What is CERN School laboratory microscope CERNs microscope
What is CERN? School laboratory microscope CERN’s “microscope” International laboratory with strongest “microscope” in the world answering questions about:
How we can build such a microscope? We need precision engineering! And a cooperation of thousands of scientists and engineers and most importantly:
What is Precision? Relative term dependent on dimensions.
à Precision optics: à Camera vs European extremely large telescope Rrelative precisions: 1µm/0. 07 m=1. 4 x 10^-5 (camera) VS 15 nm/39. 8 m = 3. 76 x 10^-10 (camera vs telescope like 1 km VS 1 mm accuracy)
à Precision electronics: à 1 st transistor (1947) vs nowadays transistors 1 transistor in 1947 The Philosophy of precision engineering: “The ultimate limit of precision in future will be of the size molecules/atom’s size’s (relativistic uncertainties/Brownian motions) more then 1 000 000 transistors (in one chip)
Watchmakers connection to precision engineering examples from history: - Fuse - Balance wheel (dynamic balancing) F=k. x, F varies as x varies with spring unwinds.
Element that gives precision example/mockups: Interchangeable manufacturing, tolerance for precision assembly Create 1 big (30, 40 cm Radius) clock plastic mechanism to be assembled by kids (right size part at right location to sucseed)
Precision engineering in CLIC artist impression courtesy of CERN 48. 3 km straight line assembly of 2 linac’s “particle guns” shooting at each other Gun schematic courtesy of google 5. 56 mm diameter Beams are ~10 nm diameter equivalent CLIC artist impression beams colliding courtesy of CERN 8
→ Sources of troubles: - Operator ( bad usage) Design: - geometry - kinematic Environment → Temperature → Vibrations → pressure
Examples of precision engineering World's Roundest Object (possibly new kg definition) If the earth has the same flatness -> highest mountain would be 14 m high
Examples of uses of precision engineering
Beam alignment - mock-up with laser pointers
Tolerances - mock-up with holes and pins
- Slides: 14
