Office for Nuclear Regulation

Withdrawal Notifications for 2017 (from 1 January 2017 to 31 December 2017)

Information on advance notifications of withdrawals of nuclear material from safeguards made in 2017 is shown in the table below.  The withdrawals involved material used as radiological shielding or small quantities of material for use in instrument calibration or radiation detectors, or as analytical tracers or for research and development.

Summary of Notifications of Withdrawals from Safeguards (1 January 2017 to 31 December 2017).

Number of withdrawal notifications (by type of nuclear material involved)1 Reason for withdrawal
One notification involving plutonium (Pu) only and one other notification involving plutonium and uranium (U), total mg quantities This material was withdrawn for use in analysis (e.g. as samples, standards/tracers and/or in instrument calibration)2
Five notifications involving high enriched uranium (HEU), total 2g This material was withdrawn for use in radiation detectors2
Twenty three notifications involving depleted uranium (DU), total 491kg and five notifications involving uranium (U) and/or thorium (Th), total mg quantities The withdrawals of depleted uranium were materials incorporated in shielding containers3
The mg quantities of Uranium and/or Thorium were withdrawn for use in analysis (e.g. as samples, standards/tracers and/or in instrument calibration)2

Notes

  1. the tabulated information covers advance notifications of withdrawal approved by ONR Safeguards and which resulted in the withdrawal of nuclear material from safeguards.
  2. here are no facilities outside safeguards that have material in such quantities and forms, and defence establishment requirements for these specialist materials have therefore been met by supply from civil organisations.
  3. the advance notifications of withdrawal for depleted uranium shielded containers were for temporary withdrawals, the containers being used during the replacement of spent radioactive sources at UK defence establishments.