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This space is dedicated to the Matter in Extreme Conditions instrument of LCLS. It contains details on the instrument components and their use. The website contains restricted sections for staff-use only. The current organization is the following:

  • Open access: sections 0 to 9
  • Restricted to staff: sections 2.5, 10 and 11

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Matter in Extreme Conditions Instrument Page on slac.stanford.edu

  • Please submit edits here (google docs), using comments or suggestions.

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Below is the group list having maximal access to this page. If you feel you should be included then you can request membership through SLAC IT. Generally this is the MEC ops team including matrixed individuals.

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DescriptionDue dateAssigneeTask appears on
  • Bob Nagler to ensure that instructions are included here by  
29 Feb 2024Bob Nagler4.5. MXI
29 Dec 2023Robert Nicholas EttelbrickLayouts
  • go back half the last step you just did (let's assume you are going negative on the vitara)
 2024.06.26_shift4_egaltier
  • if you see no darkening, it means you passed t0 and you can go back positive again half the step size you did just before
 2024.06.26_shift4_egaltier
  • if you see drkening, you didn't go far enough, so keep going negative until the darkening disappear
 2024.06.26_shift4_egaltier
  • close the iris to fully illuminate the imaging system for the spot size while the GAIA is timed out and the EL is OUT
 2024.06.26_shift4_egaltier
  • move to the 45° Yag crystal extending from the pillar
 2024.06.26_shift4_egaltier
  • send the optical laser then send the X-rays at full beam
 2024.06.26_shift4_egaltier
  • timing should be within 20 ps, so changing the VITARA timing by 1 ns should allow us to see the image turn black. Closing the slits to 400 mic for the X-rays help see the localized change of indesx of reflaction
 2024.06.26_shift4_egaltier
  • once you see a darkening, follow the procedure below to get timed
 2024.06.26_shift4_egaltier
  • once the timing is done within 100 fs, close the slits to 50 mic and confirm spatial overlap with the pin at TCC
 2024.06.26_shift4_egaltier
  • record positions of the VITARA for t0 and positions of the varioous targets to be able to go back quickly to this configuration and check timing
 2024.06.26_shift4_egaltier
  • Fine timing
 2024.06.26_shift4_egaltier
  • with the TSO imaging and the 45° YAG extending from the pillar,
2024.06.26_shift4_egaltier
  • make sure the Si 10 mic fothick foil is inserted (still) in the beamline
 2024.06.26_shift4_egaltier
  • open the slits 2 to 0.4 mm
 2024.06.26_shift4_egaltier
  • set a cross on the edges in the spatial direction, and save a run (spatial calib)
 2024.06.26_shift4_egaltier
  • open the slits 2 to 0.1 mm
 2024.06.26_shift4_egaltier
  • set a cross on the edges in the spatial direction, and save a run (spatial calib)
 2024.06.26_shift4_egaltier
  • extract the mic/px value from this calibration (it is correct in both space and time axis since the objective looks at the yag/Si normal to its surface)
 2024.06.26_shift4_egaltier

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