- Parent Category: 06 Quantum Physics
- Category: 02 Nuclear
- Created: Monday, 07 December 2015 12:15
- Last Updated: Thursday, 25 May 2017 16:46
- Published: Monday, 07 December 2015 12:15
- Written by leongster
- Hits: 4896
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Fu-Kwun Hwang - Dept. of Physics, National Taiwan Normal Univ.; lookang; leongster
Assume the number of radioactive nucleus is N(t) --- not yet decayed into daughter product.
Each nucleus has the same probability p (p<1) decayed into daughter product.
It means that dN(t)/dt= -p*N(t) , where dN(t) is the number of nucleus decayed into daughter product at time t.
The solution is N(t)=N0 e -pt = N0 e -(ln2/T0.5)) t where N(0) is total number of nucleus at time t.
Each box represent a nucleus.
This applet let you set the probability for a nucleus to decay and watch how the number of decayed nuclei (color changed to RED) increased with time t.
- http://www.phy.ntnu.edu.tw/ntnujava/index.php?topic=194.0 by Fu-Kwun Hwang original Java version
- http://www.opensourcephysics.org/items/detail.cfm?ID=10576 by Wolfgang Christian similar Java version