Table of Contents

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

Target ladder control restart

if target ladder is not moving, restart the target ladder control:

$ ssh root@control5
$ /etc/init.d/mezzofe restart
$ exit

List of targets and commands:

Target command
empty go_Empty
Pb 208 go_Pb208_50mu
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_C12
holy carbon go_holyCarbon

Installed targets (19.09.2024)

From top to bottom:

Target thickness [mm] radiation length
empty -
Pb 208 (since April '25) 0.05 ~1%
Pb nat 0.124 2.2%
Plastic (Lupolen) 2.0 0.4%
Si28 1.0 1.0%
Pb nat 0.2 3.6%
luminescent screen -
Ta181 0.049 1.2%
C12 1.03 0.5%
holy carbon 0.4 0.2%