Random-regular accelerating structures

In this work we present results of investigation of the characteristics of inhomogeneous sections on the base of a disk-loaded waveguide with different laws of hole radius variation. We have shown that in the case when coupling of cavity fields is small there is a traveling wave in a waveguide even for the non-smooth laws of hole radius variation. But the traveling wave regime exists only at a certain frequency (operating frequency). Unlike the homogeneous accelerating structures, where reflections can arise only from the couplers, in the case of inhomogeneous structures there is no a pure traveling wave regime inside the waveguide at the frequencies different from the operating one. We investigate the RF-properties of different accelerating structures with random distribution of the hole sizes.