Essays about: "moderator materials"

Found 5 essays containing the words moderator materials.

1. 1. Reactor Chemistry in LWR SMRs : Determination of the rate constant for the reaction between boric acid and hydroxyl radicals

   University essay from KTH/Tillämpad fysikalisk kemi

   Author : Fredrik Petersson; [2023]
   Keywords : LWR; SMR; Water chemistry; Radiolysis; Boric acid; LWR; SMR; vattenkemi; Radiolys; Borsyra; Hydroxylradikal;

   Abstract : Ett problem vid byggandet av nya kärnkraftverk för elproduktion är de stora investeringskostnaderna samt den långa tiden det att få tillstånd för en reaktor och bygga den. Nyligen färdigställdes den tredje reaktorn vid Olkiluoto I Finland, den tog 18 år att färdigställa exklusive tiden att få tillstånd för reaktorn. READ MORE

3. 2. Modeling of Low-Energy Neutron Scattering in Liquid Hydrogen Using NCrystal

   University essay from Lunds universitet/Fysiska institutionen; Lunds universitet/European Spallation Source ESS AB; Lunds universitet/Kärnfysik

   Author : Tim Günter; [2022]
   Keywords : ESS; European Spallation Source; neutron; scattering; moderator; liquid hydrogen; modeling; ncrystal; njoy; Physics and Astronomy;

   Abstract : The European Spallation Source ESS, under construction in Lund, Sweden, aims to produce high-brightness and intensity neutrons for a multitude of experiments upon completion. An efficient production of neutrons requires elaborate understanding of the moderation process which slows the neutrons from relativistic speed to a kinetic energy of meV. READ MORE

4. 3. Calculation of neutron scattering libraries for liquid ortho-deuterium and hydrogen deuteride

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

   Author : Alexander Huusko; [2022]
   Keywords : PIMD; NJOY; HD; D2; HighNESS; ESS; RPMD; TSL; Physics and Astronomy;

   Abstract : The European Spallation Source (ESS) has launched a project called HighNESS, with the task of investigating the potential of adding a second moderator system to the facility, with ortho-deuterium (o-D2) being the main material of interest. Another moderator material which could be of interest is hydrogen deuteride (HD). READ MORE

5. 4. Scattering Kernel Calculations for Liquid Para-Hydrogen Using Ring Polymer Molecular Dynamics

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

   Author : Pontus Nordin; [2020]
   Keywords : Neutron scattering; Para-hydrogen; Scattering kernels; Molecular dynamics; Ring polymer molecular dynamics; ESS; Physics and Astronomy;

   Abstract : The European Spallation Source will be a world leading neutron source available for a range of neutron scattering experiments in the scientific community. In order to accurately simulate the production of cold and thermal neutrons, an accurate calculation of the neutron cross section for the moderator materials is needed. READ MORE

6. 5. Characterisation of a neutron experimental station at the Lund Ion Beam Analysis Facility

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

   Author : Markus Kristensson; [2018]
   Keywords : neutrons; fast neutrons; thermal neutrons; neutron production; fusion; target materials; moderators; moderator materials; beam dump materials; neutron detection; neutron detector; coincidence measurements; nuclear physics; LIBAF; Lund Ion Beam Analysis Facility; particle accelerator; Physics and Astronomy;

   Abstract : At the 3 MeV light ion accelerator of the Lund Ion Beam Analysis Facility (LIBAF), a beamline is about to be constructed with the purpose of producing neutrons as a higher yield complement to the current Source-Testing Facility. When operational, the beamline will provide the possibility of tagging both thermal and fast neutrons. READ MORE