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RADCALC
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. But that one costs money.
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. Double-clicking
on the RadCalc zip icon should reveal the files
associated with the utility program. Double-clicking on the file
labeled "Setup.exe" should
allow you to install and use the RadCalc Program.
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