BNO-SAO Conference 2017

The International Conference
SN 1987A, Quark Phase Transition in Compact Objects
and Multimessenger Astronomy


2-8 July 2017

Measuring of the 14C low abundance in liquid scintillator samples using small volume detector in low background chamber at Baksan

I.R. Barabanov, L.B. Bezrukov, A.V. Veresnikova, Yu.M. Gavrilyuk, A.M. Gangapshev, V.Yu. Grishina, V.I. Gurentsov, V.V. Kazalov, S.D. Krokhaleva, V.V. Kuz'minov, A.S. Kurlovich, B.K. Lubsandorzhiev, S.B. Lubsandorzhiev, A.K. Mezhokh, V.P. Morgalyuk, P.Yu. Naumov, G.Ya. Novikova, V.B. Petkov, A.M. Pshukov, A.Yu. Sidorenkov, V.V. Sinev*, Sh.I. Umerov, E A. Yanovich, T. Enqvist, P. Kuusiniemi, J. Joutsenvaara, A. Virkajarvi and V.P. Zavarzina

Abstract

      The scintillation detector was constructed to research ultralow concentrations of 14C in liquid scintillator samples. The detector is placed in the low background Laboratory BNO INR RAS at a depth of 4900 m.w.e. Measurements of 14C abundance was done for the samples of liquid scintillator on base of linear alkylbenzene. The detector counting rate was measured and the ratio 14C/12C was extracted from the experimental spectrum the LAB sample. The background model was developed and applied for 14C abundance analysis. The value obtained is 14C/12C (9.1 ± 1.0) ×10-16.


Reference:
I.R. Barabanov, L.B. Bezrukov, A.V. Veresnikova, Yu.M. Gavrilyuk, A.M. Gangapshev, V.Yu. Grishina, V.I. Gurentsov, V.V. Kazalov, S.D. Krokhaleva, V.V. Kuz'minov, A.S. Kurlovich, B.K. Lubsandorzhiev, S.B. Lubsandorzhiev, A.K. Mezhokh, V.P. Morgalyuk, P.Yu. Naumov, G.Ya. Novikova, V.B. Petkov, A.M. Pshukov, A.Yu. Sidorenkov, V.V. Sinev*, Sh.I. Umerov, E A. Yanovich, T. Enqvist, P. Kuusiniemi, J. Joutsenvaara, A. Virkajarvi and V.P. Zavarzina, "Measuring of the 14C low abundance in liquid scintillator samples using small volume detector in low background chamber at Baksan" in Proceedings of The International Conference "SN 1987A, Quark Phase Transition in Compact Objects and Multimessenger Astronomy", Russia, Terskol (BNO INR RAS), Nizhnij Arkhyz (SAO RAS), 2-8 July 2017, INR RAS, Moscow, 2018, pp. 185-189.
Download .pdf