ACCELERATING STRUCTURE FOR A LINEAR CHARGED PARTICLE ACCELERATOR

摘要

: An accelerating structure for a linear particle accelerator operating in the travelling wave mode or in the standing wave mode comprises at least one accelerating section and a complementary bunching or pre-accelerating section formed by a resonant cavity of the reentrant type magnetically coupled with the first cavity of the accelerating section by means of a coupling iris, the reentrant cavity having a length L = (2m + 1) .lambda.o/4 and the distance D separating the interaction spaces of the first cavity of the complementary section and the first cavity of the accelerating section being equal to D = (2k + ? +.alpha.) .pi..beta..lambda.o , with O?.alpha. ?, n and k being integers, .beta. being the reduced velocity v/c of the particles and .lambda.o being the operating wave length of the accelerator.