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Accelerator physics summary & report on UCLC + LCRD R&D ...

Accelerator physics summary & report on UCLC + LCRD R&D ...

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<strong>UCLC</strong> 2.7: Fast Synchrotr<strong>on</strong> Radiati<strong>on</strong> Imaging System forBeam Size M<strong>on</strong>itoring(Jim Alexander and Jesse Ernst)<strong>UCLC</strong> 2.7: exploring possible parameters, c<strong>on</strong>figurati<strong>on</strong>. discussi<strong>on</strong>s <strong>on</strong>ly so far.Design for a Synchrotr<strong>on</strong> Radiati<strong>on</strong> Camera for Beamsize MeasurementBasic c<strong>on</strong>cept:1. Refocus SR in the damping rings to make a projected image of the passing bunch.2. Diffracti<strong>on</strong> limit <strong>on</strong> source size forces us into the x-ray regimeArc dipoleGoals:1. definite: Measure σxandσy2. possible: Single-bunch resoluti<strong>on</strong>3. optimistic: Intrabunch measurement (i.e. z)• D<strong>on</strong>'t yet know if this will be possible.• Still working <strong>on</strong> ideas for this.Status:Have started simple simulati<strong>on</strong>s for studyingoptics and detector choices:1. Optics• point-to-point with sufficient magnificati<strong>on</strong>• Z<strong>on</strong>e plates are <strong>on</strong>e candidate2. Detecti<strong>on</strong>• small pixel array is <strong>on</strong>e candidatem<strong>on</strong>ochromatorλRelevant timestesla nlccycle 57us 743nsinterbunch 20nsbunchlength 20pspoint-to-point optics detector1.4ns13ps43

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