Instructional Videos SQUID Practicum

Liquid Nitrogen Safety

• Also always wear gloves when handling the probe when it comes out of the liquid nitrogen.
• NEVER touch the probe with your bare hands until there is no more ice forming on it!

Hardware introduction

• An introduction to the MrSQUID hardware

Software introduction

• Starting up the software and configuring it for your round
• Overview of the software programs and how to run them

Cooling the probe down and measuring superconducting IVs

• Your first experiment: measuring IVs while cooling down
• Watch what happens when SQUID becomes superconducting

Temperature dependence

• Measuring the superconducting transition while logging the sensor temperature when warming up

Quantum Interference

• Using flux modulation mode to observe quantum interference

Documenting and analysing your data

Important points from video:

• 4 levels of documentation:
  • Level 0: Use “Plot all my data” to get an overview of the data you’ve taken
  • Level 1: A “Daily summary” notebook for each day you work in the lab in which you describe in words what you did, and show plots of the representative data you took
  • Level 2: Analysis notebooks where you analyze the data in more detail, making your own plots and starting to draw conclusions
  • Level 3: Report plots should all be generated by one notebook, which you also submit with your report
• All files / notebooks / etc should be in the Teams folder
  • Sync to your own hard drive if you want too using one note

End of session and leaving room

• How to leave the setup when you are done

Using Teams and connecting with Remote Desktop

Notes on this video:

• Change with respect to video instructions: submit your reports only via brightspace, not via Teams
• Remote desktop:
  • Computer name: TUD204580
  • Username: TUD204580\localadmin
  • Password: see paper taped onto screen of measurement computer

Link to gallery with all videos:

https://nsweb.tn.tudelft.nl/~gsteele/SQUID_practicum/videos/