Specifications of the FHI FEL
The following posters describing details and specifications of the FHI FEL have been presented at conferences:
- 2013: Control System Overview, presented at the 14th International ICALEPCS Conference
- 2013: System Overview, presented at the 35th International Free-Electron Laser Conference
- 2013: Control System Integration, presented at the 35th International Free-Electron Laser Conference
- 2011: Poster, presented at the 2nd International Particle Accelerator Conference
The electron beamline:
Parameter | Unit | Target | |
---|---|---|---|
Electron energy | MeV | 15-50 | |
Energy spread | keV | <50 | |
Charge per pulse | pC | >200 | |
Micropulse length | psec | 1-10 | |
Micropulse repetition rate | GHz | 1 | |
Macropulse length | µs | 1-15 | |
Macropulse repetition rate | Hz | 20 |
The undulator:
The ondulator is a permanent magnet, wedged pole undulator with a variable gap from STI Optronics.
Type | Planar hybrid | |
---|---|---|
Material | NdFeB | |
Period (mm) | 40 | |
Length (m) | 2 | |
Krms | 0.5 - 1.6 |
The emitted light:
![original](/232587/original-1570722024.jpg?t=eyJ3aWR0aCI6MjQ2LCJvYmpfaWQiOjIzMjU4N30%3D--e88b31a6767c89c751cdb8881ba98e699440c66f)
Macro-pulse energies for narrow bandwidth conditions (< 1% relative full width at half maximum) at various electron energies
![original](/232624/original-1570722024.jpg?t=eyJ3aWR0aCI6MjQ2LCJvYmpfaWQiOjIzMjYyNH0%3D--8667218f19917a16aa58078b65ea9ee623b1f1bd)
The data plotted as a function of the wavelength (linear scale):
![original](/233116/original-1570773676.jpg?t=eyJ3aWR0aCI6MjQ2LCJvYmpfaWQiOjIzMzExNn0%3D--935ffd6c1183f6c80aa1a41baffbaa9540b9c8c3)
The data plotted as a function of the wavelength (logarithmic scale):