Essays about: "Time-of-Flight"

Showing result 11 - 15 of 144 essays containing the word Time-of-Flight.

  1. 11. Effects of reconstruction parameters on the image quality and quantification of PET images from PET/MRI and PET/CT systems

    University essay from

    Author : Ali Amena Hussain; [2022-03-09]
    Keywords : Medical physics; PET CT; PET MRI; OSEM; BPL; NEMA IQ; positron emission tomography; magnetic resonance imaging; computed tomography; ordered Subset Expectation Maximization; The Bayesian Penalized Likelihood;

    Abstract : Aim: To study how reconstruction parameters affect the positron emission tomography (PET) image quality and quantitative results for the different lesion to background radioactivity ratios in three different PET systems. Introduction: Multimodality imaging that combines magnetic resonance imaging (MRI) or computed tomography (CT) with a PET system can produce medical images containing both functional and anatomical information. READ MORE

  3. 12. Investigation of the Plasma delay time in PIPS detectors using the LOHENGRIN spectrometer

    University essay from Uppsala universitet/Tillämpad kärnfysik

    Author : Elizaveta Yakovleva; Ivar Wikander; [2022]
    Keywords : ;

    Abstract : This project has examined the effects of plasma delay time (PDT) and pulse height defect (PHD) for protons, tritons and alpha particles. The goal was to determine PDT and PHD for alpha particles relative to protons, by using data from a subset of measurements taken with a silicon detector of type PIPS at the LOHENGRIN spectrometer. READ MORE

  4. 13. Separation and identification of IgG glycopeptides using Capillary Electrophoresis and Ultra High-Performance Liquid Chromatography-Mass Spectrometry

    University essay from KTH/Kemi

    Author : Madeleine Lövås; [2022]
    Keywords : Immunoglobulin G; peptides; CE; UHPLC-MS; MALDI-TOF; Immunglobulin G; peptider; CE; UHPLC-MS; MALDI-TOF;

    Abstract : I den här studien har metoder för att separera immunoglobulin (IgG) utvecklats med hjälp av kapillärelektrofores (CE) och Ultra högupplösande vätskekromatografi-Mass spektrometri (UHPLC-MS). Vid analysen av peptider från IgG spjälkat av trypsin (IgG TD) detekterades 26 glykopepeptider med UHPLC-MS genom att använda olika gradienter och mobilfaser. READ MORE

  5. 14. X-ray-induced intermolecular reactions in mixed clusters

    University essay from Uppsala universitet/Institutionen för fysik och astronomi

    Author : Astrid Bergman; [2022]
    Keywords : molecular cluster; biophysics; X-ray;

    Abstract : The aim of this project was to study what mixed cluster fragments were formed in the interaction between radiation and H2O-CO2 clusters formed by adiabatic expansion, both experimentally and using simulations. The experiment was done using a mass spectrometer at the MAX IV synchrotron facility and by studying the time-of-flight of the ionic fragments. READ MORE

  6. 15. ROOM MAPPING FOR TUNING OF HIGH FIDELITY SOUND SYSTEMS

    University essay from Mälardalens universitet/Akademin för innovation, design och teknik

    Author : Nabaz Sherif; Nils Sundelius; [2022]
    Keywords : ;

    Abstract : Using autonomous drones for positioning and tuning speakers in a room, could give the owners of the speakers a better and more personalized sound experience, if the speakers are tuned for the environment. As a first step towards that goal this project investigated methods that could use data gathered from a Crazyflie drone to identify interesting acoustic properties of a room. READ MORE