Curvature radius question for my muon beam experiment

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SUMMARY

The discussion centers on calculating the relationship between the shift in x-coordinates (Delta x) observed in a particle beam after passing through a dipole magnet and the curvature radii of the beam. The participant identifies that the beam is not monochromatic, indicating a difference in momentum that affects the curvature. The deflection angle θ is expressed as θ = L/R, where L is the length of the magnet, but a direct relation between Delta x and the curvature radius remains unclear. The conversation emphasizes the need for a graduate-level understanding of particle physics to derive the necessary equations.

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  • Basic geometry principles related to circles and tangents
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faca
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Hello, I've a particle beam moving along the z-axis. The beam goes through a dipole magnet. I studied the hit position in a tracker after the magnet and I noticed that there are hits at 2 different x coordinate (the x asix is transverse to the z one). Let's call Delta x the shift between the 2 x points, I need the relation between the Deltax and the 2 curvature radius . Please, can anyone help me?
Thank you
 

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What research have you done on this?
 
Hi vanadium.
Vanadium 50 said:
What research have you done on this?
Hi vanadium I'm studying some data. I noticed the shift, it means the beam isn't monochromatic, so I need to calculate the difference on the momentum. Do you know how to release the shift to the curvature radius?
 
faca said:
Do you know how to release the shift to the curvature radius?

Yes, I do, but as an A-level question you're supposed to have graduate-level understanding. I'm trying to figure out what you know already so I can properly help you.
 
Vanadium 50 said:
Yes, I do, but as an A-level question you're supposed to have graduate-level understanding. I'm trying to figure out what you know already so I can properly help you.
Thank you vanadium. I know that I can express the deflection angle θ=L/R (L is the length of the magnet) but I can't find a relation between the Deltax and the radius. Maybe, you can try to write in the way you think it's better to do and if I don't understand something I will ask you about that.
 
Think of it as a high school geometry problem. You have a circle with two points and a tangent line.
 
I did in that way:

[Note: Enhanced images uploaded by Mentor]

Delta1.jpg

Delta2.jpg
 

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Last edited by a moderator:
If you are trying to say "thank you", you're welcome. If you are trying to say you still need help, you're going to have to put in more effort than posting two pages of unclear scrawl and asking us to figure it out.
 

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