Manufacturing method of radio frequency superconducting cavity with thin-wall structure

• Main Authors: ZHANG SHENGXUE, LIU TONG, HUANG YULU, LIU LUBEI, WANG RUOXU, MENG XIN, LI CHUNLONG, HE YUAN, JIANG TIANCAI
• Format: Patent
• Language: Chinese; English
• Published: 31.03.2023
• Subjects: COMBINED OPERATIONS; ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR; OTHER WORKING OF METAL; PERFORMING OPERATIONS; PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OFNEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMICBEAMS; TRANSPORTING; UNIVERSAL MACHINE TOOLS

The invention discloses a manufacturing method of a radio frequency superconducting cavity with a thin-wall structure. The manufacturing method sequentially comprises the following steps of thin-wall cavity structure forming, machining, surface treatment, frequency control, welding and weld joint polishing. The radio frequency superconducting cavity is made of a niobium plate with the thickness of 0.5-2 mm and the RRR value of 40-350; the radio frequency superconducting cavity comprises a deflection cavity and an acceleration cavity; the working frequency of the radio frequency superconducting cavity is 70 to 3900 MHz; and before the thin-wall cavity structure is formed, the niobium plate is subjected to heat treatment. According to the manufacturing method of the radio-frequency superconducting cavity with the thin-wall structure, the manufacturing cost of the superconducting cavity can be remarkably reduced, the heat transfer capability of the radio-frequency superconducting cavity is improved, and the ther