In order to ensure that the beamline in the target area is properly aligned with respect to the beam axis, it is necessary to install a telescope (transit/theodolite) between the last two quadrupole triplets of the analysis line, as well as a “cross hair” plate between the last quadrupole triplet and the target chamber. Although the alignment of the telescope is done by lab staff (e.g. Dave Sanderson), the user is responsible for removing the gate valve D2542 BGV separating the analysis line and the target area. This of course, requires that the lower-dipole section is properly vented. The venting and pumping-down processes are generally done by a instrument scientist.
The venting (and pumping) process is done remotely through CS Studio Phoebus. Its page can be found on the EXP network through FRIB EXP Main → S800 → Vacuum Main (Primary Pages) → Lower Dipoles and is shown below.
Instructions on how to vent/pump-down this section are described below.