Problem for Quantum physics

  • Thread starter starsuck
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  • #1
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here is the question.
Researchers want to construct a scattering experiment using a powerful source of 5.5 MeV alpha-particles to scatter from a gold foil. They want to be able to count 1 particle/s at 50 degree. Their detector subtends a small angle and is limited to a maximum count rate of 2,000 particles/s.
Will their experiment work without modifying the detector if the other angle they want to measure is 6 degree.

Can anyone help me out on this question? I do not know which eqution I have to apply. (Rutherford eq probably??)
 

Answers and Replies

  • #2
Meir Achuz
Science Advisor
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You need the formula for the Rutherford differential cross section.
Then check if sigma(6)/sigma(50) is less than 2000.
 

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