Blar i Department of Physics and Technology på tittel
Viser treff 161-180 av 2331
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Characterization and application of 3D silicon microdosimeters
(Doctoral thesis, 2020-12-11)The effect of ionizing radiation on biological matter differs significantly between the various types of radiation. For the same amount of absorbed energy, some forms of radiation are much more effective in inducing ... -
Characterization and correction of errors in measured inherent optical properties: Multiple scattering errors in LISST-VSF measurements
(Doctoral thesis, 2023-11-28)Viktigheten av nøyaktige målinger av interaksjoner mellom lys og partikler i marine miljøer har økt de siste årene grunnet den økende interessen for miljøovervåkning, satellittmålinger, og trådløs optisk undervannskommunikasjon. ... -
Characterization and finite element modelling of piezoelectric ceramic discs vibrating in air, for a frequency range including the first two radial modes.
(Master thesis, 2021-08-13)The objectives of this work is to measure and characterize the electrical and acoustical behaviours of a piezoelectric ceramic disk of type Pz27, across a frequency spectrum covering the first two radial modes, and to ... -
Characterization of a neutral helium beam for helium microscopy
(Master thesis, 2015-06-29)Neutral helium beam microscopy is a new development in scientific instrumentation where neutral helium atoms are utilized to image a sample. The main advantage of using neutral helium is the significantly smaller energy ... -
Characterization of Associating Polymer (AP) Solutions. Influences on flow behavior by the degree of hydrophobicity and salinity
(Master thesis, 2013-06-02)The most applied polymer today for chemical improved oil recovery (IOR) processes, such as polymer flood and/or polymer well treatments, is the synthetic partially hydrolyzed polyacrylamide (HPAM) and its derivatives. ... -
Characterization of boron-coated silicon sensors for thermal neutron detection
(Journal article; Peer reviewed, 2020)Silicon neutron detectors can operate at low voltage and come with ease of fabrication and the possibility of integration of readout electronics and thus are attractive from an application point of view. In this paper, we ... -
Characterization of Hyper Spectral Irradiance and Radiance Sensors
(Master thesis, 2013-09-11)It is surprisingly problematic to to accurately measure light in the laboratory. Even more so when measuring in the field. There are lots of areas where measuring light spectrum and irradiance outside a laboratory is of ... -
Characterization of monolithic CMOS pixel sensor chip with ion beams for application in particle computed tomography
(Peer reviewed; Journal article, 2019)Particle computed tomography (pCT) is an emerging imaging modality that promises to reduce rangeuncertainty in particle therapy. The Bergen pCT collaboration aims to develop a novel pCT prototype basedon the ALPIDE monolithic ... -
Characterization of Silicon Photomultiplier and Design of Front-End Electronics for ALOFT
(Master thesis, 2022-06-01)ALOFT is an aircraft campaign led by Birkeland Centre for Space Science at University of Bergen. The primary goal of the campaign is to look for Terrestrial Gamma Ray Flashes and gamma-ray glows, both high-energetic phenomena ... -
Characterization of the ALPIDE chip with Helium-4 ions for Proton Computed Tomography
(Master thesis, 2018-12-06)Particle therapy has become an appealing therapeutic option for patients with various tumor types. The physical properties of charged particles allow for an improved dose distribution conformality compared to conventional ... -
Characterization of the ALPIDE Detector with Proton Beams for the Development of a Prototype Computed Tomography Machine at the University of Bergen
(Master thesis, 2018-07-04)In conventional radio therapy, photons is used in the treatment. Treatment with protons, however, greatly reduce the energy which is deposited in healthy tissue surrounding the tumor. The aim for the pCT group at the ... -
Characterization of Thunderstorm Cells Producing Observable Terrestrial Gamma-Ray Flashes
(Journal article; Peer reviewed, 2023)The meteorological conditions required for the production of Terrestrial Gamma-ray Flashes (TGFs) are not well understood. Particularly, the link between TGF production, meteorology, and weather severity is poorly characterized ... -
Characterization studies of a GEM detector prototype for the ALICE TPC upgrade for LHC Run 3 and beyond
(Master thesis, 2016-11-21)The multiwire proportional chamber signal readout of the ALICE Time Projection Chamber (TPC) will be replaced by Gas Electron Multiplier (GEM) detectors to meet the new requirements due to higher collision rate and energies ... -
Characterizing the initial conditions of heavy-ion collisions at the LHC with mean transverse momentum and anisotropic flow correlations
(Journal article; Peer reviewed, 2022)Correlations between mean transverse momentum [pT] and anisotropic flow coefficients v2 or v3 are measured as a function of centrality in Pb–Pb and Xe–Xe collisions at sNN=5.02 TeV and 5.44 TeV, respectively, with ALICE. ... -
Charge correlations using the balance function in Pb-Pb collisions at \(\sqrt{s_{NN}}\) = 2.76 TeV
(Peer reviewed; Journal article, 2013-06)In high–energy heavy–ion collisions, the correlations between the emitted particles can be used as a probe to gain insight into the charge creation mechanisms. In this article, we report the first results of such studies ... -
Charge separation relative to the reaction plane in Pb-Pb collisions at \(\sqrt{s_{NN}}\)= 2.76 TeV
(Peer reviewed; Journal article, 2013-01)Measurements of charge dependent azimuthal correlations with the ALICE detector at the LHC are reported for Pb-Pb collisions at \(\sqrt{s_{NN}}\) = 2.76 TeV. Two- and three-particle charge-dependent azimuthal correlations ... -
Charge-dependent flow and the search for the chiral magnetic wave in Pb-Pb collisions at \(\sqrt{s_{\rm NN}}\) = 2.76 TeV
(Peer reviewed; Journal article, 2016-04)We report on measurements of a charge-dependent flow using a novel three-particle correlator with ALICE in Pb–Pb collisions at the LHC, and discuss the implications for observation of local parity violation and the Chiral ... -
Charged Higgs boson searches and SemiConductor Tracker commissioning for the ATLAS experiment
(Doctoral thesis, 2007-06-21)The ATLAS (A Toroidal Lhc ApparatuS) experiment is one of four major experiments presently being installed at the upcoming Large Hadron Collider (LHC) at the European Centre for Nuclear Research (CERN) outside Geneva. In ... -
Charged jet cross section and fragmentation in proton-proton collisions at √s=7 TeV
(Peer reviewed; Journal article, 2019-01-31)We report the differential charged jet cross section and jet fragmentation distributions measured with the ALICE detector in proton-proton collisions at a center-of-mass energy √s=7 TeV. Jets with pseudorapidity|η|<0.5 ... -
Charged jet cross sections and properties in proton-proton collisions at \(\sqrt{s}=7\) TeV
(Peer reviewed; Journal article, 2015-06)The differential charged jet cross sections, jet fragmentation distributions, and jet shapes are measured in minimum bias proton-proton collisions at centre-of-mass energy \(\sqrt{s}=7\) TeV using the ALICE detector at the ...