Documentation of procedures¶

The intention of this section is to enable new beamline staff or trainees as quickly as possible to work autonomously at/with the beamline. Non-routine tasks.

ToDo: Create a documentation for changing cameras and optics/magnifications.

Put in filters and observe the beam for the first time. -> adjustment of the beam for the experiment.

alignment too¶

Here should be another reference sample alignment

Tomoalign

after shutdown¶

do search of the optics hutch
are all chillers and other devices turned on (e.g. the chiller of the monochromator), are all symbols in the dashboad green? If everything seems ok click reset to refresh them and see if the shutters can be opened.
open the gauge valves
check with Yazeed if any motors need to be homed, especially if there was a power cut
experimental hutch: CVD Window 2: water flow for cooling should be >= 3.5, below 3 it gives an interlock

Changing cameras¶

Selecting detector, start of IOC, getting initial images¶

FLIR needs to be plugged in PCO needs to be switched on on top, its chiller is in “follow-mode”.

Refining slit settings and detector posotion¶

Potential obstacles¶

could be that wire scanner, diagnostics screen, white beam blocker (WBB), CVD window are “in the beam” and give artefacts

Change radiation and energy settings¶

The beamline energy can be changed using the Energy CLI.

Start the Energy CLI:

cd /home/control/energy/iocBoot/iocEnergy_2BM
python3 -i start_energy.py

Set energy to 20.0 keV (W/B4C stripe):

energy set --energy 20

Set energy to 20.0 keV (Ru/B4C stripe):

energy set --energy 19.99

— maybe list more settings + filtered radiation?

changing detectors¶

Videos + photos

How to switch on the cameras. : plug in power supply or simply switch on

increase distance between sample and detector to e.g. 1m

Det1/Det3 - optique peter:

remove lead box untighten small crews place the camera in a safe place (e.g. a hanging, CLEAN bag) connections

Det3 (poly radiation): connect all five available cables Det3 (mono radiation with objectives): connect Foc1/Rot1

Det2 - Hasselblad:

open black housing (heavy, perhaps use the crane)

changing optics/magnification¶

Videos + photos

cleaning the scintillator¶

Mount proposal folders¶

Warning

The following commands are for the beamline staff only.

Mount proposal ExpData and recon folders on BL-BEATS-WS01:

cd ~
./petra_prop_mounter.sh

Check mount points:

df -h

Unmount proposal folders:

umount /PETRA/SED/BEATS/SEM_6/20235010
umount /PETRA/SED/BEATS/SEM_6_recon/20235010

Mount proposal ExpData and recon folders on Win Data Dispenser and Dragonfly VizServer:

./petra_prop_recon_smb_mounter.sh

Note

For proposals belonging to a different semester the scripts petra_prop_mounter.sh and petra_prop_recon_smb_mounter.sh must be modified.

Endstation alignment¶

Note

The endstation is aligned by the beamline staff at the start of your beamtime. Generally, you don’t need to repeat these operation and you can jump to sample alignment

Endstation pitch
Endstation X-axis
Camera rotation
Detector focus