Ion yields in HIGISOL experiments based on JYFLTRAP data and PACE4 simulations : based on JYFLTRAP data and PACE4 simulations

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Show simple item record Vainio, Laura 2012-04-13T09:27:21Z 2012-04-13T09:27:21Z 2012
dc.identifier.uri en
dc.description.abstract The purpose of this thesis was to calculate ion yields in the neutron-deficient mass region A=78-111 in heavy-ion ion-guide experiments at the Ion Guide Isotope Separator On-Line (IGISOL) facility in the Accelerator Laboratory of the University of Jyväskylä. The biggest challenge was that the experiments were not designed for yield calculations but for precision mass measurements. Therefore, only a small fraction of the available data could be used. The results were compared to theoretical cross sections calculated with PACE4 code. Ion yields agreed roughly with the cross-section calculations: On the one hand, the ions with the highest cross sections were detected. On the other hand, ratios between calculated cross sections and measured ion rates differed in some cases even within the same file. Cross sections for measured isotopes were in general more than 1 mb. Stable isotopes, which are used for calibration and reference purposes, were detected although no calculated cross section existed. Finally, some cross-section calculations were performed in order to find reasonable beam, target and energy combinations for future measurements. Main focus was on extending the JYFLTRAP measurements in the neutron-deficient A=78-111 region. Masses of some nuclei are already known with a precision which will be difficult to beat. For many of the nuclei of interest the calculated cross sections were found to be too small in order to safely evaluate whether measuring would succeed or not. Based on PACE4 calculations, the most promising candidates for future measurements are for example 79Y, 81Zr, 82Zr, 83Nb, 84Nb, 96-98Ag, 100In and 101In.
dc.format.extent 85 sivua
dc.language.iso eng
dc.rights This publication is copyrighted. You may download, display and print it for Your own personal use. Commercial use is prohibited. en
dc.rights Julkaisu on tekijänoikeussäännösten alainen. Teosta voi lukea ja tulostaa henkilökohtaista käyttöä varten. Käyttö kaupallisiin tarkoituksiin on kielletty. fi
dc.rights openAccess fi
dc.subject.other ioniohjain
dc.subject.other IGISOL
dc.subject.other JYFLTRAP
dc.subject.other ionituotto
dc.title Ion yields in HIGISOL experiments based on JYFLTRAP data and PACE4 simulations : based on JYFLTRAP data and PACE4 simulations
dc.identifier.urn URN:NBN:fi:jyu-201204131534
dc.subject.ysa ionit
dc.type.dcmitype Text en
dc.type.ontasot Pro gradu fi
dc.type.ontasot Master’s thesis en
dc.contributor.tiedekunta matemaattis-luonnontieteellinen tiedekunta fi
dc.contributor.tiedekunta Faculty of Sciences en
dc.contributor.laitos fysiikan laitos fi
dc.contributor.laitos Department of Physics en
dc.contributor.yliopisto University of Jyväskylä en
dc.contributor.yliopisto Jyväskylän yliopisto fi
dc.contributor.oppiaine fysiikka fi
dc.contributor.oppiaine Physics en 2012-04-13T09:27:22Z

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