Search for dissertations about: "highly charged ions"

Showing result 1 - 5 of 44 swedish dissertations containing the words highly charged ions.

  1. 1. Transmission of slow highly charged ions through nano-structures

    University dissertation from Stockholm : Department of Physics, Stockholm University

    Author : Nadeem Akram; Stockholms universitet.; [2012]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Highly charged ions; nano-structures; nanocapillaries; ion-guiding; fysik; Physics;

    Abstract : This thesis is based on experimental investigations of transmitting slow highly charged ions through nano-structures of various cross-sections. Transmission through rhombic and rectangular nanocapillaries in muscovite and phlogopite mica, respectively, is used to study the guiding and shaping of highly charged ion beams. READ MORE

  2. 2. Spectroscopic Investigations of Highly Charged Tungsten Ions - Atomic Spectroscopy and Fusion Plasma Diagnostics

    University dissertation from Atomic Physics, Department of Physics, Lund University

    Author : Joel Clementson; Lunds universitet.; Lund University.; [2010]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; extreme ultraviolet spectra; spheromak; electron beam ion trap; magnetic fusion; tungsten; highly charged ions; atomic structure; x-ray spectroscopy; plasma diagnostics;

    Abstract : Popular Abstract in Swedish Atomspektra har varit ett viktigt forskningsområde inom fysiken sedan mitten av 1800-talet. Då elektromagnetisk strålning, såsom synligt ljus, ultraviolett- och röntgenstrålning, är unik för varje grundämne ger ett observerat spektrum information om vilka slags atomer som emitterar strålningen. READ MORE

  3. 3. The Penning trap mass spectrometer SMILETRAP II and evaporative cooling of highly-charged ions

    University dissertation from Stockholm : Department of Physics, Stockholm University

    Author : Matthias Hobein; Stockholms universitet.; [2011]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Penning trap; Precision mass spectrometry; Atomic mass; Highly-charged ions; Evaporative cooling; Coherent oscillation; Ion beam emittance; NATURAL SCIENCES Physics Atomic and molecular physics Atomic physics; NATURVETENSKAP Fysik Atom- och molekylfysik Atomfysik; fysik; Physics;

    Abstract : Accurate mass values have wide-ranging applications in physics and metrology, allowing, for example, to test quantum electrodynamics and fundamental symmetries, to determine fundamental constants, and to establish weight standards.This thesis describes the new high-precision double-Penning trap mass spectrometer SMILETRAP II which aims at relative uncertainties in the mass determination of 10-10 and below. READ MORE

  4. 4. Guiding of highly charged ions through insulating nanocapillaries

    University dissertation from Stockholm : Department of Physics, Stockholm University

    Author : Hongqiang Zhang; Stockholms universitet.; [2010]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURAL SCIENCES Physics; NATURVETENSKAP Fysik; NATURAL SCIENCES Physics Atomic and molecular physics Atomic physics; NATURVETENSKAP Fysik Atom- och molekylfysik Atomfysik; fysik; Physics;

    Abstract : This thesis contains experimental work on guiding of highly charged ions through insulating nanocapillaries. We have studied the time evolution of angular distributions of transmitted ions under well defined initial conditions: already charged, as well as fully discharged nanocapillaries, by using a two-dimensional position sensitive Micro Channel Plate detector with a data acquisition system working in event mode. READ MORE

  5. 5. Spectroscopy of highly charged ions: New studies in the He, Be, N, O, Na and Mg isoelectronic sequences

    University dissertation from Department of Physics, Lund University

    Author : Ilmar Kink; [1999]
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Atomic and molecular physics; Fysicumarkivet A:1999:Kink; solar corona; Atom- och molekylärfysik; SUMER; highly charged ions; isoelectronic sequences; spectroscopy; atomic lifetimes; Beam-foil; SOHO.;

    Abstract : Spectroscopic investigations of highly charged ions have been performed in the VUV, UV and visible spectral regions using mainly the beam-foil technique. New 2s22px3l levels have been established in N and O-like Si and S, together with many transitions between these levels. READ MORE