Search for dissertations about: "radioactive beams"

Showing result 11 - 15 of 21 swedish dissertations containing the words radioactive beams.

  2. 11. Spectroscopy of Stable and Radioactive Negative Ions

    Author : Annie Ringvall-Moberg; Göteborgs universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Atomic Physics; ISOLDE; CERN; Electron Correlation; Electron Affinity; Photodetachment; Negative Ions; Anions; Radioisotopes; Laser Photodetachment Spectroscopy; Resonance Ionization; Neutral Particle Detection; Wigner Threshold Law; Molecular Dissociation; RFQcb; DESIREE; Radiative Lifetimes;

    Abstract : Negative ions are unique quantum systems which are of fundamental interest within the field of atomic physics due to the importance of the electron correlation in their creation, stability, and existence. Properties of these ions, such as the electron affinity, i.e. READ MORE

  4. 12. Probing single-particle and collective states in atomic nuclei with Coulomb excitation

    Author : Douglas DiJulio; Kärnfysik; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; reduced matrix elements; radioactive ion beams; Coulomb excitation; Fysicumarkivet A:2013:Di Julio; detector development;

    Abstract : A series of experiments and developments, related to stable and radioactive isotopes, have been carried out. These studies have focused on measuring the low-lying excitations of spherical and deformed nuclei using electromagnetic (Coulomb) excitation and also on developments in detector technology for upcoming radioactive ion beams facilities. READ MORE

  5. 13. Tilted Foils Nuclear Spin Polarization at REX-ISOLDE

    Author : Hans Törnqvist; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; beta-NMR; ISOLDE; tilted foils; particle scattering; post-acceleration; REX-ISOLDE; nuclear spin polarization; HIE-ISOLDE;

    Abstract : This thesis will explain and summarize my work and involvement in experiments aimed at producing nuclear spin polarization of post-accelerated beams of ions with the tilted-foils technique at the REX-ISOLDE linear accelerator at CERN. Polarizing the nuclear spin of radioactive beams in particular may provide access to observables which may be difficult to obtain otherwise. READ MORE

  6. 14. Assessment of Long-Term Losses in Prestressed Concrete Structures - Application for Nuclear Reactor Containments

    Author : Peter Lundqvist; Avdelningen för Konstruktionsteknik; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; KstrConcrete; Nuclear reactor containments; prestressed concrete; prestress losses; bonded tendons; creep; shrinkage; relaxation; prediction models; resonance frequency; acoustoelasticity.;

    Abstract : Most nuclear reactors, both in Sweden and worldwide, are enclosed by a prestressed concrete containment. The main purpose of the containment is to prevent any radioactive discharge to the environment in the event of a major internal accident. READ MORE

  7. 15. Tilted Foils Nuclear Spin Polarization and Measurement with Coulomb Excitation

    Author : Hans Törnqvist; Chalmers tekniska högskola; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Tilted; Foils; Polarization; Excitation; Coulomb; Nuclear; Spin;

    Abstract : Developing new experimental tools is essential to expand the possibilites of probing the structure of atomic nuclei. The better the currently known properties of nuclei can be manipulated, the more information can be extracted from data collected in nuclear reaction experiments. READ MORE