FISSION-PRODUCT MONITORING IN EBR-I, MARK IV

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Description

A description is given of the development and testing of a monitoring system which announces and analyzes the seriousness of a fuel cladding failure. The system is based on the method of passing the cover gas of the NaK coolant system through an electrostatic precipitation unit, passing the wire carrying the neutralized daughters of the rare gas fission products through a Hg trap gas seal into some water, and counting the resulting radioactive water. Since /sup 41/K, the daughter of /sup 41/Ar, is inactive, the water activity is almost exclusively that of the various Rb and Cs fission products. The ... continued below

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12 p.

Creation Information

Smith, R.R. & Doe, C.B. January 1, 1964.

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Description

A description is given of the development and testing of a monitoring system which announces and analyzes the seriousness of a fuel cladding failure. The system is based on the method of passing the cover gas of the NaK coolant system through an electrostatic precipitation unit, passing the wire carrying the neutralized daughters of the rare gas fission products through a Hg trap gas seal into some water, and counting the resulting radioactive water. Since /sup 41/K, the daughter of /sup 41/Ar, is inactive, the water activity is almost exclusively that of the various Rb and Cs fission products. The equipment is described, and results are reported of some experimental tests. The discrimination against /sup 41/Ar was found to be satisfactory, and essentially all the water activity was due to /sup 88/Rb, /sup 89/Rb, and /sup 138/Cs. The background components were separated and compared, and the ratio of the normal Rb-- Cs activity to the other background components is 0.58. Results of a failure simulation experiment using unclad enriched U foils indicated that the failure of a Mark-IV fuel rod cladding would be detectable. (D.L.C.)

Physical Description

12 p.

Source

  • Other Information: Orig. Receipt Date: 31-DEC-64

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Identifier

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  • Report No.: ANL-6788
  • Grant Number: W-31-109-ENG-38
  • DOI: 10.2172/4027855 | External Link
  • Office of Scientific & Technical Information Report Number: 4027855
  • Archival Resource Key: ark:/67531/metadc864198

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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, 1964

Added to The UNT Digital Library

  • Sept. 16, 2016, 12:32 a.m.

Description Last Updated

  • Oct. 11, 2017, 3:26 p.m.

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Smith, R.R. & Doe, C.B. FISSION-PRODUCT MONITORING IN EBR-I, MARK IV, report, January 1, 1964; United States. (digital.library.unt.edu/ark:/67531/metadc864198/: accessed November 21, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.