Toutatis, the Cea-Saclay RFQ code

Details Toutatis, the Cea-Saclay RFQ code Toutatis, the Cea-Saclay RFQ code

2000-08-17

arxiv.org/abs/physics/0008121v1

eConf C000821 (2000) THB19

Physics

Accelerator Physics

3 pages, 6 figures, LINAC 2000

Scientific paper

A CW high power linear accelerator can only work with very low particles losses and structure activation. At low energy, the RFQ is a very sensitive element to losses. To design the RFQ, a good understanding of the beam dynamics is requested. Generally, the reference code PARMTEQM is enough to design the accelerator. TOUTATIS has been written with goals of cross-checking results and obtaining a more reliable dynamics. This paper relates the different numerical methods used in the code. It is time-based, using multigrids methods and adaptive mesh for a fine description of the forces without being time consuming. The field is accurately calculated through a Poisson solver and the vanes are fully described, allowing to properly simulate the coupling gaps and RFQs extremities. Differences with PARMTEQM and LIDOS.RFQ are shown.

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