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Forum: Space Applications
Re: Question Dose equivalent (Geng)
Date: 24 Jun, 2012
From: Youming Yang <Youming Yang>

Hello Geng,

In general, please provide more detail in your queries.

Are you inquiring about biological doses (dose equivalent and equivalent dose)? If so, I am not sure "space applications" is quite where you should be looking for your answers.

If you are indeed inquiring regarding the biological doses, the question you have asked involves quite a bit more work than just viewing another person's sample code. You should review literature on the following topics:

The meaning behind dose equivalent and equivalent dose [Sv] in relation to just dose [Gy] (also [J/kg]).

Once you understand this, you should review literature on the calculations of dose equivalent and equivalent dose. One involves weighing factors involving specific organs within a human body, the other involves the beam quality you mentioned, but still in relation to a human body.

Finally, within your code itself, for any geometry which you define to be part of the body, you may scale energy deposited (search for edep in one of the many examples) by the appropriate quality factor, and score that value instead.


On Sat, 23 Jun 2012 09:44:36 GMT, Geng wrote:

> Dear experts:
> I want to know something detail about the dose equivalent part.
> I only have the method to calculate the absorb dose but not the dose
> equivalent.
> Could you tell me the detail method in geant4 to realize the dose
> equivalent calculation with quality factor?
> Or you may only send an example code of this part,I would study it by
> myself.
> Thanks and best regards!

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