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Author Topic: Particle Accelerators  (Read 3826 times)

Offline darkseid

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Particle Accelerators
« on: 06/12/2005 03:14:23 »
Can a particle be protected from the earth magnetic field in a particle accelerator. If so how is it protected?

The reason I ask, I'm wondering if matter, space, and time can be seperated.


 

Offline neilep

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Re: Particle Accelerators
« Reply #1 on: 06/12/2005 03:54:50 »
Welcome to the site Cliff.

I'm sure you'll get an academic answer here soon but in my limited capacity I would have thought that the earths magnetic field would be so weak compared to the field generated by the accelerator that it would be completely nullified by it.

Lets hope we get a further comment because I want to know now.

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Offline DoctorBeaver

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Re: Particle Accelerators
« Reply #2 on: 06/12/2005 11:10:41 »
quote:
I would have thought that the earths magnetic field would be so weak compared to the field generated by the accelerator that it would be completely nullified by it


I'm inclined to agree (but also waits for a more authoritative reply)
 

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Re: Particle Accelerators
« Reply #3 on: 06/12/2005 13:17:45 »
quote:
Originally posted by DoctorBeaver

quote:
I would have thought that the earths magnetic field would be so weak compared to the field generated by the accelerator that it would be completely nullified by it


I'm inclined to agree (but also waits for a more authoritative reply)



Even if that were not the case (and I can imagine there might be some very sensitive experiments that require very tight control of extraneous sources of magnetism), I would have thought it a fairly straight forward  matter to create a compensatory magnetic field that balances out any influence of the Earth's field (it's not exactly as if there were wild rapid fluctuations in the Earth's field that needed to be compensated for).
 

Offline neilep

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Re: Particle Accelerators
« Reply #4 on: 06/12/2005 16:53:38 »
Agreed.

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Offline Soul Surfer

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Re: Particle Accelerators
« Reply #5 on: 07/12/2005 23:39:57 »
Darksied; As a result of your second statement I am not sure what you mean by "protected" from the earth's magnetic field.  

The standard technique for reducing the effect of the earth's magnetic field on experiments that are sensitive to it, is to set up a pair of coils (called Helmholtz coils) and excite them with a DC current that will produce a field equal and opposite to the earth's magnetic field over a reasonably large volume and thus null out the earth's field over that volume.

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« Last Edit: 07/12/2005 23:45:02 by Soul Surfer »
 

Offline DoctorBeaver

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Re: Particle Accelerators
« Reply #6 on: 08/12/2005 01:15:32 »
*points at Soul Surfer* He knows his stuff
 

Offline darkseid

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Re: Particle Accelerators
« Reply #7 on: 08/12/2005 05:17:27 »
Thanks for the answer guys, now I can sleep better:)

Soul Surfer when I say or mean by protected is "if any laws of physics are being broken in a particle accelerator" such as separation of matter from the earth magnetic field.
 

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Re: Particle Accelerators
« Reply #7 on: 08/12/2005 05:17:27 »

 

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