This paper presents the Multiphysics Analysis of a High-Power Microwave Window for Ka-Band Klystron providing 16MW peak power. After optimization electromagnetic performances, we analyze effect RF heating and stress pressure on window. We also multipactor effect, that is common cause window failure. Using such approach, it possible to realize virtual prototype capable represent in complete way ...

Design and experimental results are presented from two high power microwave generation experiments utilizing a high repetition rate induction linac generated electron beam. A relativistic klystron has generated more than 100 MW microwave pulses in X-band for 50 ns without pulse shortening or breakdown. Design studies for the first cyclotron autoresonance maser (CARM) amplifier using an inductio...

We discuss the stability of the drive beam in a relativistic klystron two-beam accelerator (RK-TBA). Simulations are presented for the main extraction section of an RKTBA. Longitudinal and transverse equilibria are discussed. Beamline parameters are chosen which correspond to the RTA experiment.

We demonstrate the generation of widely tunable two-color x-ray free-electron laser (FEL) pulses at SwissFEL. In a split-undulator configuration, each color is produced in different undulator section, and chicane between two sections allows for variable time separation up to 500 fs. show an unprecedented photon energy ratio colors about three (350 915 eV), with individual pulse having peak powe...

A single overmoded sized window is being considered for use on the SLAC 75 MW X-Band Klystron. The 65 mm diameter window operates in the circular TE01 mode in the reduced field, traveling wave configuration. Double step transitions were designed using MLEGO modematching program to suppress conversion to TE02. This compact design has a maximum peak rf electric field of 3.4 MV/meter at 75 MW. Des...

A prototype rf power source based on the Relativistic Klystron Two-Beam Accelerator (RK-TBA) concept is being constructed at the Lawrence Berkeley National Laboratory to study physics, engineering, and costing issues. The prototype, called the RTA, is described and compared to a full scale design appropriate for driving the Next Linear Collider (NLC). Specific details of the induction core test...