Experimental heat leak measurements on the APT 210 KW CW RF power coupler

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A cryogenic test rig was designed and fabricated to measure the heat leak from room temperature to 2 K from the Accelerator Production of Tritium (APT) 700 MHz, 210 kW continuous wave (CW) co-axial power coupler (PC). The outer conductor of the PC is stainless steel with 15 {micro}m copper film on the inside. The copper inner conductor operates at room temperature and contributes considerable infra-red radiation heat load to 2 K. Two thermal intercept heat exchangers cooled by supercritical helium are incorporated into the outer conductor to reduce the heat conducted to the lowest temperatures. A brief description of ... continued below

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9 p.

Creation Information

Blumenfelda, P. E.; Prenger, F. Coyne; Kelley, J. P. (John Patrick); Currie, S. A. (Scott A.); Stewart, J. A. (James A.) & Waynert, J. A. (Joseph A.) January 1, 2001.

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Description

A cryogenic test rig was designed and fabricated to measure the heat leak from room temperature to 2 K from the Accelerator Production of Tritium (APT) 700 MHz, 210 kW continuous wave (CW) co-axial power coupler (PC). The outer conductor of the PC is stainless steel with 15 {micro}m copper film on the inside. The copper inner conductor operates at room temperature and contributes considerable infra-red radiation heat load to 2 K. Two thermal intercept heat exchangers cooled by supercritical helium are incorporated into the outer conductor to reduce the heat conducted to the lowest temperatures. A brief description of the experimental apparatus is presented. A comparison of the experimental measurements and the predictions of a detailed thermal model is given. There is also a discussion of anomalous behavior observed in the thermal intercepts, and fluctuations in the helium coolant properties.

Physical Description

9 p.

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  • "Submitted to: Cryogenic Engineering Conference Madison, WI, July 16-20, 2001."

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  • Report No.: LA-UR-01-3794
  • Grant Number: none
  • Office of Scientific & Technical Information Report Number: 975635
  • Archival Resource Key: ark:/67531/metadc932484

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

Office of Scientific and Technical Information (OSTI) is the Department of Energy (DOE) office that collects, preserves, and disseminates DOE-sponsored research and development (R&D) results that are the outcomes of R&D projects or other funded activities at DOE labs and facilities nationwide and grantees at universities and other institutions.

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Creation Date

  • January 1, 2001

Added to The UNT Digital Library

  • Nov. 13, 2016, 7:26 p.m.

Description Last Updated

  • Dec. 9, 2016, 11:30 p.m.

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Blumenfelda, P. E.; Prenger, F. Coyne; Kelley, J. P. (John Patrick); Currie, S. A. (Scott A.); Stewart, J. A. (James A.) & Waynert, J. A. (Joseph A.). Experimental heat leak measurements on the APT 210 KW CW RF power coupler, article, January 1, 2001; United States. (digital.library.unt.edu/ark:/67531/metadc932484/: accessed October 19, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.