

NuclideMasterPlus
TCCFCALC (True Coincidence Correction Factor CALCulation) utility has been added to Nuclide Master for:
Scope of application The calculation is based on MonteCarlo method using parameters of the required nuclides from the library of evaluated nuclear structure data ENSDF. The factors can be calculated for different detectors types (semiconducting and scintillation) which are saved in database compatible with EffMaker software. Marinelli vessels, cylinder and point can be used as the measurement geometries. Calculation of correction factors for true coincidence Truecoincidence summing in/out effect represents a serious problem in different applications of gammaspectrometry strongly influencing accuracy of the obtained analytical results. To solve this problem a special utility TCCFCALC (True Coincidence Correction Factor CALCulation) was created. It allows to perform calculations for any known gammaemitting radionuclides and for a wide set of measurement geometries including scintillation and HPGe detectors with point and volumetric sources (Marinelli or cylindrical beaker with arbitrary dimensions). The calculation is based on the MonteCarlo method with application of the most complete, precise and recent decay data from Evaluated Nuclear Structure Data File (ENSDF). High precision and reliability of calculations with TCCFCALC, which were confirmed by numerous tests, were achieved due to the most complete consideration of the physical processes, contributing to the truecoincidence summing. In addition to gammagamma correlations they include correlations between gammarays and annihilation photons accompanying b+decay and correlations between gammarays and Xrays of K and Lseries emitted as a result of the internal conversion and electron capture processes. Besides the spatial correlations of gammarays (so called gammarays angular correlations) and time dynamics of a decay (finite livetimes of exited states of a daughter nucleus) are taken into account.
State Registration Nuclide Master Plus was registered in the State Register of computer programs on the 6th of May 2014. 

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