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What is CERN? International laboratory with strongest “microscope” in the world answering questions about: School laboratory microscope CERN’s “microscope”

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Presentation on theme: "What is CERN? International laboratory with strongest “microscope” in the world answering questions about: School laboratory microscope CERN’s “microscope”"— Presentation transcript:

1 What is CERN? International laboratory with strongest “microscope” in the world answering questions about: School laboratory microscope CERN’s “microscope”

2 How we can build such a microscope? We need precision engineering! And a cooperation of thousands of scientists and engineers and most importantly:

3 What is Precision? Relative term dependent on dimensions.

4  Precision optics:  Camera vs European extremely large telescope Rrelative precisions: 1µm/0.07m=1.4x10^-5 (camera) VS 15nm/39.8m = 3.76x10^-10 (camera vs telescope like 1km VS 1mm accuracy)

5  Precision electronics:  1 st transistor (1947) vs nowadays transistors 1 transistor 1 transistor in 1947 more then 1 000 000 000 transistors (in one chip) 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)

6 Watchmakers connection to precision engineering examples from history: - Fuse - Balance wheel (dynamic balancing) F=k.x, F varies as x varies with spring unwinds.

7 Element that gives precision example/mockups: Interchangeable manufacturing, tolerance for precision assembly Create 1 big (30,40cm Radius) clock plastic mechanism to be assembled by kids (right size part at right location to sucseed)

8 Precision engineering in CLIC 8 5.56mm diameter 48.3 km straight line assembly of 2 linac’s “particle guns” shooting at each other Beams are ~10nm diameter equivalent Gun schematic courtesy of google CLIC artist impression courtesy of CERN CLIC artist impression beams colliding courtesy of CERN

9 →Sources of troubles: - Operator ( bad usage) Design: - geometry - kinematic Environment →Temperature →Vibrations →pressure

10 Examples of precision engineering World's Roundest Object (possibly new kg definition) If the earth has the same flatness -> highest mountain would be 14m high

11 Examples of uses of precision engineering

12 Beam alignment - mock-up with laser pointers

13 Tolerances - mock-up with holes and pins

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