Admissible errors for parameters of a focusing channel of a linear induction accelerator with intense electron beam. 3. Estimation of tolerances on the example of the LIU-5/5000 accelerator

Estimation of tolerances for parameters of a focusing channel of the LIU-5/5000 induction linac is carried out. An intense beam with non-zero phase volume of transverse motion can have a stationary distribution function for particle density in the focusing channel with a longitudinal magnetic field only at the absence of a magnetic field on the cathode. The amplitude of dipole coherent oscillations essentially depends on initial displacement (due to non-axial beam transport of a section with a radial electric field in the accelerating gap of an electron gun) and initial beam angle (due to low frequency of dipole coherent oscillations). The slope of magnetic axes of focusing elements makes the largest contribution to the growth of an amplitude of coherent beam oscillations