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

Autor: Jeroen W.J. Verschuur, W.J. Witteman, P.J.M. van der Slot, G.J. Ernst, R. Analbers
Přispěvatelé: Laser Physics & Nonlinear Optics, Faculty of Science and Technology
Rok vydání: 1999
Předmět:
Zdroj: Nuclear instruments and methods in physics research. Section B : Beam interactions with materials and atoms, 1999(A 427), 68-73. Elsevier
ISSN: 0168-9002
0168-583X
DOI: 10.1016/s0168-9002(98)01520-4
Popis: 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.
Databáze: OpenAIRE