A NB TM010 MODE CAVITY WITH HIGH ELECTRIC FIELD AND Q0

被引：12

作者：

WEISSMAN, I

TURNEAURE, JP

机构：

[1] Varian Associates, Central Research Laboratories, Palo Alto

[2] High Energy Physics Laboratory, Stanford University, Stanford

来源：

APPLIED PHYSICS LETTERS | 1968年 / 13卷 / 11期

关键词：

D O I：

10.1063/1.1652484

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

A superconducting Nb TM010 mode cavity at 8.5 GHz machined from a single piece of reactor-grade electron-beam-melted Nb to avoid joints had an unloaded Q (Q0) of 2 × 1010. After some degradation in the Q0, which took place as the microwave fields were increased, a high Q0 of 1 × 109 was obtained at a peak electric field on the cavity surface of 27 MV/m. These results were obtained by using ultrahigh-vacuum firing and chemical polishing of the Nb cavity, and ultrahigh vacuum within the cavity during measurement. The high Q0 at high electric field demonstrates the usefulness of superconducting Nb cavities for devices such as linear particle accelerators and rf separators. © 1969 The American Institute of Physics.

引用

页码：390 / +

页数：1