Addendum 1 to CSER 97-025: PFP storage of 9.25/9.5 inch tall, 4.4 kg Pu cans on existing Vault 4 pedestals

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Description

A nuclear criticality safety analysis has been performed to increase the approved plutonium mass limit for cans stored in Vault {number_sign}4 cubicles at PFP. The original CSER 96-025 accommodated the storage of 4.4 kg of plutonium in PuO, (5.0 kg PuO,) in Vault {number_sign}4 by requiring that half the cubicles be left vacant. This addendum allows for all the cubicles to be used, but with a fissile plutonium mass limit of 58 kg per cubicle. A mass limit for each cubical allows for storage of a larger number of cans if some have less than the 4.4 kg Pu limit ... continued below

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48 p.

Creation Information

Hillesland, K.E. September 4, 1997.

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This report is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided by UNT Libraries Government Documents Department to Digital Library, a digital repository hosted by the UNT Libraries. It has been viewed 17 times . More information about this report can be viewed below.

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  • Fluor Daniel Hanford, Inc.
    Publisher Info: Fluor Daniel Hanford, Inc., Richland, WA (United States)
    Place of Publication: Richland, Washington

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Description

A nuclear criticality safety analysis has been performed to increase the approved plutonium mass limit for cans stored in Vault {number_sign}4 cubicles at PFP. The original CSER 96-025 accommodated the storage of 4.4 kg of plutonium in PuO, (5.0 kg PuO,) in Vault {number_sign}4 by requiring that half the cubicles be left vacant. This addendum allows for all the cubicles to be used, but with a fissile plutonium mass limit of 58 kg per cubicle. A mass limit for each cubical allows for storage of a larger number of cans if some have less than the 4.4 kg Pu limit per can. The highest k., calculated is 0.932 + 0.003 when an overbatched can is present in every fourth cubicle. This is below the criticality safety limit of kff 0.935, and consequently, an increase of plutonium mass to 4.4 kg per can is within acceptable safety limits for the given mass limit.

Physical Description

48 p.

Notes

INIS; OSTI as DE99050231

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  • Other Information: PBD: 4 Sep 1997

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  • Other: DE99050231
  • Report No.: HNF-SD-SQA-CSA--528
  • Grant Number: AC06-96RL13200
  • DOI: 10.2172/341300 | External Link
  • Office of Scientific & Technical Information Report Number: 341300
  • Archival Resource Key: ark:/67531/metadc675923

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  • September 4, 1997

Added to The UNT Digital Library

  • July 25, 2015, 2:20 a.m.

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  • June 14, 2016, 1:55 p.m.

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Hillesland, K.E. Addendum 1 to CSER 97-025: PFP storage of 9.25/9.5 inch tall, 4.4 kg Pu cans on existing Vault 4 pedestals, report, September 4, 1997; Richland, Washington. (digital.library.unt.edu/ark:/67531/metadc675923/: accessed July 20, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.