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Title: Clamshell microwave cavities having a superconductive coating

Abstract

A microwave cavity including a pair of opposing clamshell halves, such halves comprised of a metal selected from the group consisting of silver, copper, or a silver-based alloy, wherein the cavity is further characterized as exhibiting a dominant TE.sub.011 mode is provided together with an embodiment wherein the interior concave surfaces of the clamshell halves are coated with a superconductive material. In the case of copper clamshell halves, the microwave cavity has a Q-value of about 1.2.times.10.sup.5 as measured at a temperature of 10K and a frequency of 10 GHz.

Inventors:
 [1];  [1];  [2]
  1. Los Alamos, NM
  2. Wuppertal, DE
Issue Date:
Research Org.:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
OSTI Identifier:
869202
Patent Number(s):
5296457
Assignee:
Regents of University of California (Oakland, CA)
Patent Classifications (CPCs):
H - ELECTRICITY H01 - BASIC ELECTRIC ELEMENTS H01P - WAVEGUIDES
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC Y10S - TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
DOE Contract Number:  
W-7405-ENG-36
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
clamshell; microwave; cavities; superconductive; coating; cavity; including; pair; opposing; halves; comprised; metal; selected; consisting; silver; copper; silver-based; alloy; characterized; exhibiting; dominant; 011; mode; provided; embodiment; interior; concave; surfaces; coated; material; q-value; times; 10; measured; temperature; 10k; frequency; ghz; conductive material; microwave cavity; metal selected; superconductive material; concave surface; based alloy; shell halves; cavity including; microwave cavities; superconductive coating; wave cavity; conductive coating; /505/333/

Citation Formats

Cooke, D Wayne, Arendt, Paul N, and Piel, Helmut. Clamshell microwave cavities having a superconductive coating. United States: N. p., 1994. Web.
Cooke, D Wayne, Arendt, Paul N, & Piel, Helmut. Clamshell microwave cavities having a superconductive coating. United States.
Cooke, D Wayne, Arendt, Paul N, and Piel, Helmut. Sat . "Clamshell microwave cavities having a superconductive coating". United States. https://www.osti.gov/servlets/purl/869202.
@article{osti_869202,
title = {Clamshell microwave cavities having a superconductive coating},
author = {Cooke, D Wayne and Arendt, Paul N and Piel, Helmut},
abstractNote = {A microwave cavity including a pair of opposing clamshell halves, such halves comprised of a metal selected from the group consisting of silver, copper, or a silver-based alloy, wherein the cavity is further characterized as exhibiting a dominant TE.sub.011 mode is provided together with an embodiment wherein the interior concave surfaces of the clamshell halves are coated with a superconductive material. In the case of copper clamshell halves, the microwave cavity has a Q-value of about 1.2.times.10.sup.5 as measured at a temperature of 10K and a frequency of 10 GHz.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Sat Jan 01 00:00:00 EST 1994},
month = {Sat Jan 01 00:00:00 EST 1994}
}

Works referenced in this record:

Fabrication and rf surface resistance of superconducting lead cavity by a press forming technique
journal, April 1980


SUPERCONDUCTING Nb TM 010 MODE ELECTRON‐BEAM WELDED CAVITIES
journal, May 1970


First Results on a 500 MHz Superconducting Test Cavity for TRISTAN
journal, February 1981