- #1
~Sam~
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Homework Statement
When detecting alpha decay with a spectrometer, why is it important to evacuate the chamber to create a adequate vacuum for where the source is place? Why is it better to place a radioactive source underneath a detector facing up rather than above the detector and facing down?
Homework Equations
None.
The Attempt at a Solution
I'm guessing the pump will evacuate any particles in the air that would absorbed the alpha particles. For the second part, I'm not so sure because radiation emits out evenly, so how would it make a difference?