Run 2c Spectrometer Dipole Chamber Specifications
AWAKE Run 2c – Spectrometer Design Chamber
Participants: Maria-Carmen, Fern, Collette, Nicolas, David, Marlene
Discussion Summary
1. Window Design
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Two window options are planned:
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Reuse an existing ~2 mm thick aluminum window (used in Run 1).
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Design a second window for the high-energy side featuring a transparent ~2-inch diameter window (for OSR) surrounded by steel or another robust material.
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The window should be positioned outside the magnet yoke, especially if it needs to be replaceable.
2. Window Angle
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Final angle does not need to be fixed immediately unless it’s perpendicular, which could lead to integration issues on the high-energy side.
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Initial decision: Use 14 degrees for the first version.
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Action: Joe and David to finalize the optimal angle, considering screen imaging constraints (e.g. 0° is not ideal for installing cameras near the beamline).
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3. Chamber Reinforcements
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Evaluate where reinforcement ribs are needed and whether they can be placed outside the yoke.
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A mechanical simulation is necessary to confirm the structural integrity.
4. Chamber Diameter (Downstream of Plasma)
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Current upstream diameter is 72 mm; inside chamber diameter is 64 mm.
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Action: Marlene to assess whether a wider downstream diameter is feasible and report back to Nicolas.
5. Timeline
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Nicolas will circulate the first draft of the chamber design by early August.