Sökning: "physical instrumentation"

Visar resultat 1 - 5 av 105 avhandlingar innehållade orden physical instrumentation.

  1. 1. FPGA-based Instrumentation for Advanced Physics Experiments

    Detta är en avhandling från Stockholm : Department of Physics, Stockholm University

    Författare :Attila Hidvégi; Stockholms universitet.; [2011]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; Instrumentation; Data acquisition; clock distribution; trigger; FPGA; PCB; LHC; ATLAS; XFEL; fysik; Physics;

    Sammanfattning : Modern physical experiments often demand advanced instrumentation based on advances in  technology. This work describes four instrumentation physics projects that are based on modern, high-capacity Field-Programmable Gate Arrays, making use of their versatility, programmability, high bandwidth communication interfaces and signal processing capabilities. LÄS MER

  2. 2. 3D X-ray microscopy: image formation, tomography and instrumentation

    Detta är en avhandling från Stockholm : KTH Royal Institute of Technology

    Författare :Mårten Selin; KTH.; [2016]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; X-ray microscopy; image formation theory; partial coherence in imaging; wave propagation; tomography; instrumentation; Physics; Fysik;

    Sammanfattning : Tomography in soft X-ray microscopy is an emerging technique for obtaining quantitative 3D structural information about cells. One of its strengths, compared with other techniques, is that it can image intact cells in their near-native state at a few 10 nm’s resolution, without staining. LÄS MER

  3. 3. Helium measuring system for on-line fuel and control rod integrity surveillance in BWRs

    Detta är en avhandling från Stockholm : KTH Royal Institute of Technology

    Författare :Irina Larsson; [2012]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; helium measurements; helium release; fuel and control rod failures;

    Sammanfattning : Accurate supervision of fuel and control rod integrity in a nuclear reactor core is very important for maintaining a safe and reliable operation of the reactor. Fuel rod failures can cause increased doses to personnel in the power plant, increased backend costs, limitations of the reactor operation and unplanned shut downs, which can lead to large economic losses. LÄS MER

  4. 4. Compact Soft X-Ray Microscopy Sources, Optics and Instrumentation

    Detta är en avhandling från Stockholm : KTH

    Författare :Per Takman; KTH.; [2007]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; soft x-ray microscopy; water window; compact; laser plasma; liquid jet; zone plate optics; NATURAL SCIENCES Physics; NATURVETENSKAP Fysik;

    Sammanfattning : This thesis describes the development of a sub-60-nm full-period resolution compact soft x-ray microscope operating in the water-window region (2.3-4.4 nm). Soft x-ray water-window microscopy is a powerful technique for high-resolution imaging of organic materials exploiting the natural contrast mechanism between carbon and oxygen, cf. LÄS MER

  5. 5. Numerical and Experimental Studies of Wakefield Accelerators

    Detta är en avhandling från Department of Physics, Lund University

    Författare :Henrik Ekerfelt; Lunds universitet.; Lund University.; [2019-05-21]
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; NATURVETENSKAP; NATURAL SCIENCES; laser wakefield acceleration; betatron radiation; ionization-induced trapping; density down-ramp trapping; colliding pulse injection; direct laser acceleration; laser wakefield merging; particle-in-cell simulations; high-intensity optics;

    Sammanfattning : This thesis is based on work done by the author on the development of laser wakefield accelerators.Wakefield acceleration in plasmas is a promising technique to provide the next generation of accelerating structures and particle beams. LÄS MER