Sökning: "neutron induced"

Visar resultat 1 - 5 av 17 uppsatser innehållade orden neutron induced.

  1. 1. Total Monte Carlo of the fission model in GEF and its influence on the nuclear evaporation in TALYS

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Tillämpad kärnfysik

    Författare :Karlsson Peter; [2023]
    Nyckelord :physics; nuclear physics; fission; neutron-induced; evaporation; Hauser-Feshbach; GEF; TALYS; Total Monte Carlo; TMC; fysik; kärnfysik; neutron-inducerad;

    Sammanfattning : Features recently added to the nuclear reaction software TALYS allow the use of the GEF model as a fission fragment generator. GEF generates data for fission fragment yields, total excitation energy (TXE), total kinetic energy (TKE) and individual fragment excitation energies (E*) with their standard deviations through Monte Carlo simulations for TALYS. LÄS MER

  2. 2. Determination of the source strength of an AmBe neutron source and design of flexible holder system for accurate measurements of ionising radiation

    L2-uppsats, Uppsala universitet/Tillämpad kärnfysik

    Författare :Mathilde Ragot; [2022]
    Nyckelord :neutron source nuclear physics;

    Sammanfattning : The goal of this project was to determine the source strength of an Americium-Beryllium neutron source by irradiating metal foils of different elements. The irradiated foils were then placed on a High Purity Germanium detector and γ-decay from the decay of the neutron induced reaction products was observed and used to deduce the neutron flux. LÄS MER

  3. 3. Thermal neutron counting and gamma-ray peak identification from fusion reactions, using a Sodern Genie-16 Neutron Generator

    Kandidat-uppsats, Lunds universitet/Kärnfysik; Lunds universitet/Fysiska institutionen

    Författare :Auden Ti; [2022]
    Nyckelord :Physics and Astronomy;

    Sammanfattning : This thesis work focuses on the categorisation of a Sodern Genie-16 Neutron Generator, at the Nuclear Applications Laboratory, Lund University. To that end, the goals of this work focuses on the re-development of the pre-existing infrastructure surrounding the Sodern Genie-16 Neutron Generator for the purposes of internally irradiating samples, and the subsequent categorisation of the new configuration for extraction of fast neutrons. LÄS MER

  4. 4. Benchmark of the fission channels in TALYS

    Master-uppsats,

    Författare :Fredrik Nordström; [2021]
    Nyckelord :Fission; Prompt neutrons; Prompt gamma-rays; Nuclear reaction codes; TALYS; GEF;

    Sammanfattning : In this project, different fission models in the nuclear reaction code TALYS have been compared to GEF version 2020/1.2. The data included in the comparison are mass yield distributions, average prompt neutron energies per fragment mass, and average multiplicities of both neutrons and γ-rays per fragment mass. LÄS MER

  5. 5. Benchmarking fission rate simulations through comparison with neutron activation data

    L3-uppsats, Uppsala universitet/Tillämpad kärnfysik

    Författare :Karlsson Peter; [2020]
    Nyckelord :Neutron activation; Gamma spectroscopy; Fission;

    Sammanfattning : Metal foils were implemented in a measurement of neutron-induced fission at the IGISOL facility in 2016. These foils were activated by a neutron flux during the experiment and measured after the beam was turned off. The radioactive products from the neutron activation were identified in an analysis of γ-ray spectroscopy data. LÄS MER