Distance of closest approach of alpha particle

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Homework Help Overview

The discussion revolves around the concept of the distance of closest approach of an alpha particle colliding with a lead nucleus, a topic that the original poster finds unclear and is seeking clarification on.

Discussion Character

  • Conceptual clarification

Approaches and Questions Raised

  • The original poster expresses confusion about the concept and seeks to understand it better. Some participants question the information provided and suggest considering the kinetic energy of the alpha particle in relation to its interaction with the nucleus.

Discussion Status

The discussion is ongoing, with participants exploring the definition and implications of the distance of closest approach. There is an acknowledgment of the original poster's request for clarification, and some guidance has been offered regarding the kinetic energy aspect.

Contextual Notes

There is a noted lack of specific information regarding the parameters of the problem, such as the kinetic energy of the alpha particle, which may be relevant to the discussion.

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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