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TY - CONF AU - Vnuchenko, A. AU - Benedetti, S. AU - Blanch Gutiérrez, C. AU - Catalán Lasheras, N. AU - Esperante Pereira, D. AU - Faus-Golfe, A. AU - Grudiev, A. AU - Koubek, B. AU - Lucas, T.G. AU - McMonagle, G. AU - Pitman, S. AU - Syratchev, I. AU - Volpi, M. AU - Woolley, B.J. AU - Wuensch, W. ED - Koscielniak, Shane ED - Satogata, Todd ED - Schaa, Volker RW ED - Thomson, Jana TI - High Gradient Performance of an S-Band Backward Traveling Wave Accelerating Structure for Medical Hadron Therapy Accelerators J2 - Proc. of IPAC2018, Vancouver, BC, Canada, April 29-May 4, 2018 C1 - Vancouver, BC, Canada T2 - International Particle Accelerator Conference T3 - 9 LA - english AB - The high-gradient performance of an accelerating structure prototype for a medical proton linac is presented. The structure was designed and built using technology developed by the CLIC collaboration and the target application is the TULIP (Turning Linac for Proton therapy) proposal developed by the TERA foundation. The special feature of this design is to produce gradient of more than 50 MV /m in low-β accelerating structures (v/c=0.38). The structure was tested in an S-band test stand at CERN. During the tests, the structure reached over above 60 MV/m at 1.2 μs pulse length and breakdown rate of about 5x10⁻⁶ bpp. The results presented include ultimate performance, long term behaviour and measurements that can guide future optimization. PB - JACoW Publishing CP - Geneva, Switzerland SP - 491 EP - 494 KW - linac KW - proton KW - cavity KW - radiation KW - accelerating-gradient DA - 2018/06 PY - 2018 SN - 978-3-95450-184-7 DO - 10.18429/JACoW-IPAC2018-MOPML043 UR - http://jacow.org/ipac2018/papers/mopml043.pdf ER -