BlochDocs
For general users
The Bloch beamline
Overview
Ring
EPU
M1
Monochromator
M3
Exit slits
M4
Energy resolution
Flux
Spot size
How to run the beamline
Control GUIs
How to launch control GUIs
Beamline control panel (Windows computer)
M1 pitch corrector (Windows computer)
Energy panel (Linux computer)
Optimizing flux
Sample mounting & cleaving
Sample plates at BLOCH
Mounting considerations
Gluing
Physical mounting
Tape cleaving
Top-post cleaving
Fast entry source ports
Calculating length requirements
Getting your data
USB stick
SFTP
MacOS
Windows
Linux/MacOS, command line
Food options
Vending machines
Coffee
Supermarkets
Food trucks
Nearby cafes and restaurants
Delivery
Basler sample cameras
Starting a video stream
Crosshairs
Frame errors
Data analysis
pesto
library (Python / Jupyter)
Igor Pro
Igor macro: DA30 chunkloader
Igor macro: ARPES Analysis
Igor macro: ESpectroscopia
Igor macro: BLOCHFit
SES
A-branch
Loadlock
Pumpdown time
Prep Main
Sample receivers
Sputtering
Heating
Direct current heating
Electron-beam heating
Cooling
Prep Sec
Sample receivers
Moving the manipulator
Sputtering
Heating
Direct current
Resistive
E-beam heating
Quartz crystal thickness monitor
LN2 cooling
Gold deposition
Radial distribution chamber (‘UFO’)
Cold transfers
How to measure
Maximum countrate
Sample camera
Control GUIs
How to launch control GUIs
Manipulator control (Windows computer)
‘Automap’ Windows computer)
Temperature control panel (Windows computer)
Trendplots (Windows computer)
Launcher panel (Linux computer)
Carving panel (Linux computer)
Using SES
Preliminary notes about SES:
Deflector ARPES scans
1D manipulator scans (e.g. Fermi surface maps)
Time dependent scans
Photon energy scans
2D manipulator maps (e.g. X-Y spatial maps)
DA30-L electron analyzer
Deflection mode
Focusing
Analyzer slit selection
Lens modes and restrictions
Fixed vs. scanned/swept acquisition mode
Mesh suppression
Angular resolution
Energy resolution
Carving 6-axis manipulator
Specifications
Transferring samples
Sample biasing
Connections and grounding
Heating and cooling
Temperature calibration and stabilization
Stinger closed cycle cryostat
Overview
Technical details
Alkali deposition
LEED
Recommended settings
Sputtering
Sputter beam characteristics
Sputtering procedure
Pyrometer
VT-XA STM
Specifications
Transferring samples
Cooling/Heating
Tip preparation tool
XY calibration and lattice size measurements
Tunneling spectroscopy
Setup
Minimizing capacitive crosstalk
Parameter values
Acquiring and processing STS
Energy resolution
Examples
B-branch
Phoibos 150 electron analyzer
Deflection mode
Spin detector
Overview
Measurement principle
Angular and energy resolution
Analyzer slit selection
Energy resolution
How to analyze spin data
Preliminaries
Polarization terminology
The spin detector at Bloch
Analysis
Coordinate systems
Example: Au(111)
LEED
Main preparation chamber
‘Prep top’
For beamline staff
Manuals
Troubleshooting
On-call support options
Icepap
Closed loop errors
Overcurrent errors
SES
NEG pumps
Gas lines
Procedure for filling gas lines
1. Attach a regulator to the bottle and gas line
2. Pump the line to low vacuum
3. Pump the line to high vacuum
4. Open the bottle and fill the line
5. Remove the bottle
Mini-mix style bottles
How to local contact
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
Stinger closed cycle cryostat
Manuals and datasheets
Operational procedures
Preliminary comments
Procedure: Starting from scratch
Procedure: Recovering from a blockage when already running
Procedure: Non-urgent shutdown
Procedure: Removing insert before baking
Procedure: Rapid shutdown
Troubleshooting
Homing motors
BlochDocs
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Index
Index