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## Main Question or Discussion Point

If the radiation flux is calculated as:

[itex]F = \frac{L}{2*pi*r^{2}}[/itex]

and the count rate of a scintillator

[itex]\frac{number-of-scintillations}{time}[/itex]

What is the relationship between them?

There obviously should be one, as the count rate depends on the distance from the source and the strength of the source, as does the radiation flux.

Is it just a linear relationship? I'm guessing it varies for different scintillators but do they all have a linear relationship, or at least an

Thanks!

[itex]F = \frac{L}{2*pi*r^{2}}[/itex]

*where L is the luminosity of the source and r is the distance from the source*and the count rate of a scintillator

[itex]\frac{number-of-scintillations}{time}[/itex]

What is the relationship between them?

There obviously should be one, as the count rate depends on the distance from the source and the strength of the source, as does the radiation flux.

Is it just a linear relationship? I'm guessing it varies for different scintillators but do they all have a linear relationship, or at least an

*almost*linear relationship?Thanks!