Page 124 - High Power Laser Handbook

94 G a s , C h e m i c a l , a n d F r e e - E l e c t r o n L a s e r s High-Power Fr ee-Electr on Lasers 95

Full scale Novosibirsk FEL (bottom view)

Four tracks in horizontal plane with two IR
FELs (under construction)

Lasing (2)
Common for all FELs
accelerating system
(exists)
Lasing (4)
One track in vertical plane
Lasing (1)
with terahertz FEL (exists)

Figure 4.9 The Novosibirsk Recuperator. The beam energy is (40) 20 MeV
with 1.5 nC pulses at (90) 22.5 MHz repetition rate. It produces 400 W at 60 µm.
(Numbers in parentheses are under construction.) (Courtesy V. Vinokurov)
High-voltage
Electron gun power supply
Injector 2nd Recirculation
arc
1/4 Cryomodule IR Light to
experimental labs
Output
coupler mirrors
THz suppression UV Light to
chicane
Superconducting RF THz Light IR Wiggler experimental lab 4
IR optical cavity
linac cryomodules
to lab 3A
High
Optical chicane reflector
mirrors
UV optical cavity
Recirculation UV Wiggler
beam dump
Rotator (blue magnets)

1st Recirculation arc
Figure 4.10 The Jefferson Lab IR/UV Upgrade FEL. The beam energy is 150 MeV
with 135 pC pulses provided at up to 75 MHz, light output is 20/120/1 µJ/pulse in
the UV/IR/THz bands at 250 nm, 1–14 microns, and 0.1–5 THz.