Author/Authors :
Oda، نويسنده , , Fumihiko and Yokoyama، نويسنده , , Minoru and Nakayama، نويسنده , , Akihiro and Koike، نويسنده , , Hidehito and Tanabe، نويسنده , , Eiji، نويسنده ,
Abstract :
Kawasaki Heavy Industries Ltd. (KHI) has developed the compact IR FEL device, which adopts a combination of a newly designed RF gun with a thermionic cathode and an α-magnet as an injector. The accelerating mode of the S-band RF gun is a π/2 standing wave mode. The coupling cell is located on the beam axis, the so-called on-axis coupled structure (OCS). The cavity shape was designed by using electromagnetic field analytical codes. The OCS RF gun was manufactured and the electromagnetic properties were measured. The results show good agreement with the simulations.