1) the isotope,
2) the time that the amount of activity is initially measured
(the calibration time),
3) the amount initially measured (the calibration dose),
4) the time the radioisotope is used (the administration
5) the amount of radioactivity left when used (the
6) the volume (arbitrary units) of the calibration dose
7) the volume of the adminstration dose
The basic concept is to select the isotope, enter any three of the remaining fields and calculate the fourth. Touching the displayed value in any one of the five fields will bring up an appropriate keypad or picker to enter a new value. The other field values will then turn red (indicating they may no longer be valid) until the user touches one of the six calculation buttons (Cal Time, Cal Dose, Admin Time, Admin Dose, 'Cal Vol' or 'admin Vol'). Changing the isotope value results in recalculation of the administration dose field as appropriate for the new half-life value associated with the selected isotope.
The release of DoseCalc supports the following isotopes: C-11, Co-57, Co-60, Cu-64, Ga-67, Ga68, F-18, Ge-68, H-3, Ho166, I-123, I-124, I-125, I-131, In-111, Lu177, Mo-99, N-13, O-15, P-32, Rb-82, Re186, Re188, Tc-94, Tc-99m, Tl-201, Xe-133, and Y-90. Future releases will add additional isotopes and give the user the ability to add isotope information of their own to the application.
For more information on using the application, visit the PawDuction software web site
What's new in this version:
Removed the warning message for the administration time being earlier than the calibration time at the request of radiation safety users. Added calibration and administration volume (arbitrary units) fields and calculation options. The volume addition can be used to determine what fraction to take out of a larger volume for a desired dose.