7.10. Accidental Gain

To register a nuclear material unexpectedly found to be present in the MBA, except when detected in the course of a physical inventory taking (PIT), the user should use the Accidental Gain command from the Operations submenu (see Fig. 7.21). Since the found nuclear material could be of any type, NUCMAT provides the most general interface to describe the found nuclear material.

Depending on Physical form of the found nuclear material NUCMAT offers 2 different set of fields to be filled in.

If Physical form is “Fuel Element”, then user is required to provide following information (see Fig. 7.25):

· Batch number,

· Element,

· Fuel Type,

· Burnup,

· Enrichment,

· Weigh of U, U235, Pu,

· Unit of measurement (g, kg),

· Chemical form,

· Irradiation Status (if burnup is set “0” then NUCMAT automatically sets “Fresh Fuel”),

· Manufacturer ID,

· Location: MBA, KMP, Building (Room, Cabinet, Box),

· Measurement Basis,

· Flow KMP,

· Date of finding.

Fig. 7.25. Accidental Gain

If Physical form is other than “Fuel Element” then user is required to provide following information (see Fig. 7.25):

· Batch number,

· Physical Form,