Sökning: "Accelerator"

Visar resultat 11 - 15 av 234 avhandlingar innehållade ordet Accelerator.

  1. 11. Accelerator physics studies of the MAX-lab storage rings

    Författare :Magnus Sjöström; Lunds universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Electron accelerator; linear optics; storage ring; characterisation; synchrotron radiation; emittance; intrabeam scattering; electron beam profile;

    Sammanfattning : Within research, synchrotron radiation is a highly useful probe for the study of materials, their properties and structures. Currently, no other radiation source allows the combination of high intensity and short wavelengths. LÄS MER

  3. 12. Accelerator Mass Spectrometry of 36Cl and 129I : Analytical Aspects and Applications

    Författare :Vasily Alfimov; Göran Possnert; Ala Aldahan; Hans-Arno Synal; Uppsala universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Environmental technology; Accelerator Mass Spectrometry; iodine-129; chlorine-36; gas-filled magnet; radioactive tracer; Arctic Ocean; Nordic Seas; North Atlantic; thermohaline circulation; Sellafield; La Hague; Miljöteknik; Environmental engineering; Miljöteknik;

    Sammanfattning : Two long-lived halogen radionuclides (36Cl, T1/2 = 301 kyr, and 129I, T1/2 = 15.7 Myr) have been studied by means of Accelerator Mass Spectrometry (AMS) at the Uppsala Tandem Laboratory. The 36Cl measurements in natural samples using a medium-sized tandem accelerator (~1 MeV/amu) have been considered. LÄS MER

  4. 13. Electron beam profile measurements and emittance manipulation at the MAX-laboratory

    Författare :Åke Andersson; Lunds universitet; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; optics; quantum excitation; emittance; synchrotron radiation; electron beam; lattice; Accelerator; storage ring; diffraction; Physics; Fysik;

    Sammanfattning : The emittances of the electron beams at the MAX-laboratory accelerator system have been studied. Apart from the build-up of the diagnostic tools for precise determination of the beam spatial profiles, the objectives have been: a) to verify the accelerator design emittances at low currents and to try to determine the emittances also at high currents; b) to investigate possibilities to manipulate the emittances. LÄS MER

  5. 14. Multi-Mode Datapath Circuits for Flexible and Energy-Efficient Computing

    Författare :Tung Hoang; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; precision; power gating; accelerator; Multi-mode; energy efficiency;

    Sammanfattning : Tailored to run domain-specific applications under very strict constraints on, for example, real-time performance and power dissipation, embedded systems rarely can be implemented on general-purpose computing platforms. Rather, the embedded processor's architecture and implementation technology should be fine tuned to the needs of the particular embedded system. LÄS MER

  7. 15. Systems Engineering for Computing Systems at Accelerator based Research Facilities

    Författare :Thilo Friedrich; Martin Törngren; Gerrit Muller; KTH; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Systems Engineering; control system; computing system; particle accelerator; research facility; Machine Design; Maskinkonstruktion;

    Sammanfattning : Large research facilities are major research enablers for expanding fields in various natural sciences. Traditionally built for physics and astronomy, nowadays fields like life sciences, medicine, molecular sciences and material sciences have become the driving forces, especially for particle accelerator based research facilities. LÄS MER