For those needing portability, Rad Pro for Desktop works with Windows 8.1/10 tablets. Will not work with Surface tablets running Windows RT.
Select Calculation
Enter Known Dose-Rate
At Known Distance (Enter)
Initial Data
mR/hr
Feet
mR
Enter Dose Limit
Feet
Enter Distance
Hours
Calculated Stay Time
Select Dose-Rate Units
mR/hr
R/hr
mrem/hr
rem/hr
mSv/hr
Sv/hr
Select Stay Time Units
Select Dose Limit Units
Select Distance Units
Hours
Minutes
mR
R
mrem
rem
mSv
Sv
Feet
Meters
ALARA Calculations (Time, Distance and Shielding)
Stay Time
Stay Time - Add Shielding
Distance
Distance - Add Shielding
Dose Received
Dose Received - Add Shielding
Classic time, distance and shielding ALARA calculations. The known dose-rate may be from in field measurements or if the isotope and activity of the source are known, the Rad Pro Calculator gamma calculator may be used to calculate it. If the working distance and exposure limit are known, the stay time until the limit is reached may be calculated. If the time to complete the job and the exposure limit are known, the working distance may be calculated. If the working distance and the time to do the job are known, the exposure received may be calculated. In all cases, shielding may be added to increase the stay time or decrease the working distance.