MAXPEEM Documentation
For general users
Overview of the ring, beamline, spectro-microscopy endstation
Ring
Beamline
Spectro-microscopy endstation
Further reading
Pre-beamtime checklist
Once the beamtime has been scheduled in DUO
Roughly three weeks before the beamtime
Roughly one week before the beamtime
Description of the sample holder/cartridge
User team
Accommodation
Experimental plan
Transportation or shipping of samples/tools/supplies/etc.
Post-beamtime checklist
Near the end of the beamtime
Shortly after the beamtime has ended
Beamtime hacks
Tips for designing an optimal measurement plan
Tips for operating the beamline
Toilets and water/tea/coffee stations
WiFi
Food options
Resting and exercise rooms
Tools and supplies available in the MAXPEEM prep lab
Beamtime Problem-Solving Guide
Get familiar with setup
Before measurements
Alignments and setup-relates
Beamline (x-ray)
Measurements
Change setup from LEEM to another mode
Operating the loadlock / fast entry chamber
Changing sample in main chamber
Sample insertion from air
Venting
Pumping down after sample insertion
Schematic Layout of the UHV System
Vacuum suitcase connected to the load-lock
Vacuum suitcase connected to the prep chamber
How to exchange the sample
Operating the prep chamber
Sputtering with argon
Annealing/Degassing the sample in the prep chamber
In-glovebox crystal cleaving, and air-free transfer to the microscope
In-vacuum post-cleaving of the crystal
Operating the microscope
Modes
XPEEM
Micro-XPS (Dispersive mode) measurement
LEED Measurement
Micro-ARPES measurement
Detailed alignment with UV-PEEM and LEEM
Prepare the setup for high voltage
UV-PEEM alignment
Prepare the setup for UV-PEEM
Alignment of intermediate column
Alignment of imaging column
Alignment in energy analyzer and projection system
LEEM alignment
Prepare the setup for LEEM
Align Electron Gun Incidence Perpendicular to Sample
Alignment of intermediate column
Alignment after decreasing FoV
Slit and apertures
Camera operating
Sample cooling and heating
Cooling
Cooling without magnetic field (Needs to be updated)
Annealing in chambers
Heating in Preparation chamber
Heating in Main chamber
Pyrometers
Gauges
Interlocks
When HV switches off due to an arc
Data access and acquisition
Getting your data
Copying data directly from the network drive
SFTP
Globus Connect
To-do before measurement
User-related information (type in before measurements)
Storage location of data (check before starting the sequence)
Gold mesh related info (02/04/2025)
Active measurement Group: elmitec_aem (default)
Beamline alignment
Control panel (MaxPEEM energy)
Open valves in front end
U-view software interface with frequently used function
Continuous quick acquisition
ยต-XPS (DP mode)
XPEEM (scan start voltage)
XAS
XMCD-/XMLD-PEEM
Collect individual image for XMCD (circular left, circular right)
Collect individual image for XMLD (linear horizontal, linear vertical)
Scangui
Sequencers
Set up Macroexecutor
Scripts (Might be updated)
Ipython
Naming data files
Examples for mapping ranges
XAS measurement by scanning beamline energy
Data analysis
Igor Pro (athina package)
ImageJ
Background image substraction with ImageJ
Drift correction with ImageJ
Plotting LEED with ImageJ
Calculate XMCD with ImageJ
Python with Jupyterhub
Troubleshooting
Beamline software gets stuck
Scangui crashes
Equipment manuals for users
Microscope hardware and software
Manual_20241125:
For beamline staff
Equipment manuals and documentation for staff
Surface prep
Pumps, valves, gauges
Prep chambers
Bakeout equipment
Beamline reports and papers
Updating MAXPEEM Documentation
What is Git and why do we need to use it?
Working locally
Initial setup on a Windows PC
MAX IV Gitlab
pixi (option 1)
docker (option 2)
DEVPEEM
How to local contact at MAXPEEM
Useful links
Responsibilities of the local contact:
Review the proposal
Make initial contact
Request VPN access
Configure their data directory on the network drive
Final check-in
Brief the beamline team
Coordinate removal of their samples and general cleanup
Debrief the team
Remote access (for staff)
Zoom
Syncing data with rsync (linux/mac)
Mounting remote drives with sshfs (linux)
Graphical clients
Baking the vacuum chambers at MAXPEEM
Procedure for baking the main chamber
Degassing
Notes
Microscope maintenance
Oxygen cleaning of the microscope
MAXPEEM Documentation
Index
Index