"Deferred Pending Need" R&D Tasks

• Heavy concrete/cermet demo cask
• Dose calculation
  • Driver: use of DU metal counterweights in a forklift offers savings in warehouse cost
  • Multiple problems: DU metal is costly, dose to driver appears too high, control of large DU mass after use
• Cylinder reuse: part of UDS scope, no R&D need
• Long-term storage of DU
  • Not an issue under current disposition approach
  • May need some work later to ensure retrievability
• Disposal of DU: Not yet an issue