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Johan, Peter, David and Danni

LHCb and AD. Johan, Peter, David and Danni. LHCb. Things we want to do. Ideas for the exhibitions - simple hands-on experiments - maybe experiments for classes in the teachers lab Teaching outline - pre, during and post visits. AD (Antimatter Factory). Things we want to do.

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Johan, Peter, David and Danni

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  1. LHCb and AD Johan, Peter, David and Danni

  2. LHCb Things we want to do • Ideas for the exhibitions - simple hands-on experiments - maybe experiments for classes in the teachers lab • Teaching outline - pre, during and post visits

  3. AD (Antimatter Factory) Things we want to do • Teaching outline - pre, during and post visits • Ideas for the guided tour - simple hands-on experiments and demos - ideas of what to show (and what not to) - new posters Quadrupole

  4. Pre-visit (ideas) – LHCb and AD • Text for the teacher - a not too complicated text for the teacher to get some background info (not too simple either) • A ppt-’suggestion’ - a pre-prepared ppt in a editable format so the teacher easily can add and subtract pictures, text etc. to make the presentation suited for the specific class • A web based resource place • - with the best pictures, animations and links

  5. Pre-visit (ideas) – LHCb and AD • - questions and problems • - hand outs to the students(conceptual and problem solving) – editible format Neutralino

  6. LHCb - outline • Before visit • - articles only for • the teacher • - introduction to • the standard model and the LHC (ppt, animations and games) • - Antimatter and the role of the LHCb (text and videos) • - Introduction to the LHCb (text, virtual tour) • - Studying the sub- • detectors

  7. LHCb - outline The Velo: Calculating the time of flight for the b-quark knowing its lifetime. Reconstruct paths of secondary particles to find a common production point. The Rich: Calculating the velocity using simple trigonometry. Find circles that fits the measurements and then find the diameter of circles to get the velocity.

  8. LHCb - outline The magnets: The force on a charged particle in a magnetic field. Drawing the curved trajectory from the straight line trajectory before and after the magnet to find the radius of the trajectory in the magnetic field. This can be used to find the numeric value of the particles momentum. That’s a greatidea! Cheers mate!

  9. LHCb - outline The calorimeters: Learning the principle and maybe calculate things related to bremstrahlung and also to the collection of the photons by the optical fibers (e.g. internal reflection). The muon system: Learning the principles about gas filled chambers by comparing it to the GM-counter and maybe calculating the position from the drift velocity and the time. Several simple calculation can give the trajectory. Anti-hydrogen

  10. The exhibition (ideas) – LHCb • What is the story • - Whatareyoudoing • - Whyareyoudoing it • Symmetry in physics • - Energy and symmetry, example: two billard balls central collision • - Momentum and symmetry, example: two billard ballsoffaxiscollision • - Angular momentum, example: the balarina

  11. The exhibition (ideas) – LHCb • Symmetryviolation • - Missing energy in beta-decay =>Discovery of the neutrino • Discoveries in the earlydays – cosmicrays • Discoveries in detectors • WhyLHCb? • - Investigate the symmetryviolation of the beautyquark • - Whichdecaysarewelooking for? • Whatareweexpecting to find?

  12. The exhibition (ideas) – LHCb • The large detector model • - Connecteach part (velo,…) with a red wire • to a short explanationon the inside of the • window to the box, or to a buttonthatcontrol • a touch sensitive presentation screen, where • a web couldcostomize the explanation • dependingon the neededlevel of detail. • - Use a picture of the model as frame of reference in the followingdetaileddescription of the detector

  13. The exhibition (ideas) – LHCb • The ’real life’ detector elements • - Nice thatyoucan se what the elements look likescale 1:1 • - Place a littlepicture of the model highlightingwhere the element (velo,…) is located • - Give a short explanation of how it works, useeverydayexampleslike, the veloworkslike a ccdcamera (littledrawing of each), the calorimeterthermal solar panel • The measurement data • - Whatarephysisistsdoing, the dataprocessing, an examplewhereyoucansee the tracks, steel from Atlas Z-boson

  14. The exhibition (demo-ideas) – LHCb • Calorimeter analog Slit Filters Lamp Diffraction Grating Students use grating to separate frequencies of light. Filters are used to discriminate relative energies by eye or light meter.

  15. The exhibition (demo-ideas) – LHCb • Prism-dispersion-analogy • - same principle as the bending of the beam by the magnets • Bending e-beam with magnet • - maybe using an old monitor that loops a film showing a dot in the middle of the screen (you can put a coord. system on the screen and take measurements) • Light-guiding with mirrors • - to catch circular pattern from the CR

  16. The exhibition (demo-ideas) – LHCb • Tracker analog Magnets Marble Ramp Students can compare path of marbles with different masses and or starting heights.

