Essays about: "Gamma-ray"

Showing result 1 - 5 of 81 essays containing the word Gamma-ray.

  1. 1. Fitting a photospheric prompt emission model to GRB data: The Kompaneets RMS approximation (KRA)

    University essay from KTH/Fysik

    Author : Oscar Wistemar; [2023]
    Keywords : Gamma-Ray Bursts; Astrophysics; Engineering Physics; Gamma-Blixtar; Astrofysik; Teknisk Fysik;

    Abstract : Gamma-ray bursts (GRBs) are some of the most energetic events in the universe. Shocks occurring below the photosphere are likely radiation mediated shocks (RMSs) and are suspected to shape the spectra. Due to computational costs of simulating RMSs, models had not been fitted to data and a faster model was needed. READ MORE

  3. 2. Development of Radon Detectors for Earthquake Prediction

    University essay from KTH/Skolan för teknikvetenskap (SCI)

    Author : Alma Partos; Astrid Schöldström; [2023]
    Keywords : Radon; earthquake; gamma ray spectroscopy;

    Abstract : The purpose of this project is to simulate the detection of γ-ray spectra emitted by radon isotopes and their daughters. This is done as a contribution to the development of radiation detectors to be used in a research project investigating the possibility of using increased amounts of the radioactive gas radon as an earthquake precursor. READ MORE

  4. 3. Single-peaked gamma-ray bursts in the Fermi GBM catalogue

    University essay from KTH/Fysik

    Author : Henric Hintze; [2022]
    Keywords : astroparticle physics; GBR; gamma-ray burst; single-peaked; single peaked; shock breakout; Fermi; GBM; gamma-ray burst monitor; light curve; low-luminosity; low luminosity; closure relation; astropartikelfysik; GBR; gammablixt; singelpeakad; shockbreakout; Fermi; GBM; gammablixtmonitor; ljuskurva; ljuskurvor; lågluminositets;

    Abstract : Gamma-ray burst light curves are notoriously irregular, yet a significant number consists of a single fast-rising, exponentially decaying pulse. These are called single-peaked light curves. READ MORE

  5. 4. Prototyping of an automated cyclic Neutron Activation Analysis setup

    University essay from Lunds universitet/Kärnfysik; Lunds universitet/Fysiska institutionen

    Author : Cornelius Maurer; [2022]
    Keywords : Nuclear Physics; Neutron activation analysis; cyclic-NAA; Physics and Astronomy;

    Abstract : A prototype Neutron Activation Analysis (NAA) setup based on a Deuterium-Tritium (DT) neutron generator is under development at Lund University. It serves as proof-of-principle for NAA based on a Compact Accelerator-driven Neutron Source. READ MORE

  6. 5. Fermi-LAT gamma-ray and multi-wavelength SED analysis and modelling of PKS 0426-380 : A thesis analysing the behaviour and properties of the blazar PKS 0426-380

    University essay from Linnéuniversitetet/Institutionen för fysik och elektroteknik (IFE)

    Author : Nathanael Löfström; [2022]
    Keywords : active galactic nucleus; black hole; AGN; Fermi-LAT; JetSeT;

    Abstract : An analysis is made on the Flat Spectrum Radio Quasar PKS 0426-380 using two sets of data. The first set of data is the Fermi-LAT data collected over the time 54682.66 − 59317.66 in Modified Julian Date within the energy range of 100 MeV to 500 GeV. READ MORE