ELI Beamlines
Gammatron

The Gammatron beamline in E2 experimental hall at ELI Beamlines delivers ultrashort X-ray pulses with X-ray photon energies ranging from 1 keV up to 1 MeV with 10^8 photons in pulses of a few femtosecond duration. Moreover, these pulses can be precisely synchronized with the pump pulse which is split from the Gammatron main driving laser pulse. The Gammatron beamline enables two modes of operation:

1) The betatron source with the following features: broadband spectrum (1 – 100 keV), low divergence beam (< 20 mrad), small source size (~μm), short pulse duration (a few fs).

2) The Compton source with a broadband or quasi-monochromatic (at least 10% ΔE/E) spectrum (few tens of keV to few MeV). Beam divergence, source size, and pulse duration are comparable to the case of betatron.

Gammatron beamline is driven by the HAPLS L3 laser system, which is why there will be a single shot mode, followed by 3 Hz repetition rate mode and eventually 10 Hz repetition rate mode of operation depending on the development stage of the laser system.


Laser-based light source parameters

Gammatron

Source type
Laser–driven betatron and inverse Compton scattering source
Peak Photon energy / central wavelenght
50000 [eV]
Spectral Bandwidth FWHM / %
30 - 80 [keV]
Beam shape
Gaussian
Pulse duration FWHM
10 [fs]
Polarisation
Linear Vertical
Pulse repetition rate
10 [Hz]
Maximum pulse energy
0.0008 [mJ]
Peak power
80000000 [W]
Source size (spot)
X = 5 [um], Y = 5 [um]
Note
The photon energy/central wavelength is highly tunable.
Spectral bandwidth (FWHM): 30 keV – 80 keV broadband synchrotron-like radiation, highly tunable.
Tunability: 1 keV – 1 MeV critical X-ray photon energy of the synchrotron-like spectrum. linear polarization. Pulse repetition rate: 3 to 10 Hz.
Source size: Circular spot with a diameter of 5 um.
Detectors

Electron pointing monitor

Passive or Active (Electronics)
Active

Detection

Detected Particle
Electron

High energy X-ray photon spectrometer based on Ross filters

Passive or Active (Electronics)
Active

Detection

Detected Particle
Photon

Magnetic electron spectrometer

Passive or Active (Electronics)
Active

Detection

Detected Particle
Electron

Single photon counting X-ray spectrometer

Passive or Active (Electronics)
Active

Detection

Detected Particle
Photon

VIS spectrometer

Passive or Active (Electronics)
Active

Detection

Detected Particle
Photon
contacts
User office
Techniques
Absorption
  • EXAFS
  • NEXAFS
  • Time-resolved studies
Imaging
  • Medical application
  • X-ray microscopy
  • X-ray tomography
Scattering
  • Nuclear resonant scattering
  • Time-resolved scattering
Disciplines
Life Sciences & Biotech
  • Molecular and cellular biology
Physics
  • Atomic & molecular physics
  • High energy & particle physics
control/Data analysis
Control Software Type
  • Andor SOLIS, Princeton Instruments Lightfield, IDS Software Suite
Data Output Type
  • Spectroscopy scientific imaging data, CCD camera images
Data Output Format
  • .SPE, .SIF, .TIF,
Softwares For Data Analysis
  • Mathworks MATLAB, ImageJ, Andor Solis, Princeton Instruments Lightfield