Computer simulation of ion orbits in the Argonne superconducting heavy-ion linac (test version) [report]

M. Peshkin
1979 unpublished
The bunch profile is computed in one space dimension, as a function of the available parameters. Transverse motion is neglected. 1.1 I. SUMMARY This report presents a quick-and-dirty treatment of the orbits of heavy ions in the Argonne superconducting heavy-ion linac. My purpose was, with minimal effort, to provide a computer simulation of the linac. The operator should be able to calculate the effects of varying the controls (field amplituu~~:; and phases) upon the profile o£ a bunch of ions
more » ... £ a bunch of ions emerging from the linac; and he should be able to do that quickly and cheaply. * BOX4 by loading the Speakeasy linkules which it most needs .) Input information An entering bunch of ions is thought of as consisting of a reference particle and a number (perhaps 100) of profile particles that somehow represent the edge of the bunch in the energy-phase plane. The reference particle is characterized by its energy EIN and the phase of the resonator THETAREF, relative to the phase which would produce maximum acceleration for fixed values of all other variables. The phase convention is defined more precisely by Eqs. (3.1) and (3.6). To use the Simulator it is sufficient to know that, within the range of the tables, positive THETAREF is the bunching region and * In a test run off prime time,Da single execution of BOX4 cost 17c with nothing loaded, 12¢ with only GRAPHZ and INTERPLAG loaded, and 10¢ with all the listed linkules loaded.
doi:10.2172/6386733 fatcat:tqg7gedcarf4ndo75cfk7ibjey