ESI 2011 School on Instrumentation,ESRF, May 16, 2011

Anders Madsen for the projectanders.madsen@xfel.eu

The European X-Ray Free ElectronLaser (XFEL) project

XFEL Main Components 2

Anders Madsen, European XFEL

electron energy~1 – 20 GeV

photon energy0.01 – 25 keV

low emittance electron gun high energy electron accelerator (~2000m) SASE Undulators (~100-200m) photon beamlines and instruments (~1000m)

3SASE X-ray FEL RadiationFEL idea: line up electrons by interaction with x-ray field. This micro-bunching of the electron beam can happen when he undulator

is very long

Spontaneous radiation Coherent radiation

dE = -e vx(t) Ex(t) dtphase Ex(t), vx(t) const. ⇒ acceleration & deceleration

Anders Madsen, European XFEL

4The World’s Most Powerful X-ray Source

Anders Madsen, European XFEL

Photons per phasespace volume and bandwidth element

⇒ Ultrafast pulses Coherence High intensities

5

A Top View, Hamburg-Bahrenfeld and Schenefeld Sites

Anders Madsen, European XFEL

6An Overview

International research infrastructure for the application of soft & hard X-ray FEL radiation in user experiments by a multi-disciplinary science community.

FEL characteristics X-ray range 0.3 – ~25 keV pulse duration 5 – 100 fs rep. rates 10 Hz/4.5 MHz (27.000 pulses/s)

First beam 2014 & Operation by end 2015

SASE 1 planar 0.1 nm

e-

electrons

17.5 GeV

Expe

rimen

ts

SASE 3 tunable, planar

0.4 – 1.6 nm

e- SASE 2

tunable, planar ~0.15 – 0.4 nm

1.2 – 4.9 nm (10 GeV)

accelerator ~1700 m

undulator ~200 m

beam transport & instruments ~1000 m

Anders Madsen, European XFEL

7An Underground View

Anders Madsen, European XFEL

8

Civil Construction, Experimental FacilitiesSchenefeld Site

Anders Madsen, European XFEL

9The Suite of Experimental Stations

SASE 2

SASE 1

SASE 3

U 1

U 2

SQS SCS

SPB FXE

MID HED

Anders Madsen, European XFEL

FXE Femtosecond X-rayExperiments

SPB Single Particle &Biomolecules

SQS Small QuantumSystems

SCS Spectroscopy &Coherent Scattering

MID Materials Imaging &Dynamics

HED High EnergyDensity Science

Talk by A. Mancuso on Thursday