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Showing 1 to 16 of 16 for “"Germanium Detectors"”.
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Calibration of Infrared Photons in Cryogenic Germanium Detectors
… for WIMPs. It is based primarily on deploying germanium and silicon detectors at cryogenic temperatures to search for direct WIMP-nucleus elastic scattering interaction through which lattice vibrations are generated and sensed in one of the coldest detectors ever built. The new phase of …
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Neural Network Methods for Improving Signal Processing in High-Purity Germanium Detectors for Rare Event Searches
… for self-supervised denoising of high-purity germanium p-type point contact detector signals. Faithful extraction of information from noisy signals is critical to the sensitivity of neutrinoless double-beta decay experiments, and deep learning-based denoising offers a complementary approach to …
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High Purity Germanium detectors for the search of rare events : background discrimination and future prospects with the GENIUS project
… neutrinoless double beta decay using High Purity Germanium detectors. In modern physics two of the main goals are to find out about the nature of dark matter and to answer the question on the neutrino mass. The HdMoi presently provides the best limits for neutrinoless double beta decay which …
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DESIGN, DEVELOPMENT AND VALIDATION OF NOVEL ELECTRICAL CONTACTING SYSTEMS, MECHANICAL ENCAPSULATION SOLUTIONS AND HIGH-RESOLUTION INTEGRATED CHARGE-SENSITIVE PREAMPLIFIERS FOR ADVANCED HIGH-PURITY GERMANIUM DETECTORS
Segmented High-Purity Germanium detectors are widely used in modern gamma spectroscopy experiments due to their outstanding energy resolution and precise position sensitivity. However, detailed technical and manufacturing specifications for these detectors are typically proprietary, as they are …
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KMESS: an open source software package using a semi-empirical mesh-grid method for the modeling of germanium detector efficiencies
… the absolute full-energy peak efficiencies of germanium detectors are primarily either too time consuming or not economically viable. In addition, these approaches are difficult to use for arbitrary source shapes and counting geometries. An open source software package, KMESS (Kevin's Mesh …
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Double-Beta Decay of 96Zr and Double-Electron Capture of 156Dy to Excited Final States
… was also investigated. Two coaxial high-purity germanium detectors were used in coincidence to detect gamma rays produced by the daughter nucleus as it de-excited to the ground state. After collecting 1.92 years of data with 17.91 g of enriched 96Zr, half-life limits at the level of 10^20 yr …
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The mobility of radiocesium and plutonium in Roach Lake in southern Nevada
… gamma emitting radionuclides using high purity germanium detectors. the plutonium analysis was performed, after chemical separation, by the detection of its alpha particle emissions with surface barrier detectors. Strontium-90 was determined at only one site, after extraction from the samples, …
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Superconducting gamma-detectors for non-destructive analysis in nuclear safeguards
… energy resolution superconducting gamma ray detectors operated at temperatures of 0. 1 K can improve the accuracy of non-destructive analysis of nuclear materials. These detectors offer an order of magnitude improvement in resolution over conventional high-purity germanium detectors. The …
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Attenuation of the scintillation light in liquid argon and investigation of the double beta decay of ⁷⁶Ge into excited states of ⁷⁶Se in the GERDA experiment
… been observed for Ge-76. GERDA operates enriched germanium detectors in liquid argon (LAr) which serves as an additional background veto using the scintillation light that is created when energy is deposited in LAr. The signal signature of the decay into excited states can be enhanced with the …
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Measurement of the Wavelength of the Lyman-alpha1 Transition of 208Pb81+ Using FOCAL Spectrometers
… two large-area position-sensitive microstrip germanium detectors. This PhD thesis includes the physics of the FOCAL spectrometer and the results obtained after a preliminary analysis of the experimental data.
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Beta-delayed proton emission of magnesium-20 and the RCMP silicon detector array
… GRIFFIN collaboration consists of 16 High Purity Germanium detectors with 8 fast timing LaBr3 used for studying gamma rays. It is a high effociency detector chamber with BGO shielding for Compton suppression. The combination of the two could provide more detailed study of nuclear structure for …
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Double-Beta Decay of <super>150</super>Nd to Excited Final States
… decay setup. In this setup, two high-purity germanium detectors were operated in coincidence to detect the deexcitation gamma rays of the daughter nucleus. This coincidence technique, along with the location underground, provides a considerable reduction in background in the regions of …
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An integrated heterodyne interferometer with on-chip detectors and modulators
… of on-chip beam-splitters, modulators, and germanium detectors in a Michelson-like configuration. The interferometer achieves a noise-limited position resolution of approximately 2 nm in a 1 mm by 6 mm footprint. The vibrometer and LIDAR modes; two modalities with important scientific, …
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NUCLEAR DEFORMATION IN FISSION FRAGMENTS STUDIED WITH NOVEL IMPLEMENTATIONS OF DOPPLER SHIFT LIFETIME MEASUREMENT TECHNIQUES
… active fis- sion target coupled to an array of germanium detectors. The nuclei have been populated via neutron-induced fission on 235 U, dissolved in a liquid scintillator (fission tag via active target). This reaction, combined with a high-resolution gamma detection system, has al- lowed for …
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Laser-Matter Interactions at Extreme Irradiance: X-ray Generation and Relativistic Channelling
… on crystals in combination with a CCD. Germanium detectors have also been employed in order to investigate the X-ray spectrum above a few keV more accurately. The laser-produced X-rays show extraordinary properties compared for example with those generated by the common X-ray tube. Very …
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A Search for WIMP Dark Matter using an Optimized Chi-square Technique on the Final Data from the Cryogenic Dark Matter Search Experiment (CDMS II).
… when they scatter from nuclei in the crystalline detectors made of germanium and silicon. These detectors, called Z-sensitive Ionization and Phonon detectors (ZIPs) are operated at <em>∼ </em>45 mK and simultaneously measure the ionization and the (athermal) phonons produced by particle …