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https://olympias.lib.uoi.gr/jspui/handle/123456789/16398Full metadata record
| DC Field | Value | Language |
|---|---|---|
| dc.contributor.author | Stamoulis, K. C. | en |
| dc.contributor.author | Ioannides, K. G. | en |
| dc.contributor.author | Karamanis, D. | en |
| dc.date.accessioned | 2015-11-24T18:30:51Z | - |
| dc.date.available | 2015-11-24T18:30:51Z | - |
| dc.identifier.issn | 0003-2670 | - |
| dc.identifier.uri | https://olympias.lib.uoi.gr/jspui/handle/123456789/16398 | - |
| dc.rights | Default Licence | - |
| dc.subject | (238)u | en |
| dc.subject | (234)u | en |
| dc.subject | (226)ra | en |
| dc.subject | alpha/beta discrimination | en |
| dc.subject | liquid scintillation counting | en |
| dc.subject | spectrum unfolding | en |
| dc.subject | deconvolution | en |
| dc.subject | radioactivity | en |
| dc.subject | water | en |
| dc.subject | bottled mineral waters | en |
| dc.subject | environmental-samples | en |
| dc.subject | natural radionuclides | en |
| dc.subject | drinking-water | en |
| dc.subject | thin-films | en |
| dc.subject | ra-226 | en |
| dc.subject | spectrometry | en |
| dc.subject | radioactivity | en |
| dc.subject | thorium | en |
| dc.subject | food | en |
| dc.title | Deconvolution of liquid scintillation alpha spectra of mixtures of uranium and radium isotopes | en |
| heal.type | journalArticle | - |
| heal.type.en | Journal article | en |
| heal.type.el | Άρθρο Περιοδικού | el |
| heal.identifier.primary | DOI 10.1016/j.aca.2009.10.034 | - |
| heal.identifier.secondary | <Go to ISI>://000273625900003 | - |
| heal.identifier.secondary | http://ac.els-cdn.com/S0003267009014263/1-s2.0-S0003267009014263-main.pdf?_tid=bea43b1db484c2910bad44c2344b64e0&acdnat=1334223250_ebe56150ef62ad75c1e1e5c3ba0f7a13 | - |
| heal.language | en | - |
| heal.access | campus | - |
| heal.recordProvider | Πανεπιστήμιο Ιωαννίνων. Σχολή Επιστημών και Τεχνολογιών. Τμήμα Βιολογικών Εφαρμογών και Τεχνολογιών | el |
| heal.publicationDate | 2010 | - |
| heal.abstract | A method for the determination of uranium and radium isotopes in water samples is proposed. Liquid scintillation techniques were used for collecting alpha spectra, which were then analyzed by fitting the alpha peaks with overlapping Gaussians. The analysis can quantify the observed isotopes with accuracy depending on the activity of each isotope. In order to simulate the peaks with Gaussian normal distribution functions, the centroid of each peak as well as the full width at half maximum (FWHM) are required, as they depend on the quenching of the sample. For this purpose, samples with known activities of (226)Ra and its decay products and also of the uranium isotopes (238)U and (234)U, at various quenching levels, were used to establish the correlation of the peaks' shift with the quench effect. In addition, the correlation of the FWHM with the centroid of a peak was determined, using the same procedure. Following the above analysis technique, an average of 97 +/- 2% of detection efficiency and a lower limit of detection of 8.2 mBq kg(-1) for alpha isotopes were achieved. (C) 2009 Elsevier B.V. All rights reserved. | en |
| heal.journalName | Analytica Chimica Acta | en |
| heal.journalType | peer reviewed | - |
| heal.fullTextAvailability | TRUE | - |
| Appears in Collections: | Άρθρα σε επιστημονικά περιοδικά ( Ανοικτά) | |
Files in This Item:
| File | Description | Size | Format | |
|---|---|---|---|---|
| Stamoulis-2010-Deconvolution of liq.pdf | 581.12 kB | Adobe PDF | View/Open Request a copy |
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