This model is designed so that the decay of three isotopes can be compared. Note that the comparison should occur between half-lives measured in the same units. STELLATM software is needed to view the model in Mac (hqx) format or PC format. [Diagram Level | Equations Level | Graphs ] Amt_Nuclide(t) = Amt_Nuclide(t - dt) + (- Rate_of_decay) * dt INIT Amt_Nuclide = 1000 OUTFLOWS: Rate_of_decay = Decay_Constant*Amt_Nuclide Decay_Constant = LOGN(2)/Half_life Half_life = 30 Time Specs Range: 0 -100; dT = 1; Integration Method = Runge-Kutta 4 Sensi Specs Run #1: Half_life = 5.26 Run #2: Half_life = 28.8 Run #3: Half_life = 30.0

Home | Contact | Site Map | Search