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General notes:

  • For all scans: add all scalar lists to the dataset

Initial e-beam parameters

  • waist at PIC_CENT
  • beta function: 0.5m

General preparation

Recover Laser on MO_MAG

  • Align laser to tunnel
  • Move RP attenuator out, ND filters in
  • Recover M1/M2 alignment using FrontView
  • Verify that laser is back on MO
  • First focal scan to verify laser quality

Recover EOS

  • Prepare EOS: first polarizer: full transmission; camera/analyzing polarizer: maximum extinction
  • EOS timing scan to find t0 for EOS:

Spatial Alignment: KES

  • Align vertical: 1 micron steps, over 100 micron, 10 per step (1000 shots ~< 2 minutes); record both MO_MAG and GAMMA1
  • Align horizontal:

Timing YAG

  • Find t0 using a) long-range scan b) fine scan (10fs-steps)
  • Move EOS delay stage to see EOS and YAG timing simultaneously
  • long scan (YAG + EOS): 5ps window around t0, 10fs steps, 5 per step (2500 shots ~< 5 minutes); MO_MAG + EOS
  • fine scan (YAG + EOS): 100fs window around t0, 1fs steps, 25 per step (2500 shots ~< 5 minutes); MO_MAG + EOS
  • jitter scan (YAG + EOS): keep timing at t0, take 2500 shots at the same position; MO_MAG + EOS
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