| 摘要 |
A method for determining the intensity I(Ech1) of gamma radiation of a radioelement from the known intensity I(Ech2) of gamma radiation of a standard radioelement, characterised in that it includes a step for calculating the intensity I(Ech1) as: I  ( Ech 1 ) = ( S  ( Ech 1 ) S  ( Ech 2 )  R 2 R 1  C d   2 C d   1  &Dgr;   &rgr; 2 &Dgr;   &rgr; 1  W A , 1 W A , 2 )  I  ( Ech 2 ) where S(Ech1) is the net area of the gamma radiation of the radioelement, S(Ech2) is the net area of the gamma radiation of the standard radioelement, R1 and R2 are respectively a total absorption efficiency of the radiation detector used for measuring S(Ech1) and of the radiation detector used for measuring S(Ech2), &Dgr;&rgr;1 and &Dgr;&rgr;2 are measurements of reactivity variation of a nuclear reactor measured by the oscillation technique, and relating respectively to the radioelement and the standard radioelement, WA,1 and WA,2 are respectively the neutron importance of the radioelement and the neutron importance of the standard radioelement, and Cd1 and Cd2 are respectively a radioactive decay correction datum of the sample and a radioactivity decay correction datum of the standard sample. |
