Browsing Fysisk institutt by Title

Now showing items 2619-2638 of 3672

  • R-parity violating chargino decays at the LHC 
    Bomark, Nils-Erik; Kvellestad, Anders; Lola, Smaragda; Osland, Per; Raklev, Are (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2014)
    Supersymmetric models with R-parity violation (RPV) have become more popular following the lack of any excess of missing energy events at the 8 TeV LHC. To identify such models, the suggested searches generally rely on the ...
  • Radiation hard 3D silicon pixel sensors for use in the ATLAS detector at the HL-LHC 
    Heggelund, Andreas; Huiberts, Simon Kristian; Dorholt, Ole; Read, Alexander Lincoln; Røhne, Ole Myren; Sandaker, Heidi; Lauritzen, Magne Eik; Stugu, Bjarne Sandvik; Kok, Angela; Koybasi, Ozhan; Povoli, Marco; Bomben, M.; Lange, J.; Rummler, André (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)
    The High Luminosity LHC (HL-LHC) upgrade requires the planned Inner Tracker (ITk) of the ATLAS detector to tolerate extremely high radiation doses. Specifically, the innermost parts of the pixel system will have to withstand ...
  • Radiation Hard Multi-chip Sensor to Module Integration for Monolithic and Hybrid Pixel Detectors 
    van Rijnbach, Milou (Doctoral thesis / Doktoravhandling, 2023)
    In the pursuit of the high luminosity upgrade of the Large Hadron Collider (LHC) at CERN, the current Inner Detector of the ATLAS experiment will be completely replaced by a new all-silicon Inner Tracker (ITk). MALTA, a ...
  • Radiation hardness of MALTA2 monolithic CMOS imaging sensors on Czochralski substrates 
    van Rijnbach, Milou; Berlea, Dumitru V.; Dao, Valerio; Gaži, Martin; Allport, Phil; Tortajada, Ignacio A.; Behera, Prafulla; Bortoletto, Daniela; Buttar, Craig; Dachs, Florian; Dash, Ganapati; Dobrijević, Dominik; Fasselt, Lucian; de Acedo, Leyre F. S.; Gabrielli, Andrea; Gonella, Laura; González, Vicente; Gustavino, Giuliano; Jana, Pranati; Li, Long; Pernegger, Heinz; Piro, Francesco; Riedler, Petra; Sandaker, Heidi; Sánchez, Carlos S.; Snoeys, Walter; Suligoj, Tomislav; Núñez, Marcos V.; Vijay, Anusree; Weick, Julian; Worm, Steven; Zoubir, Abdelhak M. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2024)
    MALTA2 is the latest full-scale prototype of the MALTA family of Depleted Monolithic Active Pixel Sensors (DMAPS) produced in Tower Semiconductor 180nmCMOS sensor imaging technology. In order to comply with the requirements ...
  • Radiation Hardness of MALTA2, a Monolithic Active Pixel Sensor for Tracking Applications 
    Berlea, D.V.; Allport, P.; Tortajada, I. Asensi; Bortoletto, D.; Buttar, C.; Charbon, E.; Dachs, F.; Dao, V.; Denizili, H.; Dobrijevic, D.; de Acedo, L. Flores Sanz; Gabrielli, A.; Gazi, M.; Gonella, L.; Gonzalez, V.; Gustavino, G.; LeBlanc, M.; Oyulmaz, K.Y.; Pernegger, H.; Piro, F.; Riedler, P.; van Rijnbach, Rijnbach; Sandaker, Heidi; Sharma, A.; Snoeys, W.; Sanchez, C.A. Solans; Suligoj, T.; Nunez, M. Vazquez; Weick, J.; Worm, S.; Zoubir, A.M. (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
    MALTA is a depleted monolithic active pixel sensor (DMAPS) developed in the Tower Semiconductor 180-nm CMOS imaging process. Monolithic CMOS sensors offer advantages over current hybrid imaging sensors in terms of both ...
