IPAC'24 - 15th International Particle Accelerator Conference

Study and simulation of cryogenic photonic-band-gap disk-loaded structure

SUPG008

19 May 2024, 14:00

4h

Bluegrass (MCC Exhibit Hall A)

Student Poster Presentation MC7.T13 Cryogenics Student Poster Session

Speaker

Dinghui Su (Shanghai Institute of Applied Physics)

Description

In order to enhance the accelerating gradient of accelerators, cryogenic accelerating structures have been investigated. Based on material characteristics and technical conditions, a fundamental design has been accomplished. Photonic band-gap (PBG) structures employ a lattice of rods to impede the propagation of RF field through the lattice at specific frequencies while effectively damping higher order modes. The design of the single-cell PBG structure has been refined by altering the shape of the rods surrounding the defect region in order to miti-gate peak surface magnetic field within the structure. The combination of PBG cells and a bi-periodic accelerating structure has resulted in the design of a novel structure. This innovative configuration possesses the advantageous characteristics of a bi-periodic structure while incorporating the additional functionality of a PBG structure to effectively damping higher order modes.

Funding Agency

Work supported by the Alliance of International Science Organizations (ANSO-CR-KP-2020-16) and the National Natural Science Foundation of China (No. 12175292).