Using this program is probably the easiest way to calculate radioactive decay. Simply click on an element on the live periodic table for a list of isotopes of that element. Click again on the on the isotope of interest and you're off and running. The isotope is automatically listed on a setup window. Now you can enter the activity, select the units, enter the time and select the time units. The calculator will accept up to 40 nuclides simultaneously for calculation. All of the daughter nuclides are automatically tracked and the program combines them from different chains and from different source nuclides. A list of concentrations corresponding to the decay time you set is then reported. Up to 200 source and daughter nuclides in the result can be reported. The program will track the decay chain all of the way to stable byproducts for each of the almost 500 radionuclides included in the data base. Features: Capability to handle up to 40 parent nuclides; Capability to handle up to 200 combined parents and daughters; Decay Corrects (works with negative decay times); Automatically compensates for branching and convergent parents; Maps Decay Chains to Stable isotopes; Plots Radioactive Decay for up to 5 isotopes in two plot formats (linear and semi-log); Include a feature to Calculate the time interval from time and date input; Extensive User Help Facility; Saves and Retrieves case setup data. (Requires Windows 3.1, 95, 98, 2000, NT. or XP).

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