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These couplers, built at the French laboratory LAL in Orsay, feed the high frequency into the cavities. Cleanroom: LAL, Orsay. Part of the “Life of a cavity” image series. (Image courtesy of DESY/ILC, photographer: Heiner Müller-Elsner) |
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When all cavities, tanks and pipes have been connected and sealed in the cleanroom, the string is inserted into a cryomodule. Here: CEA, Saclay, France. Part of the “Life of a cavity” image series. (Image courtesy of DESY/ILC, photographer: Heiner Müller-Elsner) |
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The gaseous helium is returned through this pipe. The cavity string is later attached to this construction before it is inserted into the cryomodule. Here: CEA, Saclay, France. Part of the “Life of a cavity” image series. (Image courtesy of DESY/ILC, photographer: Heiner Müller-Elsner) |
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The cavity’s final home: the cryomodule. Eight cavities sit in one module, and depending on the accelerator there may be some hundred or more than a thousand of these cryomodules connected to each other in a row. Here: CEA, Saclay, France. Part of the “Life of a cavity” image series. (Image courtesy of DESY/ILC, photographer: Heiner Müller-Elsner) |
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A schematic layout of the International Linear Collider. (Graphic courtesy of ILC / form one visual communication) |
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A niobium ingot is lowered into the electron beam melting oven at the German company Heraeus. The melting process turns the already pure niobium into the highly purified material needed for cavity production. Part of the “Life of a cavity” image series. (Image courtesy of DESY/ILC, photographer: Heiner Müller-Elsner)
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When liquid niobium drips off the ingot in the electron beam melting oven at Heraeus, all other gases and impurities vanish. Part of the “Life of a cavity” image series. (Image courtesy of DESY/ILC, photographer: Heiner Müller-Elsner)
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Eight cavities in their helium tank and all other necessary equipment are assembled into a cavity string. This requires extreme precision and extreme cleanliness. Cleanroom: DESY. Part of the “Life of a cavity” image series. (Image courtesy of DESY/ILC, photographer: Heiner Müller-Elsner) |
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Eight cavities in their helium tank and all other necessary equipment are assembled into a cavity string. This requires extreme precision and extreme cleanliness. Cleanroom: DESY. Part of the “Life of a cavity” image series. (Image courtesy of DESY/ILC, photographer: Heiner Müller-Elsner) |
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Change of shift in the cleanroom. After passing a series of quality and performance tests, cavities are assembled into strings in the cleanroom. Cleanroom: DESY. Part of the “Life of a cavity” image series. (Image courtesy of DESY/ILC, photographer: Heiner Müller-Elsner) |
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Every little detail in the cleanroom needs to absolutely dust-free. An air pistol blows extremely clean air over the screws and a particle counter registers how many dust particles fly off it. Cleanroom: DESY. Part of the “Life of a cavity” image series. (Image courtesy of DESY/ILC, photographer: Heiner Müller-Elsner) |
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The tried and tested nine-cell cavities are standing ready for assembly. Cleanroom: DESY. Part of the “Life of a cavity” image series. (Image courtesy of DESY/ILC, photographer: Heiner Müller-Elsner) |
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The cavity has disappeared into a helium tank. During operation it sits in a bath of liquid helium which cools it down to almost absolute zero – a prerequisite for superconductivity. Cleanroom: DESY. Part of the “Life of a cavity” image series. (Image courtesy of DESY/ILC, photographer: Heiner Müller-Elsner) |
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A robot with a specially designed and programmed camera checks whether the welding seams may have the potential of causing a quench and what the inner surface of the cavity looks like. Part of the “Life of a cavity” image series. (Image courtesy of DESY/ILC, photographer: Heiner Müller-Elsner) |
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Only few companies around the world are qualified to turn the niobium into sheets. Which form the basis of the cavities’ cells. Part of the “Life of a cavity” image series. (Image courtesy of DESY/ILC, photographer: Heiner Müller-Elsner)
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The surface of the niobium sheets is inspected by eye at DESY, Germany. Part of the “Life of a cavity” image series. (Image courtesy of DESY/ILC, photographer: Heiner Müller-Elsner) |
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A scanning machine at DESY scans the niobium sheet for material defects. It can find faults down to 0.1 millimetre in size. Part of the “Life of a cavity” image series. (Image courtesy of DESY/ILC, photographer: Heiner Müller-Elsner) |
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Latest virtual-reality technology in DESY’s 3-D lab makes it possible to walk through the accelerator before it’s built. Part of the “Life of a cavity” image series. (Image courtesy of DESY/ILC, photographer: Heiner Müller-Elsner) |
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Future city of the ILC. Architect's view of an international science research city. (Courtesy: K. Mori and K. Hayakawa) |
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Former and new Asian Linear Collider Steering Committee (ALCSC) chair, Shin-ichi Kurokawa (left) and Jie Gao (right), meet at the First International Particle Accelerator Conference (IPAC'10) conference at Kyoto on May 2010. (Courtesy: Nobuko Kobayashi) |
