Cyclotron - relationship between velocity and radius

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Discussion Overview

The discussion revolves around the relationship between the velocity of electrons and the radius of their path in a cyclotron. Participants explore how the acceleration of electrons affects their kinetic energy and the resulting radius of their circular motion, questioning the underlying principles and equations involved.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • Some participants note that as the velocity of the electron increases, the radius of its path also increases, raising questions about the relationship between kinetic energy and radius.
  • There is a suggestion that the relationship might be expressed as radius = velocity/ψ, where ψ is the angular frequency, although this is not universally accepted.
  • One participant challenges the clarity of the initial question and requests a rephrasing for better understanding.
  • Another participant corrects a previous claim about the source of information regarding the relationship, indicating that it was not from the Wikipedia page but from another link.
  • Concerns are raised about whether an increase in velocity would lead to a constant radius due to compensatory changes in angular frequency.

Areas of Agreement / Disagreement

Participants express uncertainty regarding the relationship between velocity and radius, with no consensus reached on the mechanisms at play or the validity of the proposed equations.

Contextual Notes

Participants reference various sources for their claims, but there is a lack of clarity on the definitions and assumptions underlying the equations discussed, particularly regarding the role of angular frequency in relation to radius and velocity.

smart_worker
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cyclotron -- relationship between velocity and radius

in a cyclotron the radius of the path of electron increases.but how if the velocity of the electron is accelerated its kinetic energy should only increase but why is it's radius increasing despite the fact that it's moving to the dee with same polarity?
there is no relation between radius(scalar) and velocity(vector)
 
Last edited:
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smart_worker said:
in a cyclotron the radius of the path of electron increases.but how if the velocity of the electron is accelerated its kinetic energy should only increase but why is it's radius increasing despite the fact that it's moving to the dee with same polarity?
there is no relation between radius(scalar) and velocity(vector)

Your question is not very clear. Can you please try re-phrasing it to make your question more clear? Perhaps you can refer to the equations on this introductory page to show us what you are confused about:

http://en.wikipedia.org/wiki/Cyclotron

:smile:
 
berkeman said:

the radius of the electron is increasing every time its accelerates towards the dee.few websites says its due to the velocity.
my question how can the velocity cause such increment.

is it due to radius = velocity/ψ where ψ is the angular frequency?
 
Last edited:
smart_worker said:
the radius of the electron is increasing every time its accelerates towards the dee. wiki page says its due to the velocity.
my question how can the velocity cause such increment.

is it due to radius = velocity/ψ where ψ is the angular frequency?

Where does the wiki page say that? (the part of your quote that I've bolded)
 
berkeman said:
Where does the wiki page say that? (the part of your quote that I've bolded)


let me correct myself it is not the wiki page stating that i found that in this link

http://answers.yahoo.com/question/index?qid=20100809052249AA5mU9T

but if it is due to radius = velocity/ψ where ψ is the angular frequency,

then on increasing velocity kinetic energy increases resulting in increase in ψ,so increase in velocity would be compensated by increase in ψ so radius remain constant resulting in a circular path
 
so why is the radius not a constant as it keeps increasing uniformly?
 

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