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Problem for Quantum physics

  • Thread starter starsuck
  • Start date
5
0
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

Meir Achuz
Science Advisor
Homework Helper
Gold Member
2,169
63
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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