Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 8 of 8 for “"Gas detectors."”.
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Development of micro pattern gas detectors for high rate experiments
Since the introduction of Micro Strip Gaseous Chambers (MSGC) and Gas Electron Multipliers (GEM) in the early 90s, a large family of different Micro Pattern Gas Detectors (MPGD) has grown, offering high rate capability and an excellent position accuracy. A combined system of MSGC and GEM was …
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Fabrication, Characterization, and Transport Analysis of Silicon-Based Microsystems: Micro Fuel Cells and Micro Gas Perconcentrators
Second, we have developed a muGPC that helps gas detectors sniff a trace amount of toxic vapors by increasing their concentration via adsorption and thermal desorption. Integration with electrostatic microvalves enabled the muGPC to achieve extremely small dead volumes and fast injection times …
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A model of the directional sensitivity of low-pressure CF₄ dark matter detectors
… of the major unsolved puzzles in modern physics. Detectors with sensitivity to the direction of certain classes of dark matter particles have potentially very powerful discrimination ability against more mundane backgrounds. The Dark Matter Time Projection Chamber (DMTPC) collaboration is actively …
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MicroGC: Of Detectors and their Integration
Gaseous phase is a critical state of matter around us. It mediates between the solid crust on earth and inter-stellar vacuum. Apart from the atmosphere surrounding us where compounds are present, natively, in a gaseous phase, they are also trapped within soil and dissolved in oceanic water. …
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XENON100 Dark Matter Search: Scintillation Response of Liquid Xenon to Electronic Recoils
… dark matter. XENON100 is a dual-phase (liquid-gas) time projection chamber containing a total of 161 kg of liquid xenon (LXe) with a 62kg WIMP target mass. It has been built with radiopure materials to achieve an ultra-low electromagnetic background and operated at the Laboratori Nazionali del …
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The determination of the helium discharge detector response to fixed gases
… has been found to be sensitive to the fixed gases oxygen, nitrogen, and hydrogen at detection levels 10-100 times more sensitive than possible with a Bow-Mac Thermal Conductivity Detector. Detection levels o~ approximately 1.9 E-4 ~ v/v oxygen, 3.1 E-4 ~ v/v nitrogen, and 3.0 E-3 ~ v/v …
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The XENON100 Dark Matter Experiment: Design, Construction, Calibration and 2010 Search Results with Improved Measurement of the Scintillation Response of Liquid Xenon to Low-Energy Nuclear Recoils
… is to look for its interactions in terrestrial detectors where it is expected to scatter off nuclei. In 2007, the XENON10 experiment took the lead over the most sensitive direct detection dark matter search in operation, the CDMS II experiment, by probing spin-independent WIMP-nucleon …
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NEUTRON SCATTERING STUDIES OF CRUDE OIL VISCOSITY REDUCTION WITH ELECTRIC FIELD
… sample. After the sample chamber, there are 2D gas detectors to collect the elastic scattering information. SANS usually uses collimation of the neutron beam to determine the scattering angle of a neutron, which results in an even lower signal-to-noise ratio for data that contains information on …