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1. CSPAD is in danger of being sliced in half by the SC1:VGC02 gate valve. This gate valve will close if there is an MPS trip. To prevent this one must pin the gate valve.
2. Hitting a gate valve with a focused beam, i.e. SC1:VGC-02 (which is also why it can trip MPS).
3. Make sure nothing is in the beam path that could produce a strong scattering reflection onto the CSPAD, such as a jet nozzle. Thin YAG screens are okay, given suitable attenuation (noted later).
4. Take care that the sample manipulator vertical (Y) step is small and that you have tested the polarity of motion before letting the beam into SC1, as this can lead to dangerous reflections (see point #3).

Step-by-step guide

Prior to starting. Beam is coming in 15 minutes.

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1. If MEC was running, you will likely need to move M3H, aka M2H XRT, out. The out position is 18.5 (at least 18.1) on the X-gantry.
2. Once MEC mirror is out, you're free to open the HFX DG2 shutter if you've satisfied all of the notifications awr raised.
3. Open the pulse picker.
4. Insert the pop in monitor (PIM) YAG for DG1 (by moving the motor to 0) and look at the python view. You should hopefully see a hint of beam. If yes, we proceed. If no, consult the debugging steps below.
5. Use M2H FEE mirror (from the OMS panel opened earlier) to steer the beam left and right. Steps of 0.5 urad is big, 0.1 urad is small. Left is +, Right is -.
   1. If the beam vertical has to be changed, then we need to call ACR and request repointing. 20 um is a small ~1/4 screen move. 50 um is a larger ~1/2 screen width move.
6. If we are multiplexing with XPP or XCS, then they will want to insert their diamond window to pick off a portion of the beam. This will add wrinkles to the beam in your DG1 view.
   1. Call XCS or XPP and get them to reposition the diamond window if wrinkles are not pushed to the borders of your DG1 view. You won't get rid of them, but you can move them to the sides.
7. Once satisfied, screen grab the DG1 view and note the attenuation in the comment.
8. Hit F12 to close the pulse picker.
9. Remove the PIM Yag for DG1. Insert the PIM Yag for DG2 (after KB mirror) and navigate python viewer to CXIDG2Yag1
10. Set CXI attenuation to 1E-3, then open pulse picker. You should see beam on DG2. That is all we need to do (confirm).
11. Hit F12 to close the pulse picker.
12. Remove DG2 PIM YAG.
13. Switch to the inline view of the jet (probably a DAQ camera, Opal variety)
14. insert the "Dangly D", a diode called SC1 LED stick.
15. Manipulate the stick Z (and possibly X/Y) until the crosshairs overlap the YAG.
16. Set CXI attenuation to 1E-3 (should already be there) and Open the pulse picker.
17. hopefully you will see the beam on the YAG.
    1. Focus on the YAG using fine Z positioning of the stick. If necessary you can use coarse positioning.
    2. Take a screen shot of the YAG, noting the attenuation.

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