Heavy ion stopping power measurements with transmission methods

In this thesis experimental stopping power values have been determined at the Department of Physics, University of Jyväskylä. The studies have been performed with three variations of the transmission techniques, two conventional transmission methods and the novel time-of-flight (TOF) based method th...

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Main Author: Alanko, Tommi
Other Authors: Faculty of Mathematics and Science, Matemaattis-luonnontieteellinen tiedekunta, University of Jyväskylä, Jyväskylän yliopisto
Format: Doctoral dissertation
Language:eng
Published: 2002
Online Access: https://jyx.jyu.fi/handle/123456789/83844
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author Alanko, Tommi
author2 Faculty of Mathematics and Science Matemaattis-luonnontieteellinen tiedekunta University of Jyväskylä Jyväskylän yliopisto
author_facet Alanko, Tommi Faculty of Mathematics and Science Matemaattis-luonnontieteellinen tiedekunta University of Jyväskylä Jyväskylän yliopisto Alanko, Tommi Faculty of Mathematics and Science Matemaattis-luonnontieteellinen tiedekunta University of Jyväskylä Jyväskylän yliopisto
author_sort Alanko, Tommi
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description In this thesis experimental stopping power values have been determined at the Department of Physics, University of Jyväskylä. The studies have been performed with three variations of the transmission techniques, two conventional transmission methods and the novel time-of-flight (TOF) based method that provides continuous stopping power curves. Time-of-flight based method presented in this thesis extends the point-by-point measurements traditionally carried out by conventional transmission methods to continuous stopping power curves. Also, a TOF based measurement setup for simultaneous determination of stopping powers for several different ions at wide energy range is presented. The experimental measurements have been performed for several compound materials: havar, polyethylene terephthalate (mylar) and polycarbonate (lexan). Havar is a high strength metal alloy whereas mylar and polycarbonate are polymers. Materials have been selected because of their wide use in various applications, such as absorbers, windows, particle identification and radiation detection. Ions used in this study range from oxygen (O16) up to iodine (I127) with energies ranging from 0.35 to 5.0 MeV/u. The results acquired with different methods are compared with each other and previous literature and theoretical values. The results obtained with the different techniques agree well with each other and previous experimental values. Reasonable agreement can be seen also when compared with values obtained by various parameterisations.
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spellingShingle Alanko, Tommi Heavy ion stopping power measurements with transmission methods
title Heavy ion stopping power measurements with transmission methods
title_full Heavy ion stopping power measurements with transmission methods
title_fullStr Heavy ion stopping power measurements with transmission methods Heavy ion stopping power measurements with transmission methods
title_full_unstemmed Heavy ion stopping power measurements with transmission methods Heavy ion stopping power measurements with transmission methods
title_short Heavy ion stopping power measurements with transmission methods
title_sort heavy ion stopping power measurements with transmission methods
title_txtP Heavy ion stopping power measurements with transmission methods
url https://jyx.jyu.fi/handle/123456789/83844 http://www.urn.fi/URN:ISBN:978-951-39-9441-9
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