Recent content by timmo567

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    Is the Linear Attenuation Coefficient Proportional to Energy?

    is the linear attenuation coefficient named like it is because it is linearly proportional (inversely) to the energy? I have to read off the coefficient from a graph I have. I have the value for a 2MeV photon, if I want the value for a 1MeV photon is it simply twice the 2MeV value? Reading off...
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    Undergrad What is the correct order of operations for differentiating r^2 with 2/r*d/dr?

    as an example, say I am operating on r^2 with 2/r*d/dr : do I differentiate r^2 first, then times by 2/r or times by 2/r and then differentiate. Confused as they give different answers