  17. The exhibition (ideas) – LHCb • ‘The LHCb-collaboration’ • - a class gets divided into groups. As a whole the class is studying a collision-event in ths LHCb, but each group studies only what happens in a seperate part (layer) of the detector. Ind the end they piece together what happened form the moment of collision untill the end of the detector • …this can probably also be done before or after a visit to the LHCb… CP-violation

  18. AD - outline Antimatter site Angels & Demons site • Good content for general public • Nice layout • Good videos • More detail, higher level • Information on the experiments • Pictures, diagrams etc. • Not updated Experiment sites • Great stuff on traps, detectors etc. • Pictures diagrams etc. • Not updated

  19. AD - outline • Examples

  20. AD - outline • Suggestions - Add a section ”For teachers” - More technical details - Powerpoint to be used in class - Prepared (short) exercises and where they fit in the physics that are being taught

  21. AD - outline • Before visit - General antimatter (pair-production, anihilation) - Special relativity (energy needed to create antiproton, speed of particle) - Electromagnetic fields (acceleration, right hand rule) - Thermal motion of particles (temperature, velocity, energy) - Preparing questions for researchers

  22. AD - outline • After visit - Projects. For example: Historical perspective Misconceptions / myths in media Antimatter regions in the Universe Other antimatter facilities? Bubble chamber

  23. AD – medical aspect - outline • Before visit • - Theory: • Gamma rays, • Interaction with matter, the exponential decrease of energy for gamma, • Particles • The body is close to empty: • Particle – particle interaction • Linear Energy Transfer defined by dE/dx. • Stopping power and range • Understand why particles are better than x-ray in killing tumors and limiting damage to sensitive organs and tissue • Historical development, from tubes to Co-60 hospital equipment, Issues solved.

  24. AD – medical aspect - outline • Exercises: • simple calculation of dose • calculation of dose delivered to tumor and to critical organ from x-ray pictures, depth/energy/dose- graphs, • Planning a treatment, simple example showing key principles • Experiment:Gamma through water

  25. AD – medical aspect - outline • During • Theory: • What are the problems and questions that CERN-ACE tries to solve • OH-presentation (’15 h) • Discussion and exercise: • Find critical points in the experimental set up • simple calculations • Visit to Bern, practical particle therapy - optional • Experiments: • How is the experiment set-up – (poster and handout (A3 folded to 4*A4)) • What are the findings until now – (poster and handout) • Unanswered questions • Plan going foreward

  26. AD – medical aspect - outline • After • Broaden the scope to include the plans for development of particle therapy • What is the status of cancer treatment in my country. • What are the plans for development of the therapy possibilities. • What is the attitude among patients, doctors, decision makers and organisations. Higgs

  27. The guided tour (ideas) - AD • Monitors from the control room • - in the control room there is monitor showing the protons hitting the copper target every 2. minute…this should be displayed for visitors • - model or screen showing the process (production of the anti-p -> slow down in the ring -> entering the various experimental sites) • - map of the facility • The hands-on activities an demos • - marble-potential, polystyrene ball trap (demo) • - real equipment (quadropoles, RF-cavities,…)

  28. The guided tour (ideas) - AD • New AD Placement Monitors with Animation and Target Camera Antimatter Pannels Deceleration Ring Pannel

  29. The guided tour (ideas) - AD • New AD placement II Angels & Deamons Real Accelerator Components

  30. Other AD Changes • Other AD changes • - Add images or projection of accelerator on part of enclosure wall. (CDF) experiment hall. • - Adjust trafic patern or timing around dewar change out. • - Add single pannel explination for each experiment. beauty-quark

  31. The answer… Wino • …to the question: • “Should we [Mick Storr] keep sending people [visitors] to Point 8 [LHCb]?” • And the answer is: • Yes, if you can make room at point 8 for the demos (a least twice the size it is now) • No, if you can find room at CERN for the LHCb exhibition + the demos

  32. AD - outline • Before visit If you want to prepare a visit with a class to AD the teacher wants to know • What are they looking for? • How does the machine work? • Where can you use AD as an example in high school physics? • Theory What topics is it useful to cover before coming to AD? How do you use AD as an example when teaching those topics? Note: These are topics that are generally taught in high school physics. The idea is to use AD as an example while covering this in class.

  33. AD - outline • General antimatter Being familiar with what antimatter is. Antiproton, positron, pair-production, annihilation, etc. • Special relativity- Being able to use E = mc2 to calculate energy required to produce antiproton.- Calculate the speed of a particle with certain energy (relativistic). • Electromagnetic fields- Doing basic calculation of acceleration and deceleration of charged particles in electric and magnetic fields- Right hand rule

  34. AD - outline • Thermal motion of particles- Doing basic calculation of the thermal velocities of particles of a given temperature- Understanding the relation between temperature, kinetic energy, velocity • Vacuum pumps ExercisesI have only made on example of an exercise. The idea is to show where the level should be. It is also likely that not a lot of time can be spent in class going into detail. Therefore the exercises should be fairly short. It would be nice if the details (energies, field strengths etc.) could be somewhat accurate.

  35. AD - outline • Preparing questions for guide/researchers. • For example:- What is the latest findings? • During • TheoryThe pupils could be given the task of finding the answers to a few questions about the ADFor example:- In what ways are they trying to compare hydrogen to antihydrogen?- What are the problems with storing antihydrogen?- Simple calculations as the one given above. Experiments- Finding answers to unanswered questions

  36. AD - outline • After • There could be projects for groups of pupils where they could dig a little deeper into antimatter research. For example:- Historical perspective.- Other places that are doing antimatter research.- Could there be regions of antimatter in the universe? How do we look for it?Alpha Magnetic Spectrometer- Misconceptions about antimatter. Can it be used as energy source / bombs / interstellar travel?- CP-violation

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