The First ASME Code Stamped Cryomodule at SNS

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The first spare cryomodule for the Spallation Neutron Source (SNS) has been designed, fabricated, and tested by SNS personnel. The approach to design for this cryomodule was to hold critical design features identical to the original design such as bayonet positions, coupler positions, cold mass assembly, and overall footprint. However, this is the first SNS cryomodule that meets the pressure requirements put forth in the 10 CFR 851: Worker Safety and Health Program. The most significant difference is that Section VIII of the ASME Boiler and Pressure Vessel Code was applied to the vacuum vessel of this cryomodule. Applying the ... continued below

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Howell, M. P.; Crofford, M. T.; Douglas, D. L.; Kim, S.-H.; Steward, S. T.; Strong, W. H. et al. July 1, 2012.

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Description

The first spare cryomodule for the Spallation Neutron Source (SNS) has been designed, fabricated, and tested by SNS personnel. The approach to design for this cryomodule was to hold critical design features identical to the original design such as bayonet positions, coupler positions, cold mass assembly, and overall footprint. However, this is the first SNS cryomodule that meets the pressure requirements put forth in the 10 CFR 851: Worker Safety and Health Program. The most significant difference is that Section VIII of the ASME Boiler and Pressure Vessel Code was applied to the vacuum vessel of this cryomodule. Applying the pressure code to the helium vessels within the cryomodule was considered. However, it was determined to be schedule prohibitive because it required a code case for materials that are not currently covered by the code. Good engineering practice was applied to the internal components to verify the quality and integrity of the entire cryomodule. The design of the cryomodule, fabrication effort, and cryogenic test results will be reported in this paper.

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  • IPAC 2012, 20-25 May 2012, New Orleans, Louisiana

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  • Report No.: JLAB-ACC-12-1523
  • Report No.: DOE/OR/23177-2275
  • Grant Number: AC05-06OR23177
  • Office of Scientific & Technical Information Report Number: 1048113
  • Archival Resource Key: ark:/67531/metadc842566

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Office of Scientific & Technical Information Technical Reports

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  • July 1, 2012

Added to The UNT Digital Library

  • May 19, 2016, 9:45 a.m.

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  • June 9, 2016, 9:07 p.m.

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Howell, M. P.; Crofford, M. T.; Douglas, D. L.; Kim, S.-H.; Steward, S. T.; Strong, W. H. et al. The First ASME Code Stamped Cryomodule at SNS, article, July 1, 2012; Oak Ridge, Tennessee. (digital.library.unt.edu/ark:/67531/metadc842566/: accessed October 23, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.