Electrode and insulator stack assembly

Claim 1

A PARTICLE ACCELERATOR COMPRISING A STACK OF ANNULAR ELECTRODES, MEANS FOR APPLYING GRADUATED ACCELERATING POTENTIALS TO SAID ELECTRODES, ANNULAR SOLID INSULATORS INTERPOSED BETWEEN SAID ELECTRODES IN ABUTTING RELATIONSHIP, THE OUTSIDE DIAMETER OF EACH ELECTRODE BEING GREATER THAN THE OUTSIDE DIAMETER OF EACH INSULATOR AND THE INSIDE DIAMETER OF EACH ELECTRODE BEING SMALLER THAN THE INSIDE DIAMETER OF EACH INSULATOR, SO THAT SAID ELECTRODES PROTRUDE INWARDLY AND OUTWARDLY OF SAID INSULATORS RESPECTIVELY, SAID ELECTRODES AND SAID INSULATORS HAVING SURFACES ADHESIVELY BONDED TOGETHER, THE SURFACES OF SAID ELECTRODES HAVING AT LEAST ONE RAISED PORTION THEREON ENGAGING THE SURFACE OF THE ADJACENT INSULATOR TO MAINTAIN SAID ADJACENT SURFACES IN PREDETERMINED SPACED RELATION, ADHESIVE FILLING THE SPACE BETWEEN SAID ADJACENT SURFACE, AND A GROOVE IN EACH ELECTRODE SURFACE ADJACENT SAID RAISED PORTION TO FORM A RESERVOIR FOR EXCESSIVE ADHESIVE.