Essays about: "Isotope analysis"

Showing result 1 - 5 of 52 essays containing the words Isotope analysis.

  1. 1. Decay Chains of Fast Alpha Emitters in the Actinide Region

    University essay from Lunds universitet/Fysiska institutionen; Lunds universitet/Partikel- och kärnfysik

    Author : Tanvir Sayed; [2024]
    Keywords : alpha decay; alpha emissions; fine structure; decay chain; decay scheme; alpha spectrometry; actinide; nucleus; nuclear structure; nuclear states; energy levels; uranium isotopes; U310 experiment; parasitic runs; decay station; TASISpec ; moving window deconvolution; digitisers; alpha-gamma coincidence; 221-Th decay; fine structure of alpha decay to 217-Ra; GSI; Gamow s theory; Geiger-Nuttall; chain search; short half-lives; Physics and Astronomy;

    Abstract : With the advent of increasingly advanced spectroscopic instruments after the turn of the century, it has become accessible to unravel the structure of instantly ‘vanishing’ nuclei, with lifetimes as short as 1 μs, and responsible for pile-up events in analog electronics. Experimental data has been recorded by the Nuclear Structure Group at Lund University for 48Ca/50Ti + nat. READ MORE

  3. 2. Forest regeneration and edge effects : an ecophysiological analysis after gap-cutting

    University essay from SLU/Dept. of Forest Ecology and Management

    Author : Tyra Tornberg; [2023]
    Keywords : Regeneration; Edge effects; Edge zone; Continuous cover forestry; Gap-cutting; Isotope analysis; 15N; Nitrogen; Carbon;

    Abstract : As continuous cover forestry is an ongoing topic in todays forest debate, questions are raised about eventual issues connected to the management. It is known that seedling performance can be poor near the edge of harvested areas, and around retained trees. This is a critical issue in transitioning toward continuous cover forestry. READ MORE

  4. 3. Haga Företagscenter - historical and preliminary technical investigation of a contaminated site in Anderstorp, Småland, Sweden

    University essay from Göteborgs universitet/Institutionen för geovetenskaper

    Author : Max Boestam; [2022-12-21]
    Keywords : ;

    Abstract : The Haga Företagscenter site in Anderstorp, Sweden has a long industrial history, which include the extensive use of chlorinated solvents. Trichloroethene (TCE) was used in large quantities here but the release to the environment has not been previously investigated. READ MORE

  5. 4. Aquaculture and its effect on the wild fish resource in a Swedish lake : An evaluation of changes in fat content, protein content and trophic niche

    University essay from SLU/Dept. of Wildlife, Fish and Environmental Studies

    Author : Emmy Nyberg; [2022]
    Keywords : Aquaculture; wild fish; fat content; protein content; stable isotopes;

    Abstract : Fish is nutritious and important as a food source for many people. It contains high levels of protein, important omega-3 fatty acids as well as micronutrients. For a sustainable fish consumption, aquaculture is needed but it can affect nearby ecosystems in many ways. READ MORE

  6. 5. Reconstructing Past Climate by Grain Size and Magnetic Susceptibility Analysis of Belgium Loess From the Late Quaternary

    University essay from Uppsala universitet/Institutionen för geovetenskaper

    Author : Susanna Åberg; [2022]
    Keywords : aeolian dust; Romont; Europe; true loess line; past climate reconstruction; vindtransporterat stoft; Romont; Europa; true loess line; rekonstruktion av tidigare klimat;

    Abstract : Aeolian dust that gets deposited builds up loess sequences that cover 10% of the Earth's continents. Such sequences can be several metres thick with material deposited over thousands of years, and therefore act like archives of past climates. READ MORE