The design of klystrons is based on the intensive utilization of simulation codes, which can evaluate the complete beam-cavities interaction in the case of large signals. In the present work, we present the development of a 2-D steady state simulation code that can self- consistently evaluate the effects of the electromagnetic field on the particles and of the particles back on the field. The algorithm is based on the iterative solution of the power balance equation in the RF structures and it allows determining the amplitude and phase of the electromagnetic field starting from the cavity modes. Some applications of the code to a single cavity and a two cavity klystron are presented and compared with the results obtained from theory and from another code. Effects of space charge forces in the drift tubes are also evaluated. Copyright © 2011 by IPAC'11/EPS-AG.
Development of a steady state simulation code for klystron amplifiers / C., Marrelli; Migliorati, Mauro; Mostacci, Andrea; Palumbo, Luigi; B., Spataro; S., Tantawi. - (2011), pp. 2265-2267. (Intervento presentato al convegno 2nd International Particle Accelerator Conference, IPAC 2011 tenutosi a Kursaal, San Sebastian nel 4 September 2011 through 9 September 2011).
Development of a steady state simulation code for klystron amplifiers
MIGLIORATI, Mauro;MOSTACCI, Andrea;PALUMBO, Luigi;
2011
Abstract
The design of klystrons is based on the intensive utilization of simulation codes, which can evaluate the complete beam-cavities interaction in the case of large signals. In the present work, we present the development of a 2-D steady state simulation code that can self- consistently evaluate the effects of the electromagnetic field on the particles and of the particles back on the field. The algorithm is based on the iterative solution of the power balance equation in the RF structures and it allows determining the amplitude and phase of the electromagnetic field starting from the cavity modes. Some applications of the code to a single cavity and a two cavity klystron are presented and compared with the results obtained from theory and from another code. Effects of space charge forces in the drift tubes are also evaluated. Copyright © 2011 by IPAC'11/EPS-AG.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
