. A compact grazing-incident wide-spectral-range spectrometer based on spherical-variable-line spacing (SVLS) gratings in the extreme ultraviolet (XUV) region was constructed to optimize and characterize the free-electron laser (FEL) performance at FLASH2. The spectrometer is equipped with three different concave SVLS gratings covering a spectral range from 1 to 62 nm to analyze the spectral characteristics of the XUV radiation. Wavelength calibration and evaluation of the spectral resolution were performed at the plane grating monochromator beamline PG2 at FLASH1 before the installation at FLASH2, and compared with analytical simulations. The first light using self-amplified spontaneous emission from FLASH2 was observed by the spectrometer during a simultaneous operation of both undulator lines-FLASH1 and FLASH2. In addition, the spectral resolution of the spectrometer was evaluated by comparing the measured spectrum from FLASH2 with FEL simulations.

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Language(s): eng - English
 Dates: 2016-05-242016-09-11
 Publication Status: Published in print
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 Rev. Method: Peer
 Identifiers: DOI: 10.1016/j.nima.2016.05.088
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Title: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Source Genre: Journal
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Pages: - Volume / Issue: 830 Sequence Number: - Start / End Page: 170 - 175 Identifier: -