Joe Frisch: Synchrotron radiation sources and free ... - Conferences

X-ray Beam Parameters
• Energy / Wavelength:
– ~100eV to ~100 KeV (12nm to 0.012nm)
typical range of interest
• X1000 Wavelength range
• Pulse structure:
– Room temperature FEL:
• 100fs at 100Hz (10 -11 ) duty factor
– Storage rings
• ~3ps at 300MHz (10 -3 ) duty factor
• Linewidth
– Typically 0.1% to 1% at source,
monochromators used to reduce linewidth for
experiments.
– Synchrotron sources typically have a large
harmonic content
– Future seeded FELs and oscillators may have
much narrower linewidths.
• Beam transverse phase space (ΔxΔx’ΔyΔy’)
– Limited by diffraction limit at the operating
wavelength
3