Blar i forfatter "Løvhaugen, Pål"

Viser treff 1-3 av 3

    • Diagnostic imaging and ionizing radiation exposure in a level 1 trauma centre population met with trauma team activation: a one-year patient record audit 

      Bågenholm, Anna; Løvhaugen, Pål; Sundset, Rune; Ingebrigtsen, Tor (Journal article; Tidsskriftartikkel; Peer reviewed, 2020-02-15)
      This audit describes ionizing and non-ionizing diagnostic imaging at a regional trauma centre. All 144 patients (males 79.2%, median age 31 years) met with trauma team activation from 1 January 2015 to 31 December 2015 were included. We used data from electronic health records to identify all diagnostic imaging and report radiation exposure as dose area product (DAP) for conventional radiography ...

    • Optical Forces, Waveguides and Micro Raman Spectroscopy 

      Løvhaugen, Pål (Doctoral thesis; Doktorgradsavhandling, 2012-12-21)
      Optical waveguides are used to confine propagating light. In a dielectric waveguide, a small part of the propagating light travels along and just outside the waveguide surface. This evanescent field can interact with objects on the waveguide surface. Two effects of this light-matter interaction are presented, optical forces and Raman scattering. Optical forces are caused by changes in the momentum ...

    • Serial Raman spectroscopy of particles trapped on a waveguide 

      Løvhaugen, Pål; Ahluwalia, Balpreet Singh; Huser, Thomas Rolf; Hellesø, Olav Gaute (Journal article; Tidsskriftartikkel; Peer reviewed, 2013)
      We demonstrate that Raman spectroscopy can be used to characterize and identify particles that are trapped and propelled along optical waveguides. To accomplish this, microscopic particles on a waveguide are moved along the waveguide and then individually addressed by a focused laser beam to obtain their characteristic Raman signature within 1 second acquisition time. The spectrum is used to distinguish ...