Physics is not my strongest suit and I always come to a road block when rearranging the equations. However, I am blessed to come across your video and learn this before the lecture. I'm sure they will all come to a pause! Can't thank you enough :)
It we are looking for the attenuation coefficient of a material using a mammography machine, could we instead of Watts use pixel intensities as I0 and I?
Interesting, I am not familiar with using this machine, so hard for me to answer. I imagine the pixel intensities might be directly related to the intensity of the x-rays striking however I'd research this as I don't have experience with this.
@@zhelyo_physics This formula is theoretically valid for a homogeneous material where the probability of an attenuating interaction of the X-rays with the matter in small layers perpendicular to the incident beam is constant. This leads directly to an exponential decrease in the number of photons in this beam, since the attenuation decreases by a constant factor with each constant small step through the material.
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Physics is not my strongest suit and I always come to a road block when rearranging the equations. However, I am blessed to come across your video and learn this before the lecture. I'm sure they will all come to a pause! Can't thank you enough :)
Thank you very much sir for this. please is ln the same as log?
anytime! So ln is logarithm base e (Euler's number) and log is logarithm base 10. Hope this helps!
thanks my doctor,You are very good
thanks a lot for the comment!
Very well explained, thank you
anytime! thanks for the comment!
It we are looking for the attenuation coefficient of a material using a mammography machine, could we instead of Watts use pixel intensities as I0 and I?
Interesting, I am not familiar with using this machine, so hard for me to answer. I imagine the pixel intensities might be directly related to the intensity of the x-rays striking however I'd research this as I don't have experience with this.
Thank you very much
Anytime! Thanks for the comment!
Which theorem does this equation belong to?
no specific theorem so far as I'm aware, just exponential decay : )
I study in french even though I got it tnk u
Dear sir
How to find initial intensity (I0)?
depends on the question, typically rearrange I(o)=I/(e^(-mux) but it can depend on the question
What’s e in this
It's Euler 's number which is written as e as a function in your calculator. Hope this helps!
Why don't you explain why the intensity is exponentially decreasing with x?
it is generally not required for the course that I teach, I am pretty sure that this is an experimental law rather than a derived one.
@@zhelyo_physics This formula is theoretically valid for a homogeneous material where the probability of an attenuating interaction of the X-rays with the matter in small layers perpendicular to the incident beam is constant. This leads directly to an exponential decrease in the number of photons in this beam, since the attenuation decreases by a constant factor with each constant small step through the material.