Abstract
A 30 MeV RF electron linac based neutron source will be set up by APPD, BARC at IGCAR, Kalpakkam. This facility will include neutron activation of sodium by photo neutrons for FBR shielding studies and Neutron Time of Flight (n-TOF) facility for various research applications. In n-TOF facility, 10 ns, 10 A electron beam having 40% energy spread (18–30 MeV) will be generated by S-band linac. A compression magnet will compress 10 ns, 10 A electron pulse to 1 ns, 100 A. It will be a 360̂, 5-sector, zero gradient magnet having rectangular yoke of dimensions 3.2 m × 2.7 m × 0.4 m and weight ∼ 24 Ton. The pulse compression ratio of 10:1 will be achieved at a magnetic field of 0.1 T. A scale down model of the magnet is designed, fabricated and tested. This magnet produces 0.1 T field at 4200 A-turns. It can compress the 6 MeV electron pulse with 3:1 ratio. The present paper describes the compression magnet design, simulation results, fabrication details and the experimental results.
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