  • Radiation safety considerations for the use of radium-224-calciumcarbonate-microparticles in patients with peritoneal metastasis 
    Grønningsæter, Simen Rykkje; Blakkisrud, Johan; Selboe, Silje; Rootwelt-Revheim, Mona Elisabeth; Bruland, Øyvind; Bønsdorff, Tina Bjørnlund; Larsen, Stein Gunnar; Stokke, Caroline (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
    Aim Two ongoing phase I studies are investigating the use of radium-224 adsorbed to calcium carbonate micro particles ( 224 Ra-CaCO 3 -MP) to treat peritoneal metastasis originating from colorectal or ovarian cancer. The ...
  • A radiation tolerance study of the ALICE TPC Readout Control Unit 2 
    Zhao, Chengxin (Doctoral thesis / Doktoravhandling / PublishedVersion, 2017)
    ALICE is a general-purpose detector that is designed to study the physics of quark-gluon plasma. The Time Projection Chamber (TPC) is one of the major sub-detectors of ALICE. The TPC electronics consists of 4356 Front-end ...
  • Radiation-induced defect accumulation and annealing in Si-implanted gallium oxide 
    Kjeldby, Snorre Braathen; Azarov, Alexander; Nguyen, Phuong Dan; Venkatachalapathy, Vishnukanthan; Mikšová, R.; MacKová, A.; Kuznetsov, Andrej; Prytz, Øystein; Vines, Lasse (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2022)
    Defect accumulation and annealing phenomena in Si-implanted monoclinic gallium oxide (β-Ga 2 O 3 ) wafers, having [Formula: see text], (010), and (001) orientations, were studied by Rutherford backscattering spectrometry ...
  • Radiation-induced long-term dysphagia in survivors of head and neck cancer and association with dose-volume parameters 
    Huynh, Thuy-Tien Maria; Dale, Einar; Falk, Ragnhild Sørum; Hellebust, Taran Annette Paulsen; Astrup, Guro Lindviksmoen; Malinen, Eirik; Edin, Nina Frederike Jeppesen; Bjordal, Kristin; Herlofson, Bente Brokstad; Kiserud, Cecilie E.; Helland, Åslaug; Amdal, Cecilie Delphin (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2024)
    Background Although dysphagia is a common side effect after radiotherapy (RT) of head and neck cancer (HNC), data on long-term dysphagia is scarce. We aimed to 1) compare radiation dose parameters in HNC survivors with ...
  • Radiative Width of the Hoyle State from γ -Ray Spectroscopy 
    Kibédi, T.; Alshahrani, B.; Stuchbery, A.E.; Larsen, Ann-Cecilie; Görgen, Andreas; Siem, Sunniva; Guttormsen, Magne Sveen; Giacoppo, Francesca; Morales, A.I.; Sahin, Eda; Tveten, Gry Merete; Bello Garrote, Frank Leonel; Crespo Campo, Lucia; Eriksen, Tomas Kvalheim; Klintefjord, Malin; Maharramova, Sabina; Nyhus, Hilde-Therese; Tornyi, Tamas Gabor; Renstrøm, Therese; Paulsen, Wanja (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
    The cascading 3.21 and 4.44 MeV electric quadrupole transitions have been observed from the Hoyle state at 7.65 MeV excitation energy in 12C, excited by the 12C(p,p′) reaction at 10.7 MeV proton energy. From the proton-γ−γ ...
  • Radical generation of Quantum Dots and Carbon Dots under Electromagnetic Radiation 
    Christensen, Ingeborg Lie (Master thesis / Masteroppgave, 2009)
    The research community is constantly on the search for new methods and products to improve cancer diagnosis and therapy. One promising area is nanomedicine - the use of nanotechnology in medicine. Nanoparticles such as ...
  • Radicals in ammonium tartrate at 295 K by X-radiation: Revised radical structures by EMR and DFT analyses 
    Sagstuen, Einar; Kugler, Veronika; Hole, Eli Olaug; Lund, Anders (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)
    The simple amino acid l-α-alanine (ala) in polycrystalline form was among the first substances to be proposed and subsequently developed for Electron Paramagnetic Resonance (EPR)-based solid state radiation dosimetry. One ...
