4. Magnets developed for Infra-Red Free Electron Laser (IRFEL):

A set of beam transfer line magnets (dipole, quadrupole, solenoids & combined function steering magnets) have been designed and developed for 15 to 35 MeV Infra-Red Free Electron Laser (IR-FEL) project at RRCAT. The details of these magnets are given below:

Parameters of beam transfer line magnets for IRFEL, RRCAT.

Parameter	Dipole magnets	Quadrupole magnets	Water cooled solenoids
Pole gap/Aperture	42 mm	Dia.: 60 mm	Dia.: 278 mm
Peak field/Gradient	0.23 T	2.5 T/m	B.L: 71.18 G-cm
Bending angle	22.5o	--	--
Magnetic length	198 mm	204 mm	--
Quantity	3 Nos.	12 Nos.	20 Nos.

Fig. 68: Dipole magnets on measurement bench.


Fig. 69: Measured integrated field uniformity in dipole magnet.


Fig. 70: Quadrupole magnets for IRFEL.


Fig. 71: Measured higher order harmonics in quadrupole magnet.


Fig. 72: Water cooled solenoids for IRFEL.


Fig. 73: Solenoids on measurement bench.


Fig. 74: Installed dipole and quadrupole magnets in IRFEL beam transfer line.


Fig. 75: Installed water cooled solenoids in IRFEL Injector Linac.