11-15 September 2023
Budker INP
Asia/Novosibirsk timezone

Quality factor characterization of superconductive low-beta 325 MHz half-wave resonators at low microwave field amplitudes

14 Sep 2023, 17:00
20m
Conference Hall (Budker INP)

Conference Hall

Budker INP

Lavrentiev av. 11, Novosibirsk 630090 Russia
Oral Superconducting technologies Superconductivity in accelerators

Speaker

Dzmitry Bychanok (INP BSU)

Description

A niobium prototype of 325 MHz coaxial half-wave resonator with β=0.21 has been designed, produced and tested at low microwave field amplitudes. The electromagnetic properties were investigated via different measurement techniques: in frequency-domain using vector network analyzer and in continuous wave regime using RF-generator and power detectors. The features of the cavity response in normal and superconducting states are compared and analyzed. The experimentally measured quality factor of studied cavity is $Q_0=(3.5 ±0.1)·10^8$ at microwave power values up to 20 dBm.

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