TY - CPAPER AU - Gudkov, B.A. AU - Bae, S. AU - Jang, K.H. AU - Jeong, Y.U. AU - Kim, H.W. AU - Lee, K. AU - Miginsky, S.V. AU - Mun, J. AU - Park, S. H. AU - Shim, G.I. AU - Vinokurov, N. TI - Stabilization of Magnetron Frequency for a Microtron-Driven FEL J2 - Proc. of FEL2015 AB - Under KAERI WCI program we develop a compact pulsed microtron-driven FEL. Electron bunches trains are accelerated in the microtron and transported by the beamline to the undulator. The RF cavity in the microtron is fed by a magnetron. Any accelerator driver for a FEL should provide an electron beam having very stable parameters such as electron energy, current, and especially the bunch repetition rate in a train. All mentioned parameters depend on magnetron current. It means that special attention should be paid for the shape of the current pulse, supplied to the magnetron from the modulator. We developed the modulator project with a computer control that will provide an arbitrary shape of the magnetron current. A simplified prototype was fabricated and tested. The methods of controlling of the pulse shape are considered. Simulation and experimental results are presented. PB - JACoW CY - Geneva, Switzerland SP - 107 EP - 109 KW - controls KW - FEL KW - cavity KW - microtron KW - electron DA - 2015/12 PY - 2015 SN - 978-3-95450-134-2 DO - 10.18429/JACoW-FEL2015-MOP038 UR - http://accelconf.web.cern.ch/AccelConf/FEL2015/papers/mop038.pdf ER -