"' David Robert Nygren "'( born December 30, 1938 ) is a particle physicist known for his invention of the time projection chamber.
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A detector with a large drift region can be operated as a time projection chamber; a detector with a smaller drift region operates as a simple proportional counter.
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The collaboration is building a series of noble liquid time projection chambers ( TPCs ) that are designed to be employed at the Gran Sasso National Laboratory in Assergi, Italy.
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In recent years other means of position-sensitive electron amplification and detection have become more widely used, especially in conjunction with the increased application of time projection chambers in nuclear physics.
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The main tracking devices are four large volume time projection chambers ( TPCs ), which are capable of detecting up to 70 % of all charged particles created in the studied reactions.
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The "'Dark Matter Time Projection Chamber ( DMTPC ) "'is an experiment for direct detection of weakly interacting massive particles ( WIMPs ), one of the most favored candidates for dark matter.
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Using a two-phase ( liquid / gas ) Time Projection Chamber with active target mass ranging from tens to hundreds of kilograms, the XENON project has operated the XENON10 and XENON100 detectors at the cross-sections.
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In particle physics there have been many devices used for tracking as bubble chambers, multi wire proportional chambers, time projection chambers, and, with the advent of modern photolithography, the solid state trackers, also called silicon trackers.
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In 1977, Carlo Rubbia devised a liquid argon time projection chamber, or LArTPC . The LArTPC operates under many of the same principles as Nygren's initial TPC design, but uses liquid argon as a sensitive medium instead of gas.
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The EMCal covers almost the full length of the ALICE Time Projection Chamber and central detector, and a third of its azimuth placed back-to-back with the ALICE Photon Spectrometer-a smaller, highly granular lead-tungstate calorimeter.