  • Radikaldanning i røntgenbestrålte einkrystallar av N-acetyl-L-tyrosin ved 295 K og 77 K : eit EPR-, ENDOR-, EIE- og DFT-studium 
    Eldevik, Kristine (Master thesis / Masteroppgave, 2006)
    EPR-spektroskopi, med avartar som ENDOR og EIE, er veletablerte teknikkar for studiar av radikaldanning i einkrystallar. Hovudmålet med dette arbeidet har vore å identifisere kva radikal som vert danna i einkrystallar av ...
  • Radiographic and fluoroscopic X-ray systems: Quality control of the X-ray tube and automatic exposure control using theoretical spectra to determine air kerma and dose to a homogenous phantom 
    Konst, Bente; Nøtthellen, Jacob; Bilet, Ellinor; Båth, Magnus (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2021)
    Purpose To develop a method to perform quality control (QC) of X-ray tubes and automatic exposure control (AEC) as a part of the QC of the radiographic and fluoroscopic X-ray system. Our aim is to verify the output from ...
  • Radiological features of brain hemorrhage through automated segmentation from computed tomography in stroke and traumatic brain injury 
    MacIntosh, Bradley; Liu, Qinghui; SCHELLHORN, TILL; Beyer, Mona K.; Groote, Inge Rasmus; Morberg, Pål; Poulin, Joshua M; Selseth, Maiken Nordahl; Bakke, Ragnhild Christin; Naqvi, Aina; Hillal, Amir; Ullberg, Teresa; Wasselius, Johan; Rønning, Ole Morten; Selnes, Per; Kristoffersen, Espen Saxhaug; Emblem, Kyrre E; Skogen, Karoline; Sandset, Else Charlotte; Bjørnerud, Atle (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2023)
    Introduction Radiological assessment is necessary to diagnose spontaneous intracerebral hemorrhage (ICH) and traumatic brain injury intracranial hemorrhage (TBI-bleed). Artificial intelligence (AI) deep learning tools ...
  • Radionuclides for Targeted Therapy: Physical Properties 
    Stokke, Caroline; Kvassheim, Monika; Blakkisrud, Johan (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2022)
    A search in PubMed revealed that 72 radionuclides have been considered for molecular or functional targeted radionuclide therapy. As radionuclide therapies increase in number and variations, it is important to understand ...
  • Radiosensitivity of cells in different layers of HT29 multicellular spheroids irradiated with x-rays 
    KALAITZIDOU, ILEKTRA (Master thesis / Masteroppgave, 2016)
    Cells of the established HT29 human colon adenocarcinoma line were grown as spheroids using continuous machine sstirring of cells in flasks coated with agarose. The cell response for different layers of the spheroids and ...
  • Radiotherapy-related lymphopenia in patients with advanced non-small cell lung cancer receiving palliative radiotherapy 
    Abravan, Azadeh; Eide, Hanne Astrid; Helland, Åslaug; Malinen, Eirik (Journal article / Tidsskriftartikkel / PublishedVersion; Peer reviewed, 2020)
    Background Lymphopenia during radiotherapy (RT) may have an adverse effect on treatment outcome. The aim of this study is to investigate associations between lymphopenia and RT parameters in patients with advanced lung ...
  • The rainbow as a student project involving numerical calculations 
    Amundsen, David Skålid; Kirkemo, Camilla Nestande; Nakkerud, Andreas; Trømborg, Jørgen; Vistnes, Arnt Inge (Journal article / Tidsskriftartikkel / AcceptedVersion; Peer reviewed, 2009)
    It is a challenge to find interesting and realistic projects where numerical methods can be used to enhance student understanding of physical phenomena. We present such a project in which a group of students used numerical ...
  • Ramp ADC with hyperbolic compression for high dynamic range image sensor in sequential 3D CMOS 
    Stjernen, Simen (Master thesis / Masteroppgave, 2021)