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Author archive: Barbara Warmbein

Ten Thousand Eyes On New Physics

| 30 March 2006 In a tent in a test hall at DESY in Hamburg, Germany, the hadron calorimeter is learning how to see. This calorimeter - an essential part in all proposed detector designs for the ILC - measures the energy of all those particles that make it through the dense electromagnetic calorimeter. It does this with the help of scintillators, small plastic plates where incoming particles interact, leaving information of their energies, a fibre that changes the photons' wavelengths from ultraviolet to green, and tiny photodetectors that convert the light into an electronic signal. Hadrons interact with layers of dense metal, producing the charged particles whose signal is measured and conclusions can be drawn on the energy and nature of the hadron that swooshed past.
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