Simple Formula Needed for Training

[John Pickering <johnjp@email.sjsu.edu>]

Greetings,

I am developing a simple training tool for delivery to radiation workers in
a general laboratory environment (not HP types). They will need to calculate
the dose to the dead layers of skin (assuming 7mg/cm2, standard density of
the dead layers of skin, assuming that is correct), live skin (the palm of
the hand, fingers and wrist - if I knew the thickness I could provide it)
and disposal gloves (I can provide the thickness at the finger tips, palm
and wrist). The formula will be used with Excel and Power Point.

I do not need an extensive formula. I only want to tell them what time it is
and not how to build a clock. This will be used as a part of an inquiry
based training program. In general, I will be giving the learner three
problems. Each will have one gamma, three low to high betas and one weak
beta (Tritium). They will be able to select gloves from a list (that
provides the thickness) and the amount of isotope. From there they will have
the software program calculate the doses. I hope to give them numbers and
have a bar graph grow to show the relative differences from the dead skin,
live skin and gloves. The intent is to allow the learner to recogize that
gloves do not always provide protection (gamma and the low beta (assuming no
skin absorbtion)) and how much protection they will receive from the gloves
when using the betas. They will not be doing the calculations. That would be
beyond this training level. I want them to understand the protection they
receive from the gloves. This is a common question I receive from researchers.

Your assistance is greatly appreciated.  

John Pickering
johnjp@email.sjsu.edu

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