dc.identifier.uri |
http://dx.doi.org/10.15488/12833 |
|
dc.identifier.uri |
https://www.repo.uni-hannover.de/handle/123456789/12936 |
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dc.contributor.author |
Mertes, Florian
|
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dc.contributor.author |
Kneip, Nina
|
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dc.contributor.author |
Heinke, Reinhard
|
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dc.contributor.author |
Kieck, Tom
|
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dc.contributor.author |
Studer, Dominik
|
|
dc.contributor.author |
Weber, Felix
|
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dc.contributor.author |
Röttger, Stefan
|
|
dc.contributor.author |
Röttger, Annette
|
|
dc.contributor.author |
Wendt, Klaus
|
|
dc.contributor.author |
Walther, Clemens
|
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dc.date.accessioned |
2022-10-06T06:53:28Z |
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dc.date.available |
2022-10-06T06:53:28Z |
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dc.date.issued |
2022 |
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dc.identifier.citation |
Mertes, F.; Kneip, N.; Heinke, R.; Kieck, T.; Studer, D. et al.: Ion implantation of 226Ra for a primary 222Rn emanation standard. In: Applied radiation and isotopes : a journal of nuclear and radiation techniques and their applications in the physical, chemical, biological, medical, earth, planetary, environmental and engineering science 181 (2022), 110093. DOI: https://doi.org/10.1016/j.apradiso.2021.110093 |
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dc.description.abstract |
Laser resonance ionization at the RISIKO 30 kV mass separator has been used to produce isotopically and isobarically pure and well quantified 222Rn emanation standards. Based upon laser-spectroscopic preparation studies, ion implantation into aluminum and tungsten targets has been carried out, providing overall implantation efficiencies of 40% up to 60%. The absolute implanted activity of 226Ra was determined by the technique of defined solid-angle α-particle spectrometry, where excellent energy resolution was observed. The 222Rn emanation coefficient of the produced targets was studied using α-particle and γ-ray spectrometry, and yielded results between 0.23 and 0.34, with relative uncertainty on the order of 1%. No dependence exceeding a 1% change of the emanation on humidity could be identified in the range of 15 %rH to 75 %rH, whereas there were hints of a slight correlation between the emanation and temperature. Additionally, and as expected, the emanation coefficient was found to be dependent on the target material as well as the implanted dose. © 2021 |
eng |
dc.language.iso |
eng |
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dc.publisher |
Amsterdam [u.a.] : Elsevier Science |
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dc.relation.ispartofseries |
Applied radiation and isotopes : a journal of nuclear and radiation techniques and their applications in the physical, chemical, biological, medical, earth, planetary, environmental and engineering science 181 (2022) |
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dc.rights |
CC BY 4.0 Unported |
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dc.rights.uri |
https://creativecommons.org/licenses/by/4.0/ |
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dc.subject |
222Rn emanation |
eng |
dc.subject |
Defined solid-angle alpha-particle spectrometry |
eng |
dc.subject |
Ion implantation |
eng |
dc.subject |
Laser ionization |
eng |
dc.subject.ddc |
530 | Physik
|
ger |
dc.subject.ddc |
610 | Medizin, Gesundheit
|
ger |
dc.subject.ddc |
540 | Chemie
|
ger |
dc.title |
Ion implantation of 226Ra for a primary 222Rn emanation standard |
eng |
dc.type |
Article |
|
dc.type |
Text |
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dc.relation.essn |
1872-9800 |
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dc.relation.doi |
https://doi.org/10.1016/j.apradiso.2021.110093 |
|
dc.bibliographicCitation.volume |
181 |
|
dc.bibliographicCitation.firstPage |
110093 |
|
dc.description.version |
publishedVersion |
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tib.accessRights |
frei zug�nglich |
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