From key@physics.utoronto.ca Fri Apr  4 17:50:22 2008
Date: Fri, 04 Apr 2008 17:50:22 -0400
From: Tony Key <key@physics.utoronto.ca>
To: Olivia Ng <o.ng@utoronto.ca>
Subject: Re: Dose Rate from Co-60

No, that is a wrong application of the formula. Think about it!  You need to
multiply the difference by the surface area and divide by the mass.  The
value is an average over the tissue, bone, muscle, etc. of the body.

TonyK

Olivia Ng wrote:
> Hi Prof. Key,
> 
> For problem set #6 on Mastering Physics, I'm a bit confused about part C
> of the second question. What exactly is the "average" dose rate that we
> are asked for? I calculated the difference in fluence rates entering and
> exiting the body, and multiplied it by the given mass energy absorption
> coefficient to get the dose rate. This did not give me the correct answer,
> so what is the question asking us for? And what did I calculate instead?
> 
> Thank you very much!
> 
> - Olivia Ng
>