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Title: The Prototype Fundamental Power Coupler For The Spallation Neutron Source Superconducting Cavities: Design And Initial Test Results

Abstract

Each of the 805 MHz superconducting cavities of the Spallation Neutron Source (SNS) is powered via a coaxial Fundamental Power Coupler (FPC) with a 50 Omega impedance and a warm planar alumina window. The design is derived from the experience of other laboratories; in particular, a number of details are based on the coupler developed for the KEK B-Factory superconducting cavities. However, other design features have been modified to account for the fact that the SNS FPC will transfer a considerably lower average power than the KEK-B coupler. Four prototypes have been manufactured so far, and preliminary tests performed on two of them at Los Alamos National Laboratory (LANL). During these tests, peak powers of over 500 kW were transferred through the couplers in the test stand designed and built for this purpose. This paper gives details of the coupler design and of the results obtained from the RF tests on the test stand during the last few months. A more comprehensive set of tests is planned for the near future.

Authors:
; ; ; ; ; ; ; ; ; ;  [1];  [2]; ;  [3]
  1. (TJNAF)
  2. (Spallation Neutron Source)
  3. (LANL)
Publication Date:
Research Org.:
Thomas Jefferson National Accelerator Facility, Newport News, VA (US); Oak Ridge National Lab., TN (US); Los Alamos National Lab., NM (US)
Sponsoring Org.:
USDOE Office of Energy Research (ER) (US)
OSTI Identifier:
786469
Report Number(s):
JLAB-ACT-01-16; DOE/ER/40150-1906
TRN: US0108902
DOE Contract Number:  
AC05-00OR22725
Resource Type:
Conference
Resource Relation:
Conference: 2001 SRF Workshop, Tsukuba (JP), 09/06/2001--09/11/2001; Other Information: PBD: 1 Sep 2001
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; SUPERCONDUCTING CAVITY RESONATORS; DESIGN; NEUTRON SOURCES; PEAK LOAD; SPALLATION; PERFORMANCE; POWER SUPPLIES

Citation Formats

K. M. Wilson, I. E. Campisi, E. F. Daly, G. K. Davis, M. Drury, J. E. Henry, P. Kneisel, G. Myneni, T. Powers, W. J. Schneider, M. Stirbet, Y. Kang, K. Cummings, and T. Hardek. The Prototype Fundamental Power Coupler For The Spallation Neutron Source Superconducting Cavities: Design And Initial Test Results. United States: N. p., 2001. Web.
K. M. Wilson, I. E. Campisi, E. F. Daly, G. K. Davis, M. Drury, J. E. Henry, P. Kneisel, G. Myneni, T. Powers, W. J. Schneider, M. Stirbet, Y. Kang, K. Cummings, & T. Hardek. The Prototype Fundamental Power Coupler For The Spallation Neutron Source Superconducting Cavities: Design And Initial Test Results. United States.
K. M. Wilson, I. E. Campisi, E. F. Daly, G. K. Davis, M. Drury, J. E. Henry, P. Kneisel, G. Myneni, T. Powers, W. J. Schneider, M. Stirbet, Y. Kang, K. Cummings, and T. Hardek. Sat . "The Prototype Fundamental Power Coupler For The Spallation Neutron Source Superconducting Cavities: Design And Initial Test Results". United States. https://www.osti.gov/servlets/purl/786469.
@article{osti_786469,
title = {The Prototype Fundamental Power Coupler For The Spallation Neutron Source Superconducting Cavities: Design And Initial Test Results},
author = {K. M. Wilson and I. E. Campisi and E. F. Daly and G. K. Davis and M. Drury and J. E. Henry and P. Kneisel and G. Myneni and T. Powers and W. J. Schneider and M. Stirbet and Y. Kang and K. Cummings and T. Hardek},
abstractNote = {Each of the 805 MHz superconducting cavities of the Spallation Neutron Source (SNS) is powered via a coaxial Fundamental Power Coupler (FPC) with a 50 Omega impedance and a warm planar alumina window. The design is derived from the experience of other laboratories; in particular, a number of details are based on the coupler developed for the KEK B-Factory superconducting cavities. However, other design features have been modified to account for the fact that the SNS FPC will transfer a considerably lower average power than the KEK-B coupler. Four prototypes have been manufactured so far, and preliminary tests performed on two of them at Los Alamos National Laboratory (LANL). During these tests, peak powers of over 500 kW were transferred through the couplers in the test stand designed and built for this purpose. This paper gives details of the coupler design and of the results obtained from the RF tests on the test stand during the last few months. A more comprehensive set of tests is planned for the near future.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2001},
month = {9}
}

Conference:
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