Erlangen 2018 – wissenschaftliches Programm
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MS: Fachverband Massenspektrometrie
MS 9: Poster 1
MS 9.1: Poster
Donnerstag, 8. März 2018, 16:15–18:15, Redoutensaal
36Cl, a Tool to Determine Atmospheric Neutrons in Aircrafts. — •Manuel Lebert, Christoph Busser, Thomas Faestermann, J. M. Gomez-Guzman, Angelina Kinast, Dominik Koll, Gunther Korschinek, and David Krieg — Technische Universität München, Garching, Germany
For ultra-sensitive AMS measurements, the initial radioisotope concentration must not be altered by transportation or storage.
To investigate if transportation by aircrafts leads to alteration, NaCl was transported by plane for around 90 hours and afterwards the 36Cl (t1/2=3·105 a) concentration, produced by 35Cl(n,γ)36Cl reactions, was measured with AMS at the MLL in Munich. We found that these atmospheric neutrons had no effect on the samples.
In addition to that, the small concentration of 36Cl/Cl of few 10−16 which we found in the samples will be studied further. The effect of high energy muons formed in the atmosphere and the emission of neutrons by spontaneous fission of uranium in the salt stock beside others will be considered. Further measurements of unprocessed NaCl from the same salt mine are going to be performed.