Sökning: "coincidence measurement"

Visar resultat 1 - 5 av 9 uppsatser innehållade orden coincidence measurement.

1. 1. The Commissioning of a Pixelated Charge-particle Detector : for High-sensitivity Measurements of Hydrogen

   Kandidat-uppsats, Uppsala universitet/Tillämpad kärnfysik

   Författare :Joacim Stenlund; Aram Himelius; [2023]
   Nyckelord :;

   Sammanfattning : The Tandem Laboratory at Uppsala University, a national research infrastructure forworld-leading materials analysis, has a long history of performing hydrogen measurementusing NRA (Nuclear Reaction Analysis). This project intents to diversify the infras-tructure for hydrogen measurement by investigating the feasibility of an advanced ERCS(Elastic Recoil Coincidence Scattering) system, enabling finer detection limits. LÄS MER

3. 2. Föreligger möjligheten att förutsäga miljöskandaler genom att analysera mätpunkter kopplade till ESG-data? : En kvantitativ studie

   Kandidat-uppsats, Högskolan i Gävle/Företagsekonomi

   Författare :Emir Smajic; Oskar Nordlander; [2020]
   Nyckelord :ESG; CSR; SRI; corporate scandal; environmental scandal; prediction; regression; ESG; CSR; SRI; företagsskandal; miljöskandal; prediktion; logistisk regression;

   Sammanfattning : Syfte: Företagsskandaler är ett högst relevant ämne då de ofta får stor medial uppmärksamhet och når investerare i snabb takt. En företagsskandal påverkar i många fall aktiepriset negativt samt får negativa finansiella konsekvenser för företagen. LÄS MER

4. 3. Generation and Characterization of Intense Attosecond Pulses

   Master-uppsats, Lunds universitet/Atomfysik; Lunds universitet/Fysiska institutionen

   Författare :Marius Plach; [2020]
   Nyckelord :Attosecond physics; high-order harmonic generation; high harmonic generation; HHG; attosecond pulses; molecular dynamics; attosecond pulse generation; harmonic emission time delay; temporal reconstruction of attosecond pulses; strong field processes; Three-step model; RABBIT; Reconstruction of Attosecond Beating By Interference of Two-photon Transition; Terawatt Laser System; Intense XUV Beamline; XUV; LLC; Physics and Astronomy;

   Sammanfattning : Research on ultrafast dynamics in atoms and molecules requires short pulses. In order to resolve processes taking place on a femtosecond timescale sufficiently, these pulses require a duration on the attosecond time scale. LÄS MER

5. 4. Measurement of particle yields induced by 200-MeV protons on multiple targets

   Kandidat-uppsats, Lunds universitet/Kärnfysik; Lunds universitet/Fysiska institutionen

   Författare :Rafael Antonio Lopez; [2018]
   Nyckelord :QFS; Quasi-free Scattering; 16O; 112Sn; 124Sn; FAIR; CsI Tl ; R3B; 6.3-MeV gamma; CALIFA; p; 2p ; Physics and Astronomy;

   Sammanfattning : One way to probe the structure of atomic nuclei far from stability is via quasi-free scattering (QFS) reactions. We conducted a (p,2p) QFS experiment on H2O, 112Sn, 124Sn and 208Pb targets in order to test the performance of CsI(Tl) detectors that are to be used in the upcoming R3B experiments at FAIR. LÄS MER

7. 5. Trace element analysis based on neutron activation with coincident gamma ray detection

   Master-uppsats, Lunds universitet/Fysiska institutionen; Lunds universitet/Kärnfysik

   Författare :Jessica Delgado; [2017]
   Nyckelord :scintillator detectors; gamma ray; gamma radiation; spectrometer; neutron activation analysis; trace element; Physics and Astronomy;

   Sammanfattning : In this work, six soil samples have been analyzed. The samples come from different sedimentary layers on Earth. They were previously studied with the objective to find the trace concentration of iridium, to correlate the increased concentrations of iridium with meteorite impacts that have occurred on Earth. LÄS MER