NDLI: Shipping and alignment for the SNS cryomodule

Content Provider	IEEE Xplore Digital Library
Author	Whitlatch, T. Curtis, C. Daly, E.F. Graves, C. Henry, J. Matsumoto, K. Mutton, P. Pitts, J. Preble, J. Sachleben, W. Schneider, W. Slachtouski, S. Wiseman, M.
Copyright Year	2001
Description	Author affiliation: Jefferson Lab., Newport News, VA, USA (Whitlatch, T.)
Abstract	The Spallation Neutron Source (SNS) requires 32 superconducting cryomodules to raise the beam energy of the accelerator to 1.3 GeV. Thomas Jefferson National Accelerator Facility (Jefferson Lab) has been contracted to build and deliver these cryomodules. The SNS cryomodules are being assembled and tested at Jefferson Lab in Newport News, Virginia, and installed at the SNS facility in Oak Ridge, Tennessee. The cryomodules will be transported via a flatbed air ride trailer over the approximate 500-mile distance. This paper describes the alignment of the cavities and how it is preserved during the shipping and operation of the cryomodule. It includes a description of the support scheme developed to preserve the alignment during shipping and operation, and how the support scheme forms a very rigid structure with natural frequencies well above the expected 10 Hz driving frequencies during transportation. The entire cryomodule is supported by a dampened cradle, which is mounted directly onto the bed of the trailer. The transportation environment was evaluated by instrumenting a similar (CEBAF 1/4) cryomodule with accelerometers during a road test of approximately 300 miles. A modal analysis of the whole system is in progress. Steps taken to minimize any transport-induced loading/deflections are discussed.
Sponsorship	U.S. Dept. Energy
Starting Page	1488
Ending Page	1490
File Size	422325
Page Count	3
File Format	PDF
ISBN	0780371917
DOI	10.1109/PAC.2001.986723
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2001-06-18
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Testing Frequency Neutrons Superconducting devices Particle beams Assembly Road transportation Instruments Accelerometers Modal analysis
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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SNS cryomodule performance

Design of the SNS cryomodule

Overview of SNS Cryomodule Performance

Status of the SNS cryomodule test

Testing of the SNS Superconducting Cavities and Cryomodules

Installation and Testing for Commissioning of Normal Conducting RF Linac Segment in the SNS

Installation of the Spallation Neutron Source (SNS) Superconducting Linac

RF Conditioning and Testing of Fundamental Power Couplers for SNS Superconducting Cavity Production

Design of the SNS cavity support structure

Shipping and alignment for the SNS cryomodule

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