1. Claudia Haagen-Schützenhöfer
Practical Group
Teachers Lab At
CERN
Jana Buresova
Marla Glover
Claudia Haagen-Schützenhöfer
Alexander Krafft

2. Teachers lab at CERN
General concept
Demonstration
Equipment
Cost

3. Where should the lab be?
It should be a fixed installation (room, lab, etc…)
Near Microcosm – First choice
Near the Training Center – second choice
Very near a Equipment Storage area
Near a workshop area

4. Who should us it?
It could become apart of existing teacher programs( HST, workshops, visits, etc…)
Create a program just to use for labs
An extension of programs
A follow-up program to existing programs
Teachers with a class of students
They would need to have passed a CERN training program to run the equipment and know and understand CERN procedures

5. What should the lab look like?
Ideal
Classroom with lab space and terminals
Attached storage area
Attached workshop
workshop
classroom
lab
storage

6. What should the lab look like?
Next best
Classroom with large demonstration area
Presentation Equipment
Storage nearby

7. Look at other particle labs
DESY – workshops for students and teachers in special lab (experiments with radioactivity, vacuum and cosmic rays)
Also demonstrational experiments: Photoeffect, Compton Effect, Röntgen spectrum …

8. Look at the other particle labs
FERMILAB
Lederman Science Center

9. Look at the other particle labs
Fermilab
Educational center for both students and teachers
Workshops for students and pupils with hands-on experiments
Programmes not only about particle physics
Wide offer of different types of visits (1-day to 1-week)

10. Equipment for Teacher’s Lab to show:
Structure of matter and basic properties of elementary particles
Particle acceleration
Particle detection

11. Rutherford Experiment

12. WHAT?
Historic experiment to investigate the structure of matter
Scattering
-spectroscopy
HOW?
A beam of - particles is scattered against gold sheet.
The intensity at different angles hints to structure of atoms.
WHY?
Investigate the internal structure of particles
To understand early methods of determining properties
Scattering (fixed target experiment) is a method to do particle physics (particle production, detection …)

13. Millikan Experiment WHY? Measurement of e/m
Charge is an important particle property

14. Stern-Gerlach Experiment
WHY?
Electron spin and directional quantization are important properties of elementary particles

15. Zeemann Effect
WHY?
Shows basic properties of particles (quantization of energy levels, magnetic moment)
Methodology used in Cosmology

16. Electron spin resonance
WHY?
Alexander will show you later on
You can try it yourself in the coffee-break
By the way: Don’t spill any coffee upon our electron!!!
because ……. it won’t : )

17. Cathode Ray Tube WHY? Electric fields are used for acceleration
Magnetic fields are used for bending beams in accelerators
The change of trajectories due to magnetic fields is one principle of measurement in detectors

18. Thomson’s experiment WHY? Electric fields are used for acceleration
Magnetic fields are used for bending beams in accelerators
The change of trajectories due to magnetic fields is one principle of measurement in detectors

19. Electron beam diffraction
WHY?
The wave-nature of particles plays a role in acceleration
Scattering (fixed target experiment) is one method to do particle physics

20. Superconductivity WHY?
Superconductors are important for the creation of accelerators and detectors

21. Hall Effect
WHY?
Magnetic fields of a certain flux play an important role in many experiments at CERN (acceleration, detection ...)

22. Magnetic Nuclear Resonance
WHY?
Precision measurement of magnetic fields is done by NMR at CERN

23. Photoelectric Effect WHY?
Excitation by collision and emission of photons afterwards is one principle of measurement in detection

24. Muon experiences HOW? Cloud chamber (Workshop or Equipment)
KamioCan (HST 2000)
Experiments done by practical WorkingGroup QUARKNET
WHY?
Usage of cosmic rays for calibration of detectors

25. Frank-Hertz Experiment (Neon)
WHY?
The quantization of energy states in atoms is visualized
Excitation / Scintillation is one principle of measurement in detection

26. Electron Positron Spectroscopy
WHY?
The determination of resting and decay energy of particles is one step in detection
Spectroscopy is an important analytical method

27. Cost Leybold Didactic Swiss-75,000chf Phywe bid-113,000euros
Minus 10% discount-67,000chf
Minus duplicates-59,000chf
Phywe bid-113,000euros
Minus 10% discount
Minus duplicates
Room to negotiate
Other sources of economy???

28. Electron Spin Resonance

29. What? How? Why? Magnus Effect/Magnetic Fields/Rotational mechanics
Resonance/Spin Resonance
How?
The magnetic moments align in the permanent magnetic field.
The perpendicular alternating field creates excitation which results in the electrons absorbing energy then releasing it when it goes back to its ground state.
Why?
This will help students see how electron spin is used in medicine and materials.