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Title: Instrumentation for localized superconducting cavity diagnostics

Abstract

Superconducting accelerator cavities are now routinely operated at levels approaching the theoretical limit of niobium. To achieve these operating levels more information than is available from the RF excitation signal is required to characterize and determine fixes for the sources of performance limitations. This information is obtained using diagnostic techniques which complement the analysis of the RF signal. In this paper we describe the operation and select results from three of these diagnostic techniques: the use of large scale thermometer arrays, second sound wave defect location and high precision cavity imaging with the Kyoto camera.

Authors:
 [1];  [2];  [3]
  1. Argonne National Lab. (ANL), Argonne, IL (United States). Physics Division
  2. Cornell Lab. for Accelerator-Based Sciences and Education, Ithaca, NY (United States)
  3. Kyoto Univ. (Japan)
Publication Date:
Research Org.:
Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Nuclear Physics (NP) (SC-26)
OSTI Identifier:
1339547
DOE Contract Number:  
AC02-06CH11357
Resource Type:
Journal Article
Resource Relation:
Journal Name: Superconductor Science and Technology; Journal Volume: 30; Journal Issue: 3
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; accelerator instrumentation; radio-frequency devices; superconducting cavities

Citation Formats

Conway, Z. A., Ge, M., and Iwashita, Y. Instrumentation for localized superconducting cavity diagnostics. United States: N. p., 2017. Web. doi:10.1088/1361-6668/30/3/034002.
Conway, Z. A., Ge, M., & Iwashita, Y. Instrumentation for localized superconducting cavity diagnostics. United States. doi:10.1088/1361-6668/30/3/034002.
Conway, Z. A., Ge, M., and Iwashita, Y. Thu . "Instrumentation for localized superconducting cavity diagnostics". United States. doi:10.1088/1361-6668/30/3/034002.
@article{osti_1339547,
title = {Instrumentation for localized superconducting cavity diagnostics},
author = {Conway, Z. A. and Ge, M. and Iwashita, Y.},
abstractNote = {Superconducting accelerator cavities are now routinely operated at levels approaching the theoretical limit of niobium. To achieve these operating levels more information than is available from the RF excitation signal is required to characterize and determine fixes for the sources of performance limitations. This information is obtained using diagnostic techniques which complement the analysis of the RF signal. In this paper we describe the operation and select results from three of these diagnostic techniques: the use of large scale thermometer arrays, second sound wave defect location and high precision cavity imaging with the Kyoto camera.},
doi = {10.1088/1361-6668/30/3/034002},
journal = {Superconductor Science and Technology},
number = 3,
volume = 30,
place = {United States},
year = {Thu Jan 12 00:00:00 EST 2017},
month = {Thu Jan 12 00:00:00 EST 2017}
}