Distance of closest approach of alpha particle

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SUMMARY

The discussion centers on calculating the distance of closest approach of an alpha particle colliding with a lead nucleus. Participants clarify that this concept involves understanding the kinetic energy (KE) of the alpha particle and how it transforms during the interaction with the nucleus. The distance of closest approach is defined as the minimum distance between the alpha particle and the nucleus during the collision, which is influenced by the initial KE of the alpha particle. A reference link to HyperPhysics provides additional context on the topic.

PREREQUISITES
  • Understanding of kinetic energy in nuclear physics
  • Familiarity with alpha particle interactions
  • Basic knowledge of electromagnetic forces
  • Concept of potential energy in nuclear collisions
NEXT STEPS
  • Study the concept of distance of closest approach in nuclear physics
  • Learn about the conservation of energy in particle collisions
  • Explore the role of electromagnetic forces in nuclear interactions
  • Review the HyperPhysics resource on nuclear physics for detailed explanations
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Students and educators in physics, nuclear physicists, and anyone interested in understanding particle interactions and nuclear collision dynamics.

Fallen Seraph
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In an electromagnetics question I've been asked to calculate the distance of closest approach of an alpha particle which collides with a lead nucleus, but I've never come across the concept of the distance of closest approach. My book is mute on the subject and google yields nothing but more questions on the matter. What does it be exactly?
 
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You didn't say what information you were given. I suspect you are given KE of the alpha and can assume it is fired directly at the lead nucleus. In that case what is the KE when the nucleus stops it and where did the KE go?
 
Oh I ask not for an answer or even a method. My apologies if I was unclear. I'm just unacquainted with the concept of distance of closest approach, and was wondering if I could become acquainted with it?
 
Isn't "distance of closest approach" self explanatory? Maybe I don't understand your non-question? Can you be more specific?
 
http://hyperphysics.phy-astr.gsu.edu/hbase/nuclear/rutsca2.html"
 
Last edited by a moderator:
Ah right. There we go. Thanks a lot for that.
 

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