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When I see a new accelerator in real life or on a picture, I always find it interesting to see how many thing I can recognize. In that way, I can also get a small first idea of how the accelerator is working.
Here is a picture, I have taken of LEIR at CERN Help me to be able to recognize even more stuff, than I can now(I will post a few answers myself) Suggested answer form:
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It's difficult to tell what is being asked here. This question is ambiguous, vague, incomplete, overly broad, or rhetorical and cannot be reasonably answered in its current form. For help clarifying this question so that it can be reopened, see the FAQ.
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Quadrupole magnet
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Sextupole magnet
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Ion pump
Ion pumps are used to pump away rest gas in beam tubes at very low pressure. http://en.wikipedia.org/wiki/Ion_pump_(physics) |
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Electron cooler
Electron coolers are used to cool beams of heavier particles. http://en.wikipedia.org/wiki/Electron_cooling |
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Dipole magnet
Look at the brown blocks at the lower left of the picture in the question. Dipole magnets are used for bending the trajectory of the particles. http://en.wikipedia.org/wiki/Dipole_magnet |
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Quadrupole magnets are mostly used for beam focusing.
Sextupole magnets are mainly used to correct for 
