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US-DPRK Next Steps Workshop January 27, 2003 Washington, D.C. Yongbyon Spent Fuel Experience Presented by Mark Mohr Mark.mohr@hq.doe.gov. Background. Under the Agreed Framework, signed between U.S. and DPRK in 1994, U.S. agreed to arrange for DPRK to receive two light-

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Us dprk next steps workshop january 27 2003 washington d c

US-DPRK Next Steps WorkshopJanuary 27, 2003 Washington, D.C.

Yongbyon Spent Fuel Experience

Presented by Mark Mohr

Mark.mohr@hq.doe.gov


Background

  • Under the Agreed Framework, signed between U.S. and DPRK

  • in 1994, U.S. agreed to arrange for DPRK to receive two light-

  • water reactor (LWR) power plants, and 500,000 tons of heavy

  • fuel oil annually until first LWR came online

  • In return, DPRK agreed to freeze its graphite-moderated reactors

  • and related facilities and to dismantle eventually these reactors

  • and related facilities

  • U.S. and DPRK also agreed to cooperate in finding a method to

  • store safely the spent fuel from the 5 MW (e) experimental reactor

  • during the construction of the LWR project, and to dispose of the

  • fuel in a safe manner that does not involve reprocessing in DPRK


Basic Data On Reactor And Fuel

  • Discharged from reactor May-June 1994 time frame

  • 8,017 fuel rods declared

  • Contains 25-30 kg Plutonium

  • Magnesium-zirconium cladding


DOE’s Responsibility

  • Spent Fuel Canning

  • Water Treatment

  • Maintenance


Spent Fuel Canning

  • Fuel sealed in cans and water removed to restrict

  • corrosion; argon cover gas with 2% oxygen

  • Canned fuel allows IAEA to monitor the fuel more easily

  • Necessary first step in removing fuel from DPRK

  • Cans minimize further escape of radioactive contaminants


Corners of storage rack

to access canisters

Storage

Rack

Seal

Plate


Status

  • All accessible fuel rods and pieces now canned

  • Leaking canisters being repaired

  • Spent fuel being maintained until removal

  • Ultimate disposition of spent fuel yet to be determined


Costs

  • About $34M to date

  • Projected at approximately $2M per year for

  • maintenance until removed from DPRK


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