External Proton Beam Tune Calculations including Targets at Consecutive "Focii"

A beam transport program for the CDC-924A Zero Gradient Synchrotron (ZGS) control computer has been prepared which includes the change in phase space properties caused by multiple scattering in target material at the various consecutive experimental user stations ("focii"). The beam envelope, continuous across targets, can be displayed on an oscilloscope and the beam parameters can be adjusted to fit desired conditions. The phase space ellipse at any specified position in the beam can also be displayed. Average energy loss is included in the computations to update the beam momentum. Experimental tests will be made to determine the validity of the computations.