Measuring the14C content in liquid scintillators
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2016
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Abstract
We are going to perform a series of measurements where the 14C/12 C ratio will be measured from several liquid scintillator samples with a dedicated setup. The setup is designed with the aim of measuring ratios smaller than 10-18. Measurements take place in two underground laboratories: in the Baksan Neutrino Observatory, Russia and in the Pyhäsalmi mine, Finland. In Baksan the measurements started in 2015 and in Pyhäsalmi they start in the beginning of 2015. In order to fully understand the operation of the setup and its background contributions a development of simulation packages has also been started. Low-energy neutrino detection with a liquid scintillator requires that the intrinsic 14C content in the liquid is extremely low. In the Borexino CTF detector at Gran Sasso, Italy the 14C/12C ratio of 2 × 10-18 has been achieved being the lowest 14C concentration ever measured. In principle, the older the oil or gas source that the liquid scintillator is derived of and the deeper it situates, the smaller the 14C/12C ratio is supposed to be. This, however, is not generally the case, and the ratio is probably determined by the U and Th content of the local environment.
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zavarzina2016journalmeasuring
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| Authors | T. Enqvist,I R Barabanov,L B Bezrukov,A M Gangapshev,Y M Gavrilyuk,V Yu Grishina,V I Gurentsov,J Hissa,J Joutsenvaara,V V Kazalov,S Krokhaleva,J Kutuniva,P Kuusiniemi,V V Kuzminov,A S Kurlovich,K Loo,B K Lubsandorzhiev,S Lubsandorzhiev,V P Morgalyuk,G Y Novikova,A M Pshukov,V V Sinev,M Słupecki,W H Trzaska,Sh I Umerov,A. V. Veresnikova,A Virkajärvi,Y A Yanovich,V P Zavarzina;T. Enqvist;I R Barabanov;L B Bezrukov;A M Gangapshev;Y M Gavrilyuk;V Yu Grishina;V I Gurentsov;J Hissa;J Joutsenvaara;V V Kazalov;S Krokhaleva;J Kutuniva;P Kuusiniemi;V V Kuzminov;A S Kurlovich;K Loo;B K Lubsandorzhiev;S Lubsandorzhiev;V P Morgalyuk;G Y Novikova;A M Pshukov;V V Sinev;M Słupecki;W H Trzaska;Sh I Umerov;A. V. Veresnikova;A Virkajärvi;Y A Yanovich;V P Zavarzina; |
| Journal | journal of physics: conference series |
| Year | 2016 |
| DOI |
10.1088/1742-6596/718/6/062018
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