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Safety and Security of Commercial Spent Nuclear Fuel Storage Public Report (2006) / Chapter Skim
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Pages 69-74

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From page 69...
... . It is the potential for zirconium cladding fires in spent fuel pools that gives dry cask storage most of its comparative safety and security advantages.
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From page 70...
... The fuel in dry cask storage poses less of a risk in the event of a terrorist attack than newly discharged fuel in pools because there is substantially reduced probability of initiating a cladding fire. FINDING 4D: Dry cask storage for older, cooler spent fuel has two inherent advantages over pool storage: (1)
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From page 71...
... Please use the DRY CASK STORAGE AND COMPARATIVE RISKS 71 result only in the mechanical dispersal of some of its radionuclide inventory in the immediate vicinity of the cask. FINDING 4E: Depending on the outcome of plant-specific vulnerability analyses described in the committee's classified report, the Nuclear Regulatory Commission might determine that earlier movements of spent fuel from pools Into dry cask storage would be prudent to reduce the potential consequences of terrorist attacks on pools at some commercial nuclear plants.
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From page 72...
... Please use the print version of this publication as the authoritative version for attribution. TABLE 4.1 Dry Casks Used for Spent Fuel Storage in the United States TABLE 4.1 Dry Casks Used for Spent Fuel Storage in the United States Cask design License holder Type Construction Closure system Number of casks used to Cask design License holder Fuell type Fue type Construction Closure system Number of casks used to Type used for date; sites; and number used for dale: sites; and number storage of casks on order1 storage of casks on order1 CASTOR V/21 Bare-fuel, BWR Ductile cast Iron Primary lId (44 bolts)
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From page 73...
... thick, two rebar in, thick, fora rebar nd cages, a cages, and concrete concrete DRY CASK STORAGE AND COMPARATIVE RISKS Canister lid, welded 80 loaded (2 sites) ; 165 PWR, Metal canister Canister NAC-UMS NAC International NAC-UMS MAC International Metal canister (2 sites)
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From page 74...
... Please use the print version of this publication as the authoritative version for attribution. 2 1The NOTES: DRY CASK STORAGE AND COMPARATIVE RISKS SOURCES: Data compiled from cask license holders (2004)
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Key Terms

  • spent fuel
  • zirconium cladding
  • fuel storage
  • fuel pool
  • terrorist attacks

  • nuclear regulatory
  • dry cask
  • cladding fire
  • regulatory commission
  • fuel pools

  • cask storage
  • pool storage
  • terrorist attack
  • security advantages
  • power plant

  • dry casks
  • commercial nuclear
  • radioactive material
  • cladding fires
  • potential safety

  • attack scenarios
  • classified report
  • cask designs
  • commission staff
  • reactor sites

  • plant operators
  • committee judges
  • material releases
  • potential consequences
  • storage versus


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