a Decade of Dosimetry for Magnox Reactor Plants

This paper reviews the reactor dosimetry program that has supported steel pressure vessel integrity assessments for magnox power plants over the last ten years. The dosimetry program has aimed to achieve consistent:.

• calculated and measured fast and thermal neutron doses.

• data for surveillance specimens and reactor pressure vessels.

Throughout the program, the flux measurements on the plants have been judged essential for any doses where a high degree of confidence is required. The work to support operation is now largely complete and the dosimetry is being extended to assess radioactive inventories as part of the decommissioning process.