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 Frisker Type
cpm
Enter Background
cm
Enter Detector Width
cpm
Lower Limit of Detection (LLD)
Select MDC Units
dpm/100cm2
Bq/cm2
MDA/MDC Calculations for Scanning Instruments
Alpha or Beta
Gamma
cm/sec
dpm/100cm2
Minimum Detectable Contamination (MDC)
cm2
Enter Probe Area
cpm/dpm
Enter Efficiency
Enter Scan Speed
Calculates the MDA for scanning instruments (friskers) in motion. The faster the scan, the higher the MDA. For gamma scans, units may also be in uR/hr as well as pCi/g. The user must first determine the efficiencies in cpm per uR/hr or cpm per pCi/g using MicroShield or similar programs and the methods spelled out in the US NUREG 1507. Cpm per uR/hr may be achieved by comparing readings of the scan instrument to a pressurized ion chamber or other calibrated dose-rate instrument while both are exposed to a source of the site isotope of interest, at the scan distance.