Extension of self-seeding to hard X-RAYS > 10 keV as a way to increase user access at the european XFEL

G. Geloni, V. Kocharyan, E. Saldin

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

We propose to use a self-seeding scheme with single crystal monochromator at the European X-ray FEL to produce monochromatic, high-power radiation at 16 keV. The FEL power of the transform-limited pulses can reach about 100 GW by exploiting tapering in the tunable-gap baseline undulator. The combination of high photon energy, high peak power, and very narrow bandwidth opens a new range of applications, and allows to increase the user capacity and exploit the high repetition rate of the European XFEL. Dealing with monochromatic hard X-ray radiation one may use crystals as deflectors with minimum beam loss. To this end, a photon beam distribution system based on the use of crystals in the Bragg reflection geometry is proposed for future study and possible extension of the baseline facility. They can be repeated a number of times to form an almost complete (one meter scale) ring with an angle of 20 degrees between two neighboring lines. The reflectivity of crystal deflectors can be switched fast enough by flipping the crystals with piezo-electric devices. It is then possible to distribute monochromatic hard X-rays among 10 independent instruments. More details can be found in [1].

Original languageEnglish
Title of host publicationFEL 2012 - 34th International Free Electron Laser Conference
Pages253-256
Number of pages4
Publication statusPublished - 2012
Externally publishedYes
Event34th International Free Electron Laser Conference, FEL 2012 - Nara, Japan
Duration: 26 Aug 201231 Aug 2012

Publication series

NameFEL 2012 - 34th International Free Electron Laser Conference

Conference

Conference34th International Free Electron Laser Conference, FEL 2012
CountryJapan
CityNara
Period26.8.1231.8.12

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

Fingerprint Dive into the research topics of 'Extension of self-seeding to hard X-RAYS > 10 keV as a way to increase user access at the european XFEL'. Together they form a unique fingerprint.

Cite this