Sökning: "electron beam profile"

Visar resultat 21 - 25 av 28 avhandlingar innehållade orden electron beam profile.

  1. 21. Parametric Model for Astrophysical Proton-Proton Interactions and Applications

    Författare :Niklas Karlsson; Per Carlson; Simon Swordy; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; astrophysics; gamma rays; proton-proton interactions; cosmic rays; Astronomy and astrophysics; Astronomi och astrofysik;

    Sammanfattning : Observations of gamma-rays have been made from celestial sources such as active galaxies, gamma-ray bursts and supernova remnants as well as the Galactic ridge. The study of gamma rays can provide information about production mechanisms and cosmic-ray acceleration. LÄS MER

  3. 22. Counting Calories : Studies of Energy Loss in a Segmented Calorimeter

    Författare :Sara Bergenius Gavler; Per Carlson; Oscar Adriani; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Physics; Fysik;

    Sammanfattning : The Gamma-ray Large Area Space Telescope (GLAST) is a space mission with anticipated launch in 2007. The aim is to study the gamma-ray sky in the energy range 10 keV – 300 GeV. The GLAST electromagnetic calorimeter is 8.6X0 deep and has a total of 1536 CsI(Tl) crystals each measuring 32. LÄS MER

  4. 23. Laser-driven particle acceleration - Experimental investigations

    Författare :Filip Lindau; Atomfysik; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES;

    Sammanfattning : This thesis describes experimental studies of laser-driven particle acceleration. With the focused intensity of today’s high-power lasers exceeding 10^18 W/cm2,extremely high-gradient accelerators are possible. LÄS MER

  5. 24. Fracture Mechanics in Design and Assessment of Existing Structures: Two Case Studies

    Författare :Pourya Noury; Raid Karoumi; Luleå tekniska universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Steel Structures; Stålbyggnad;

    Sammanfattning : In the present thesis, the application of fracture mechanics in design and assessment of steel structures has been studied.The first case study concerns a ring-flange connection used in wind turbine towers. The flange is rolled from straight steel profile into a complete ring. LÄS MER

  7. 25. Macromolecular design and architecture of aliphatic polyesters

    Författare :Karin Odelius; Ann-Christine Albertsson; Helmut Keul; KTH; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Ring-opening polymerization; L-lactide; 1; 5-dioxepane-2-one; ε-caprolactone; Polymerization kinetics; Star-shaped architecture; Spirocyclic tin initiator; Polymer chemistry; Polymerkemi;

    Sammanfattning : Public health care has reached a level where tissue or organ reconstruction by means of biodegradable short-term implants via e.g. tissue engineering will be practicable in the near future. LÄS MER