Sökning: "Cross-section"

Visar resultat 1 - 5 av 469 avhandlingar innehållade ordet Cross-section.

  1. 1. MCNPX Simulations for Neutron Cross Section Measurements

    Författare :Milan Tesinsky; Janne Wallenius; Alan Tkaczyk; KTH; []
    Nyckelord :MCNPX; neutron; cross section;

    Sammanfattning : This thesis presents MCNPX simulations of the SCANDAL set-up used at the Theodor Svedberg Laboratory for neutron scattering cross-section measurements. The thesis describes processes and data important for the upcoming off-line data analysis. LÄS MER

  3. 2. The neutron-induced fission cross section of 233Pa : and the quest for clean and safe nuclear energy

    Författare :Fredrik Tovesson; Andreas Oberstedt; Dietrich Hilscher; Örebro universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; Fysik; fission; cross section; Pa-233; U-233; fysik; Physics; Fysik; Fysik; Physics;

    Sammanfattning : Neutron-induced fission of 233Pa has been investigated between 1.0 and 8.5 MeV, and the reaction cross section was determined. Due to the short half-life of 233Pa for β-decay, fission events from the daughter product 233U affect the analysis of the protactinium experiment. LÄS MER

  4. 3. Estimation and Testing in Panel Data with Cross-Section Dependence

    Författare :Simon Reese; Nationalekonomiska institutionen; []
    Nyckelord :SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; SAMHÄLLSVETENSKAP; SOCIAL SCIENCES; Factor-augmented panel regression; CCE estimation; cross-section dependence; common factor models; Factor-augmented panel regression; CCE estimation; cross-section dependence; common factor models;

    Sammanfattning : This thesis makes a contribution the econometrics of panel data with cross-section dependence (CSD). It consists of five self-contained papers. LÄS MER

  5. 4. Reaction Cross Section Measurements for p,d,3He and 4He at Intermediate Energies

    Författare :Agris Auce; Bo Höistad; Anders Ingemarsson; Florin Carstoiu; Uppsala universitet; []
    Nyckelord :NATURAL SCIENCES; NATURVETENSKAP; NATURVETENSKAP; NATURAL SCIENCES; Nuclear physics; Reaction cross section; proton; deuteron; 3He; alpha particle; measurement; intermediate energy; Kärnfysik; Nuclear physics; Kärnfysik;

    Sammanfattning : Reaction cross sections were measured for protons at 65.5 MeV, for deuterons at 37.8, 65.5, 97. LÄS MER

  7. 5. Assessment of Aircraft Radar Cross-Section for Detection Analysis

    Författare :Björn Persson; Ulf Ringertz; Martin Norsell; Peter Bull; João Tasso de Figueiredo Borges de Sousa; KTH; []
    Nyckelord :ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Flyg- och rymdteknik; Aerospace Engineering; Försvarssystem; Military Technology;

    Sammanfattning : Hiding from and surprising an opponent are tactics that have been used in warfare throughout history. They were features that aircraft originally possessed when they were first used in military operations. However, development of military technology is an endless struggle between advances in technology and counter technology. LÄS MER