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External Radiation Dose Calculator
(Virtual Geiger Counter)

(last updated 13 July 2009)
Requires Netscape 3.0, Internet Explorer 3.0 or higher. JavaScript must be enabled. Does not work on Netscape for Windows 3.1. For educational purposes only. No warranty.
For optional graphical output, Java must be enabled (uses Java applet wupDraw).
ORNL is the source of the decay data used in this calculator.

Calculate radiation dose from shielded gamma source.

Enter parameters and click the "Calculate" button below. HELP new window
Numbers can be entered in exponential notation: 5 · 10-6 = 5e-6

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Mode     HELP new window
Point Source
Volume Source 		Number of Shield layers:

The parameters can optionally be initialized with these sample data sets (set appropriate source mode first!):
Shielding in free air (for Point Source Mode)
Uranium mill tailings cover (for Volume Source Mode)
48Y Cylinder with UF6nat (for Volume Source Mode and 1 shield layer)
48Y Cylinder with Heels (for Point Source Mode and 1 shield layer)
DU bullet buried in soil (for Point Source Mode, at least 1 shield layer)

 

    Source Parameters                 HELP new window
        Receptor Parameters             HELP new window

Gamma dose factor [Sv/Gy]

 
        Geometry Parameters             HELP new window
y - Distance of receptor from x-axis [cm]
 - or - b - Distance of receptor from shield rear surface [cm]
Show color map:   Raster width [pixel]     ·     Logarithmic color scale:   Decades

 
Java is not enabled. No graphical output.

Select other receptor locations with mouse click!
 
           HELP new window      
 

Results


(... copy and paste ...)
 

> See also:

 

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