Computer Chemistry Consultancy - XML4Pharma, Schlossbergstr. 20, 78224 Singen, Germany, +49 7731 975044, info@CompChemCons.com
Radioactive Decay Calculation Applet
Developed by Computer Chemistry Consultancy
This is a tool that we developed as part of a database-driven application for a pharmaceutical company (Radioactive Materials Supply Management). The applet reads information (element, nuclide number, half life) from a simple textfile (Nuclides.txt - in the real application the information comes from a database). Then the following calculations can be performed:
To perform an activity calculation, choose a nuclide, the activity, and the start and ending date. You can also use this to find out what the activity was in the past, e.g. when the sample entered the company.
To perform a calculation of a date at which a certain activity is (or was) reached, use the "Date Calculation" radiobutton. You can then enter a value for the required activiy. You can also use this to find out at which date in the passed the activity was present.
Activities can only have numeric values (try to enter something else and see how it is simply ignored !).
This applet requires you to have the Java-2 plugin installed.
If this is not the case, the browser should simply ask
you to download and install it from the Sun Microsystems Java website.
If you do not have the Java-2 plugin installed, and your browser does not install it automatically,
go to the Sun website,
go to the "Download Production Release 1.3" section and install the Java-2 plugin following the instructions.
This tool was designed, constructed, tested and deployed in just somewhat more than 2 working days. It shows how efficiently intranet tools can be developed (we are however specialists in Chemistry and in Java !), using reusable compounds (we have a whole library of them).
DownloadYou can download this applet and use it freely (even on your intranet). If you find any bugs, please let us know.
You need to download the following components, and install them in the same directory
A few other applets and applications found on internet (there are many more ...):
Jos Aerts, Computer Chemistry Consultancy, August 2001