- Rule of thumb: as low as you can see the beam
- Align FEL through slits and on beamline YAGs:
- Focused beam
- DG1: 0.1(16keV) - 1 (10keV)
- DG2: 1E-4 (16keV) to 1E-2 (10keV)
- IP YAG: 1E-4 (16keV) to 1E-3 (10keV)
- SCC YAG: 1E-3 (16keV) to 1E-2 (10keV)
- Unfocused beam
- DG1: 0.1(16keV) - 1 (10keV)
- DG2: 1E-4 (16keV) to 1E-2 (10keV)
- IP YAG: can go up to 100%
- SCC YAG: can go up to 100%
- Find t0 on TT
- Coarse timing on diode: 1E-8 to 1E-6
- Fine timing on TT clear YAG: 100%
- TT SiN: 100%
- Find t0 at IP
- Coarse timing on diode: 1E-8 to 1E-6
- Fine timing on IP clear YAG: 100%
- Align gas cell: starting from 1E-5, gradually increase when the alignment gets better, eventually need to be able to go with full power (transmission 1, all SATT OUT)
Overview
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