INDUCTION SYSTEM FOR A PROTON BUNCH ACCELERATION IN SYNCHROTRON *

Recently the first induction acceleration of a single proton bunch of 2.3E10ppp was demonstrated [1], where it was accelerated from 500MeV to 8GeV in 1.9sec in KEK-PS. This paper describes the induction system for a synchrotron and a beam confinement experiment as a second step of the proof-of principle (PoP) experiments of a “induction synchrotron ” [2], where a proton beam with a bunch length of 500ns was longitudinally confined by the induction barriers for 500msec, is introduced.. INDUCTION SYSTEM FOR SYNCHROTRON The induction system required for the proton bunch acceleration was integrated in September 2004. The installed components are: 1) the switching power supplies [3], 2) the induction cells [4], 3) the trigger system, and 4) the interlock system. The entire system is described in an equivalent circuit, shown Figure 1