Search for dissertations about: "14C measurements"
Showing result 1 - 5 of 20 swedish dissertations containing the words 14C measurements.
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1. 11C/14C and 18F/19F kinetic isotope effects : methods, measurements and calculations
Abstract : .... READ MORE
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2. Exploring the Possibilities of 14C Bomb-Pulse Dating of Human Tissue Samples
Abstract : The testing of nuclear weapons in the atmosphere, in the middle of the 20'h century, resulted in a bomb-pulse excess of atmospheric 14C. A bomb-pulse dating method was thus developed. The latter is a method to determine the time of formation of formerly living modern (i.e. READ MORE
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3. Solar variability over the Holocene period : disentangling geomagnetic and solar influences on a new continuous 10Be record from Little Dome C, Antarctica
Abstract : Reliable information on solar activity over the Holocene period is important to predict the Sun in the future and to understand the mechanism behind the Sun-climate linkage. Presently, there are discrepancies in the proxy data of solar activity due to reasons that are not yet understood. READ MORE
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4. Improvement of the AMS-technique and applications to 3H and 59Ni Measurements
Abstract : Accelerator mass spectrometry (AMS) is a highly sensitive technique for counting atoms. Its main advantage in comparison with radiometric methods is the smaller amount of sample required (by a factor of a thousand). The method has a high efficiency and requires only some ten mg of sample material. READ MORE
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5. Development of the Lund AMS facility for the detection of Al-26 -- with applications in plant ecology
Abstract : Accelerator mass spectrometry (AMS) is a highly sensitive technique to count atoms. The method has a high efficiency, which makes it possible to measure small samples in a relatively short time, usually less than an hour. During the work for this thesis, methods have been developed to detect Al-26 at the Lund AMS facility. READ MORE