Reliability analysis for the facility data acquisition interface system upgrade at TA-55

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Description

Because replacement parts for the existing facility data acquisition interface system at TA-55 have become scarce and are no longer being manufactured, reliability studies were conducted to assess various possible replacement systems. A new control system, based on Allen-Bradley Programmable Logic Controllers (PLCs), was found to have a likely reliability 10 times that of the present system, if the existing Continuous Air Monitors (CAMS) were used. Replacement of the old CAMs with new CAMs will result in even greater reliability as these are gradually phased in. The new PLC-based system would provide for hot standby processors, redundant communications paths, and ... continued below

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31 p.

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Turner, W.J.; Pope, N.G. & Brown, R.E. May 1, 1995.

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Description

Because replacement parts for the existing facility data acquisition interface system at TA-55 have become scarce and are no longer being manufactured, reliability studies were conducted to assess various possible replacement systems. A new control system, based on Allen-Bradley Programmable Logic Controllers (PLCs), was found to have a likely reliability 10 times that of the present system, if the existing Continuous Air Monitors (CAMS) were used. Replacement of the old CAMs with new CAMs will result in even greater reliability as these are gradually phased in. The new PLC-based system would provide for hot standby processors, redundant communications paths, and redundant power supplies, and would be expandable and easily maintained, as well as much more reliable. TA-55 is the Plutonium Processing Facility which processes and recovers Pu-239 from scrap materials.

Physical Description

31 p.

Notes

INIS; OSTI as DE95012117

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  • Other Information: PBD: May 1995

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  • Other: DE95012117
  • Report No.: LA--12938
  • Grant Number: W-7405-ENG-36
  • DOI: 10.2172/72885 | External Link
  • Office of Scientific & Technical Information Report Number: 72885
  • Archival Resource Key: ark:/67531/metadc707706

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Office of Scientific & Technical Information Technical Reports

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Creation Date

  • May 1, 1995

Added to The UNT Digital Library

  • Sept. 12, 2015, 6:31 a.m.

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  • Feb. 26, 2016, 4:06 p.m.

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Turner, W.J.; Pope, N.G. & Brown, R.E. Reliability analysis for the facility data acquisition interface system upgrade at TA-55, report, May 1, 1995; New Mexico. (digital.library.unt.edu/ark:/67531/metadc707706/: accessed July 22, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.