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RadCalcLE™ is a
utility program to aid people using instruments made by Ludlum Measurements,
Inc. to determine certain detection limits quickly, easily, and accurately. The
"LE" stands for "Ludlum Edition." RadCalcLE version 1.0 performs all of the
important statistical calculations for measurements of radioactive surface
contamination including minimum detectable activity (MDA), detection limit
(sometimes called minimum detectable count rate or MDCR), and critical level (Lc).
It also calculates sample activity. Input and results can be in any commonly
used U.S. or metric units of count rate, activity, and area--all unit
conversions are performed automatically. Specific Ludlum instruments and
detectors can be selected from dropdown lists so that it is not necessary to
calculate time constants or detector area. (Or you can manually input these
parameters in case you happen to have an old instrument or detector from some
other manufacturer hanging around.)
The program is designed be intuitive and extremely simple to use. Results can be
printed for reference, saved as a text file (for import into word processing
programs), or copied and pasted into other applications. RadCalcLE continuously
updates the results given, so no "calculate" button needs to be pressed and no
bogus results will ever be displayed, saved, or printed.
RadCalcLE can be navigated using the mouse, keyboard, or both, using standard
Windows™ technique.
RadCalcLE is free to use and distribute (so long as you don't charge for it!). A
full version (RadCalc Pro) is available that also calculates detection limits
for wipe and air samples, calculates radioactive decay and half life, contains a
large database of radioactive isotopes including radiations, energies, and
intensities, performs many unit conversions and more. To purchase this full
version, contact
RadPro.
Click
RADCALC to Download the RadCalc LE utility
program.
You will be given the option to "Save to Disk" or "Open" the program after
completing the above procedure. Select "Save to Disk". Unzip the files and
double-click on RadCalcLE.exe to run the program.