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TY - CONF AU - Kurennoy, S.S. AU - Batygin, Y.K. ED - Henderson, Stuart ED - Akers, Evelyn ED - Satogata, Todd ED - Schaa, Volker R.W. TI - 3D Electromagnetic and Beam Dynamics Modeling of the LANSCE Drift-Tube Linac J2 - Proc. of IPAC2015, Richmond, VA, USA, May 3-8, 2015 C1 - Richmond, VA, USA T2 - International Particle Accelerator Conference T3 - 6 LA - english AB - The LANSCE drift-tube linac (DTL) accelerates the proton or H⁻ beam to 100 MeV. It consists of four tanks containing tens of drift tubes and post-couplers; for example, tank 2 is almost 20 m long and has 66 cells. We have developed 3D models of full tanks [1] in the DTL with CST Studio to accurately calculate the tank modes, their sensitivity to post-coupler positions and tilts, tuner effects, and RF-coupler influence. Electromagnetic analysis of the DTL tank models is performed using MicroWave Studio (MWS). The full-tank analysis allows tuning the field profile of the operating mode and adjusting the frequencies of the neighboring modes within a realistic CST model. Beam dynamics is modeled with Particle Studio for bunch trains with realistic initial beam distributions using the MWS-calculated and tuned RF fields and quadrupole magnetic fields to determine the output beam parameters and locations of particle losses. PB - JACoW CP - Geneva, Switzerland SP - 4079 EP - 4081 KW - DTL KW - simulation KW - beam-losses KW - linac KW - rfq DA - 2015/06 PY - 2015 SN - 978-3-95450-168-7 DO - 10.18429/JACoW-IPAC2015-THPF150 UR - http://jacow.org/ipac2015/papers/thpf150.pdf ER -