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beamtimes:2024:target_control

MAMI needs optimization

  1. Beam off → ELOG entry “beam off, MAMI optimization, maybe reason”
  2. Change target to “Empty”
  3. Now MAMI can start the optimization → call MAMI
  4. when the optimization is finished, normally <1h (call from MAMI): check beam position
    1. change target to luminescent screen (Al203)
    2. turn on target camera
    3. turn on beam slowly (MAMI) until you see a white spot
    4. ask MAMI to center the beam
    5. take a picture
    6. turn beam off
  5. now you can move to the desired target
  6. turn beam on with the desired current → ELOG entry “beam on, target XY, current XY”

Target control

Change target

  1. beam off
  2. move target
  3. beam on with desired current → ELOG entry

Target camera

The app for the target camera is on the PC on front of the racks (a1analyse).
The camera should only be turned on when the beam is off or to look at the beam position on the luminescent screen (Al203).
A blue window is open (“MPlayer”). Click on it and press “c” to turn the camera on or off.
When the beam is positioned on the luminescent screen take a photo: press “p”; this automatically generates an ELOG entry in the A1 ELOG (open on the same computer).

Move Target

  • beam off
  • go to computer control1
  • find a terminal “mezzo”
  • move target with “go_target”
  • check target position with “where_target”
  • for optimization in A1 hall: empty target

List of targets and commands:

Target command
empty go_Empty
Pb nat (124µm) go_Pb124mu
Plastic (Lupolen) go_CH2
Si28 go_Si28
Pb nat (200µm) go_Pb
luminescent screen go_Al203
Ta181 go_Ta181
C12 go_C40
holy carbon go_holyCarbon
beamtimes/2024/target_control.txt · Last modified: 2024/10/23 17:50 by himuser

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