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Optics of a two-stage collimation system
We derive the exact specification that a two-stage betatronic collimation insertion must satisfy to cut the halo of a proton beam down to its ultimate limit which is the aperture of the secondary collimators. Our result is a set of correlated phase advances between primary and secondary collimators....
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Lenguaje: | eng |
Publicado: |
1998
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Acceso en línea: | https://dx.doi.org/10.1103/PhysRevSTAB.1.081001 http://cds.cern.ch/record/368725 |
Sumario: | We derive the exact specification that a two-stage betatronic collimation insertion must satisfy to cut the halo of a proton beam down to its ultimate limit which is the aperture of the secondary collimators. Our result is a set of correlated phase advances between primary and secondary collimators. We then determine the number of jaws needed to reach a given level of performance. We also specify the optic of a momentum collimation insertion. |
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