Motors at the ID 27 beamline
Sample positioning
- horizontal, perpendicular to beam: ceny
- horizontal, parallel to beam: cenx
- vertical: saz
- rotation: mth
Sample positioning, on laser heating stage
- Graphical interface with a different cenx, ceny, saz
Laser heating
- 2 objectives: 1 (side of the synchrotron), 2 (side of the detector)
- Focus: obj1, obj2
- Horizontal: hobj1, hobj2
- Vertical: vobj1, vobj2
Laser focus
- lens1, lens2
- should be at 0 for best focusing
- move to positive to defocus behind the sample, and not in the diamond
Pinhole
- First pinhole: clh, clv
- Second pinhole: clh2 clv2
Beamline macros
Motor movements and scans
- Absolute move: umv
- Relative move: umvr
- Absolute scan: ascan
- Relative scan: dscan
- tw: tweak a motor
- tw2: tweak 2 motors
Align cell
- cellalign: scan in horizontal and vertical direction and go to the center (automatic, motors will move)
- center: align cell on rotation axis, move in X only (you can refuse)
- centerxy: align cell on rotation axis, move in X and Y (you can refuse)
Switch mode, collect data:
- scanon: get into scanning mode
- scanoff: get into data collection mode
- collect: collect data
Laser heating
Look at the sample
- look1, look2: regular look at the sample from side 1 or 2
- look1y, look2y: look with minimum laser filter
- look1f, look2f: look with more laser filter
- diode 9 on, diode 9 off: switch between cameras
Look at the beam
- look1, diode 9 on, xrayon
- when you're done: xrayoff
Measure temperature
- temp1, temp2, then measure
- Filters: f0, f1, f2, .. to avoid saturating the detector
- Select the proper system response file. S1_F0_9on for side 1, filter 0, diode 9 on, etc
Lasers
- motors are yag1 and yag2, 10W minimum for each
- yag10 puts both lasers at 10 W
- yag0 puts both lasers at 0
- otherwise, use umv, tw, or tw2
- to move yag1 to 10: umv yag1 10
- to move both yag1 and yag2 to 10: umv yag1 10 yag2 10
- to tweak yag1: tw yag1 0.1
- to tweak both yag1 and yag2: tw2 yag1 yag2 0.1 0.1 Careful: the command is tw2, not tw, motors and positions are inverted compared to a umv command