...
- Photon runs
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2 cerenkov
1 large plastic (1cm thick) for rate monitoring
2 finger counters (2mm thickness, overlap of 1x1cm) for triggering
1 large plastic (1cm thick) with a 24mm diameter hole centered on the
beam for vetoing background
2 XY silicon layers before the magnet
1 magnet
2 XY silicon layers after the magnet
1 plastic (1cm thick) after the last silicon for triggering*
- Photon runs
- Comment: we might deplete the 2nd cerenkov to reduce X0 if we realize that the photon trigger is efficient
- Electron runs
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2 2 cerenkov
1 1 large plastic (1cm thick) for rate monitoring
2 2 finger counters (2mm thickness, overlap of 1x1cm) for triggering
1 1 large plastic (1cm thick) with a 24mm diameter hole centered on the
beam beam for vetoing background
1 1 XY silicon layers before the magnet
1 1 magnet OFF
- Electron runs
...
- comment: we might need a trigger scintillator in coincidence with the
...
- fingers just before the CU
...
- Positron
...
- runs
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2 cerenkov
1 large plastic (1cm thick) for rate monitoring
2 finger counters (2mm thickness, overlap of 1x1cm) for triggering
1 large plastic (1cm thick) with a 24mm diameter hole centered on the
beam for vetoing background
1 XY silicon layers before the magnet
1 magnet ON
1 EM CAL (40cm NaI) to veto gammas
1 plastic after the annihilator before the CU to veto electron/positron Proton Runs*
Proton runs
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2 cerenkov
1 large plastic (1cm thick) for rate monitoring
2 finger counters (2mm thickness, overlap of 1x1cm) for triggering
1 large plastic (1cm thick) with a 24mm diameter hole centered on the
beam for vetoing background
1 XY silicon layers before the magnet
1 magnet OFF
...