How to Calculate Absorbed Dose in Mixed Liquid Phantoms from X-ray Machines?

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The discussion centers on calculating the absorbed dose in a phantom using the formula Dose phantom = Dose air x (mSwall / mSair) x (mass absorption coefficient phantom / mass absorption coefficient of wall material). To determine the absorption coefficient for a liquid mixture, it is suggested that the absorption should be proportional to the masses of the components. For example, in a solution with 100 g of salt in 1000 g of solution, the absorption coefficient would be a combination of those for 100 g of salt and 900 g of water. When dealing with polymers, the absorption coefficients should reflect the percentages of monomers and water present. Additionally, for measuring absorbed dose in a gel using an X-ray machine, the charge obtained from an electrometer can be substituted into the formula to find the absorbed dose accurately.
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Dose phantom = Dose air x ( mSwall / mSair ) x ( mass absorption coefficient phantom/ mass absorption coefficient of wall material ).

if I want to to find absorbed dose in a type of liquid ( combined different type ), how to find the absorption coef?
 
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I suppose you talk about absorption of radioactivity?
Then the absorption of the mixture should be proportional to the masses of the components in the mixture. E.g. if you have a solution containing 100 g Salt per 1000g solution, then you use the absorption coefficient for 100g of Salt + that for 900g of water.
 
thank Q.means that , if the liquid is polymer, so I need to use the percentage of monomer? and water ?
actually, I need to find Absorbed dose in my gel from X-ray machine..using electrometer, we got charge,then sbstitute into that formula..am I right Dr?
 

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