Half-life measurements of 212Po with thorium-loaded liquid scintillator
Precise measurement of half-life of 212Po (one of the daughter nuclides in radioactive chain of 232Th) was realized by means of liquid scintillator based on toluene doped by complex of thorium and trioctylphosphine oxide with concentration of Th ≈ 0.1 mass %. Fast photomultiplier tube and high frequ...
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| Format: | Article |
| Language: | English |
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Institute for Nuclear Research, National Academy of Sciences of Ukraine
2018-09-01
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| Series: | Ядерна фізика та енергетика |
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| Online Access: | http://jnpae.kinr.kiev.ua/19.3/html/19.3.0220.html |
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| author | P. Belli R. Bernabei R. S. Boiko F. A. Danevich A. Di Marco A. Incicchitti D. V. Kasperovych F. Cappella V. Caracciolo V. V. Kobychev O. G. Polischuk N. V. Sokur V. I. Tretyak R. Cerulli |
| author_facet | P. Belli R. Bernabei R. S. Boiko F. A. Danevich A. Di Marco A. Incicchitti D. V. Kasperovych F. Cappella V. Caracciolo V. V. Kobychev O. G. Polischuk N. V. Sokur V. I. Tretyak R. Cerulli |
| author_sort | P. Belli |
| collection | DOAJ |
| description | Precise measurement of half-life of 212Po (one of the daughter nuclides in radioactive chain of 232Th) was realized by means of liquid scintillator based on toluene doped by complex of thorium and trioctylphosphine oxide with concentration of Th ≈ 0.1 mass %. Fast photomultiplier tube and high frequency oscilloscope were used to acquire the scintillation signals waveforms. The algorithms were developed to find pairs of 212Bi β-decays and subsequent 212Po α-decays, to calculate time differences between the events in the pair, and to build 212Bi β-decay and 212Po α-decay energy spectra. Preliminary the 212Po half-life is T1/2 = (294.8 ± 1.9) ns. The experiment is in progress aiming at reduction of the statistical and systematic uncertainties. |
| format | Article |
| id | doaj-art-6fd2497eaf334b00bb2bd20ba5548698 |
| institution | DOAJ |
| issn | 1818-331X 2074-0565 |
| language | English |
| publishDate | 2018-09-01 |
| publisher | Institute for Nuclear Research, National Academy of Sciences of Ukraine |
| record_format | Article |
| series | Ядерна фізика та енергетика |
| spelling | doaj-art-6fd2497eaf334b00bb2bd20ba55486982025-08-20T03:19:15ZengInstitute for Nuclear Research, National Academy of Sciences of UkraineЯдерна фізика та енергетика1818-331X2074-05652018-09-01193220226doi.org/10.15407/jnpae2018.03.220Half-life measurements of 212Po with thorium-loaded liquid scintillatorP. Belli0R. Bernabei1R. S. Boiko2F. A. Danevich3A. Di Marco4A. Incicchitti5D. V. Kasperovych6F. Cappella7V. Caracciolo8V. V. Kobychev9O. G. Polischuk10N. V. Sokur11V. I. Tretyak12R. Cerulli13INFN, Sezione di Roma “Tor Vergata”, Rome, Italy; Dipartimento di Fisica, Universita di Roma “Tor Vergata”, Rome, ItalyINFN, Sezione di Roma “Tor Vergata”, Rome, Italy; Dipartimento di Fisica, Universita di Roma “Tor Vergata”, Rome, ItalyInstitute for Nuclear Research, National Academy of Sciences of Ukraine, Kyiv, Ukraine; National University of Life and Environmental Sciences of Ukraine, Kyiv, UkraineInstitute for Nuclear Research, National Academy of Sciences of Ukraine, Kyiv, UkraineINFN, Sezione di Roma “Tor Vergata”, Rome, Italy; Dipartimento di Fisica, Universita di Roma “Tor Vergata”, Rome, ItalyINFN, Sezione di Roma, Rome, Italy; Dipartimento di Fisica, Universita di Roma “La Sapienza”, Rome, ItalyInstitute for Nuclear Research, National Academy of Sciences of Ukraine, Kyiv, UkraineINFN, Sezione di Roma, Rome, ItalyINFN, Laboratori Nazionali del Gran Sasso, Assergi, Italy Institute for Nuclear Research, National Academy of Sciences of Ukraine, Kyiv, UkraineInstitute for Nuclear Research, National Academy of Sciences of Ukraine, Kyiv, UkraineInstitute for Nuclear Research, National Academy of Sciences of Ukraine, Kyiv, UkraineInstitute for Nuclear Research, National Academy of Sciences of Ukraine, Kyiv, UkraineINFN, Sezione di Roma “Tor Vergata”, Rome, Italy; Dipartimento di Fisica, Universita di Roma “Tor Vergata”, Rome, ItalyPrecise measurement of half-life of 212Po (one of the daughter nuclides in radioactive chain of 232Th) was realized by means of liquid scintillator based on toluene doped by complex of thorium and trioctylphosphine oxide with concentration of Th ≈ 0.1 mass %. Fast photomultiplier tube and high frequency oscilloscope were used to acquire the scintillation signals waveforms. The algorithms were developed to find pairs of 212Bi β-decays and subsequent 212Po α-decays, to calculate time differences between the events in the pair, and to build 212Bi β-decay and 212Po α-decay energy spectra. Preliminary the 212Po half-life is T1/2 = (294.8 ± 1.9) ns. The experiment is in progress aiming at reduction of the statistical and systematic uncertainties.http://jnpae.kinr.kiev.ua/19.3/html/19.3.0220.htmlα-decay212Po |
| spellingShingle | P. Belli R. Bernabei R. S. Boiko F. A. Danevich A. Di Marco A. Incicchitti D. V. Kasperovych F. Cappella V. Caracciolo V. V. Kobychev O. G. Polischuk N. V. Sokur V. I. Tretyak R. Cerulli Half-life measurements of 212Po with thorium-loaded liquid scintillator Ядерна фізика та енергетика α-decay 212Po |
| title | Half-life measurements of 212Po with thorium-loaded liquid scintillator |
| title_full | Half-life measurements of 212Po with thorium-loaded liquid scintillator |
| title_fullStr | Half-life measurements of 212Po with thorium-loaded liquid scintillator |
| title_full_unstemmed | Half-life measurements of 212Po with thorium-loaded liquid scintillator |
| title_short | Half-life measurements of 212Po with thorium-loaded liquid scintillator |
| title_sort | half life measurements of 212po with thorium loaded liquid scintillator |
| topic | α-decay 212Po |
| url | http://jnpae.kinr.kiev.ua/19.3/html/19.3.0220.html |
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