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magnets [2013/10/17 21:17] pereira |
magnets [2013/10/17 21:24] pereira |
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===== Spectrograph Sextupole ===== | ===== Spectrograph Sextupole ===== | ||
- | The only high-order magnet included in the S800 is a sextupole coil installed around the bore tube of Q2. The purpose of this element is to correct the broadening of the beam at the focal plane due to the dominant (x|2) aberration. This defines a narrower trajectory of the beam, allowing the use of a beam blocker at the focal plane to block the unreacted beam when its magnetic rigidity is close to the tuned setting. | + | The only high-order magnet included in the S800 is a sextupole coil((Ref. to Thesis sextupole)) |