Sökning: "Pia Thörngren"

Hittade 3 avhandlingar innehållade orden Pia Thörngren.

1. 1. Development of a zero-degree spectrometer in CELSIUS and the d + d → ⁴He + 2π reaction close to threshold

   Författare :Pia Thörngren Engblom; Francois Plouin; Stockholms universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Physics; Fysik; Physics; fysik;

   Sammanfattning : .... LÄS MER

3. 2. Double Pion Production in the dd to αππ reaction

   Författare :Samson Keleta; Pia Thörngren Engblom; Bo Höistad; Hans Ströher; Uppsala universitet; []
   Nyckelord :Nuclear physics; ABC effect; double pion; Kärnfysik; Nuclear Physics; kärnfysik;

   Sammanfattning : The reaction dd → 4Heππ has been measured exclusively for the first time. The measurements were performed at Td = 712 MeV and Td = 1029 MeV, with the WASA detector assembly at CELSIUS (Uppsala-Sweden). The aim was to investigate a long standing puzzle, the so called ABC effect. LÄS MER

4. 3. Modeling of Electron Cooling : Theory, Data and Applications

   Författare :Karin Rathsman; Tord Johansson; Pia Thörngren; Dieter Prasuhn; Uppsala universitet; []
   Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; Electron cooling; Beam dynamics; Vlasov technique; Nonlinear damping; Monte Carlo simulations; Nuclear physics; Kärnfysik; Nuclear Physics; Kärnfysik;

   Sammanfattning : The Vlasov technique is used to model the electron cooling force. Limitations of the applicability of the method is obtained by considering the perturbations of the electron plasma. LÄS MER