New design and preliminary tests of a novel matching section for dielectric-loaded accelerating structures

Abstract

In our previous studies on the development of a new type of matching section for dielectric-loaded accelerating (DLA) structures, a significant discrepancy was found between measurements and simulations [Y. Wei, et al., Phys. Rev. Accel. Beams 25, 041301, 2022]. This discrepancy was caused by the fabrication errors on the dielectric dimensions. Through introducing the measurement techniques during the fabrication processing on the dielectric tube, we show that this discrepancy can be improved. A new prototype of X-band dielectric tube was then fabricated. The preliminary cold-tests are performed for this dielectric tube without coating.