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TY - CONF AU - Toufexis, F. AU - Dolgashev, V.A. AU - Limborg-Deprey, C. AU - Tantawi, S.G. ED - Schaa, Volker RW ED - Arduini, Gianluigi ED - Pranke, Juliana ED - Seidel, Mike ED - Lindroos, Mats TI - A Compact Thermionic RF Injector with RF Bunch Compression fed by a Quadrupole-Free Mode Launcher J2 - Proc. of IPAC2017, Copenhagen, Denmark, 14â19 May, 2017 C1 - Copenhagen, Denmark T2 - International Particle Accelerator Conference T3 - 8 LA - english AB - We present a design for a compact X-Band RF thermionic injector consisting of two iris-loaded accelerator structures. Both structures are fed by a single quadrupole-free TM01 mode launcher. In the first structure the electron bunches are extracted from a thermionic cathode. The second structure creates an energy chirp in the bunch for its further ballistic compression. This injector can produce short electron bunches without the need for a magnetic bunch compressor. We are developing this injector as part of a linac-based 91.392 GHz RF power source, which further comprises a booster linac and a mm-wave decelerator structure that extracts 91.392 GHz RF power from the electron beam. This source will be used to power a short-period RF undulator with 1.75 mm period*. PB - JACoW CP - Geneva, Switzerland SP - 924 EP - 927 KW - gun KW - cathode KW - electron KW - undulator KW - linac DA - 2017/05 PY - 2017 SN - 978-3-95450-182-3 DO - 10.18429/JACoW-IPAC2017-MOPVA033 UR - http://jacow.org/ipac2017/papers/mopva033.pdf ER -