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Scientists from the CDF and DZero collaborations at DOE's Fermilab have combined Tevatron data from their two experiments to increase the sensitivity for their search for the Higgs boson. While no Higgs boson has been found yet, the results announced today exclude a mass for the Higgs between 160 and 170 GeV/c² with 95 percent probability. A larger area is excluded at the 90 percent probability level. Earlier experiments at the Large Electron-Positron Collider at CERN excluded a Higgs boson with a mass of less than 114 GeV/c² at 95 percent probability. Calculations of quantum effects involving the Higgs boson require its mass to be less than 185 GeV/c². The results show that CDF and DZero are sensitive to potential Higgs signals. The Fermilab experimenters will test more and more of the available mass range for the Higgs as their experiments record more collision data and as they continue to refine their experimental analyses. (Courtesy: Fermilab) |
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Tesla-like accelerator cavity (Courtesy of Nobu Toge) |
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Ralph Colon inspects one of the 33 undulator magnets designed for SLAC's Linac Coherent Light Source. (Courtesy SLAC) |
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Looking east over the LCLS construction site toward Stanford University and the San Francisco Bay. (Courtesy: SLAC) |
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DESY accelerator physicist Lutz Lilje inspecting a TTF cavity (Credit DESY, photo: Christian Schmid) |
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Scientists prepare a superconducting cavity for a test in Fermilab's Vertical Test Stand. (Courtesy Fermilab Visual Media Services) |
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Scientists prepare a superconducting cavity for a test in Fermilab's Vertical Test Stand. (Courtesy Fermilab Visual Media Services) |
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Dressed Superconducting ILC Cavity insertion in Horizontal Test Stand at Meson Building. (Courtesy Fermilab Visual Media Services) |
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Dressed Superconducting ILC Cavity insertion in Horizontal Test Stand at Meson Building. (Courtesy Fermilab Visual Media Services) |
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Dressed Superconducting ILC Cavity insertion in Horizontal Test Stand at Meson Building. (Courtesy Fermilab Visual Media Services) |
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International Linear Collider ( ILC ) cavity preparation in clean room at MP9. (Courtesy Fermilab Visual Media Services) |
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International Linear Collider ( ILC ) cavity preparation in clean room at MP9. (Courtesy of Fermilab Visual Media Services) |
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International Linear Collider ( ILC ) Beam Test at Meson Lab. (Courtesy Fermilab Visual Media Services) |
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International Linear Collider ( ILC ) Beam Test at Meson Lab- Jacob Smith and Carlos Medina. (Courtesy Fermilab Visual Media Services) |
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International Linear Collider ( ILC ) Beam Test at Meson Lab - Heather Brown. (Courtesy Fermilab Visual Media Services) |
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International Linear Collider ( ILC ) Beam Test at Meson Lab - Seongtae Park. (Courtesy Fermilab Visual Media Services) |
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Artist's impression of the SiD detector concept for the ILC. (Graphic courtesy of Norman Graf, SLAC/Sandbox Studio) |
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Artist's impression of the interaction region, where the electrons and positrons would collide, inside the International Linear Collider. (Credit: Greg Stewart, SLAC) |
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A simulation of what the decay of a Z + Higgs to four jets would look like in an ILC detector. (Image courtesy of Norman Graf) |
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Participants at the ILC DR07 (Meeting on Damping Ring R&D) at Frascati, Italy, 5 to 7 March 2007. (Courtesy of INFN) |
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(L-R) John Mammosser (JLab), Cristian Boffo (Fermilab) and Damon Bice (Fermilab) look on during an electropolishing session of an ILC cavity. (Photo Credit: Greg Adams, DOE's Jefferson Lab) |
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Artist's rendition of a particle event inside the International Linear Collider. (Credit Sandbox Studio) |
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Energy scale (Credit: Sandbox Studio) |
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Energy scale (Credit: Sandbox Studio) |
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Artist's impression of the ILC tunnels. (Graphic courtesy of Fermilab/Sandbox Studio) |
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Artist’s impression of a map of the Quantum Universe, highlighting the discovery scenarios of the International Linear Collider. (Graphic courtesy of ILC / form one visual communication) |
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A schematic layout of the International Linear Collider. (Graphic courtesy of ILC / form one visual communication) |
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A technical timeline for the International Linear Collider. (Graphic courtesy of ILC / form one visual communication) |
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Graphic showing the discovery potential of the International Linear Collider. (Graphic courtesy of ILC/form one visual communication) |
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An L-band 9-cell cavity which was placed in a barrel-polishing setup. (Courtesy of KEK) |
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