Compact beam transport system for a 6 MeV electron beam to a race-track-microtron accelerator


Verschuur, J.W.J. and Analbers, R. and Slot, P.J.M. van der and Ernst, G.J. and Witteman, W.J. (1999) Compact beam transport system for a 6 MeV electron beam to a race-track-microtron accelerator. Nuclear Instruments and Methods in Physics Research. Section B: Beam interactions with materials and atoms, 427 (1-2). pp. 68-73. ISSN 0168-583X

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Abstract:The design of a compact system for the transport of a 6 MeV electron beam from a photo-cathode linac to a race-track-microtron is described. The high quality of the electron beam has to be maintained during transport. The geometrical limitations make the system necessarily a compact one. The parameters found by the application of rules for double achromaticity and a one-to-one imaging of the system are used as starting values for simulations with the code TRACE-3D. The slightly adjusted parameters are checked by calculations with the particle tracking code PARMELA. Although a slight degradation of the beam shows up, the system with four dipoles and a quadrupole have enough flexibility to transport the beam under various conditions. Special care is taken with the design of the dipoles. The finite element program ANSYS is used for a detailed calculation of the field including the trajectories of the electrons. Results of the calculations lead to a slight adjustment of the dipole design.
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Copyright:© 1999 Elsevier
Science and Technology (TNW)
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