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TY - CONF AU - Bowring, D.L. AU - Biedron, S. AU - Chase, B.E. AU - Czajkowski, J. AU - Edelen, A.L. AU - Edelen, J.P. AU - Milton, S.V. AU - Nicklaus, D.J. AU - Steimel, J. AU - Zuchnik, T.J. ED - Petit-Jean-Genaz, Christine ED - Kim, Dong Eon ED - Kim, Kyung Sook ED - Ko, In Soo ED - Schaa, Volker RW TI - Resonant Control for Fermilab's PXIE RFQ J2 - Proc. of IPAC2016, Busan, Korea, May 8-13, 2016 C1 - Busan, Korea T2 - International Particle Accelerator Conference T3 - 7 LA - english AB - The RFQ for Fermilab's PXIE test program is designed to accelerate a < 10 mA H⁻ CW beam to 2.1 MeV. The RFQ has a four-vane design, with four modules brazed together for a total of 4.45 m in length. The RF power required is < 130 kW at 162.5 MHz. A 3 kHz limit on the maximum allowable frequency error is imposed by the RF amplifiers. This frequency constraint must be managed entirely through differential cooling of the RFQ's vanes and outer body and associated material expansion. Simulations indicate that the body and vane coolant temperature should be controlled to within 0.1 degrees C. We present the design of the cooling network and the resonant control algorithm for this structure, as well as results from initial operation. PB - JACoW CP - Geneva, Switzerland SP - 447 EP - 450 KW - rfq KW - controls KW - operation KW - resonance KW - cavity DA - 2016/06 PY - 2016 SN - 978-3-95450-147-2 DO - 10.18429/JACoW-IPAC2016-MOPMW026 UR - http://jacow.org/ipac2016/papers/mopmw026.pdf ER -