Particle Focusing using EM fields

[AdrianHudson]

Good day all!

I have a question that has been in my head bouncing around for a while and I figured the best resource would be here as I can't find anymore related information (Or I am just looking in the incorrect spot). My apologies if this is in the wrong section I wasn't too sure where to post this.

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Question: Say you have a particle in non-specific point(Unfixed)? - for this example it is point A - (You can find it in the attached image I drew up)

If particle A is lying in a point between 4 Magnets (This value is just arbitrary for demonstration purposes) :
How would one go about creating a magnetic field of some value to confine a particle into a space fixated in between the magnets.

Main areas of discussion --

Creation of magnetic field opposite in charge to particle A -- Assuming its a positively charged ion

Confining a particle within a certain space -- creating magnetic fields that would't allow a particle to move anywhere but within this "eye" so to speak with the magnetic field acting as "barriers".
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My attempts at finding an answer have brought me to resources that weren't always so helpful whether it be my lack of my knowledge about this specific area of physics or vague answers regarding the interaction between EM fields and Charged Ions (Which is what I am trying to figure out).

For example I am not trying to achieve a particle accelerator but CERN does exactly what I am trying to do by using magnets to bend the path of a particle. I am trying to achieve this but I would like a particle to be located within a confined space located in between all magnets.

 

[DrClaude]

If you want to trap an ion, you will need something like a Penning trap or a Paul trap.

If you want to know more about particle trapping, you can read https://www.nobelprize.org/nobel_prizes/physics/laureates/1989/paul-lecture.pdf.

Good day all!
the interaction between EM fields and Charged Ions (Which is what I am trying to figure out).

That you should find in any textbook on electromagnetism.

 

[AdrianHudson]

If you want to trap an ion, you will need something like a Penning trap or a Paul trap.

If you want to know more about particle trapping, you can read https://www.nobelprize.org/nobel_prizes/physics/laureates/1989/paul-lecture.pdf.That you should find in any textbook on electromagnetism.

Do you have any recommended readings? Textbooks would be best, thanks for you quick reply.

*edit, forgot to mention thank you for the penning trap link. Thats perfect!*