Display options
Cite
Poteshin SS, Sysoev AA, Lagunov SS, et al. Determination of traces of uranium and thorium in titanium and copper used for the construction of the Russian Emission Detector 100 by inductively coupled plasma mass spectrometry. Eur J Mass Spectrom (Chichester). 2015;21(3):335-40doi: 10.1255/ejms.1314.
Poteshin, S. S., Sysoev, A. A., Lagunov, S. S., Sereda, A., Sosnovtsev, V. V., Bolozdynya, A. I., & Efremenko, Y. B. (2015). Determination of traces of uranium and thorium in titanium and copper used for the construction of the Russian Emission Detector 100 by inductively coupled plasma mass spectrometry. European journal of mass spectrometry (Chichester, England), 21(3), 335-40. https://doi.org/10.1255/ejms.1314
Poteshin, Sergey S, et al. "Determination of traces of uranium and thorium in titanium and copper used for the construction of the Russian Emission Detector 100 by inductively coupled plasma mass spectrometry." European journal of mass spectrometry (Chichester, England) vol. 21,3 (2015): 335-40. doi: https://doi.org/10.1255/ejms.1314
Poteshin SS, Sysoev AA, Lagunov SS, Sereda A, Sosnovtsev VV, Bolozdynya AI, Efremenko YB. Determination of traces of uranium and thorium in titanium and copper used for the construction of the Russian Emission Detector 100 by inductively coupled plasma mass spectrometry. Eur J Mass Spectrom (Chichester). 2015;21(3):335-40. doi: 10.1255/ejms.1314. PMID: 26307714.
Copy Download .nbib Format: NLM
Share it on

Eur J Mass Spectrom (Chichester). 2015;21(3):335-40. doi: 10.1255/ejms.1314.

Determination of traces of uranium and thorium in titanium and copper used for the construction of the Russian Emission Detector 100 by inductively coupled plasma mass spectrometry.

European journal of mass spectrometry (Chichester, England)

Sergey S Poteshin, Alexey A Sysoev, Sergey S Lagunov, Andrei Sereda, Valery V Sosnovtsev, Alexander I Bolozdynya, Yuriy B Efremenko

Affiliations

  1. National Research Nuclear University MEPhI, 115409, Kashirskoe shosse 31, Moscow, Russian Federation. [email protected].
  2. National Research Nuclear University MEPhI, 115409, Kashirskoe shosse 31, Moscow, Russian Federation. Linantec Ltd, 115409, Kashirskoe shosse 31, Moscow, Russian Federation. [email protected].
  3. National Research Nuclear University MEPhI, 115409, Kashirskoe shosse 31, Moscow, Russian Federation. [email protected].
  4. Federal State Institution "111th Main Federal Center of medical and forensic examination of the Ministry of Defense of the Russian Federation", Moscow, Russian Federation. [email protected].
  5. National Research Nuclear University MEPhI, 115409, Kashirskoe shosse 31, Moscow, Russian Federation. [email protected].
  6. National Research Nuclear University MEPhI, 115409, Kashirskoe shosse 31, Moscow, Russian Federation. [email protected].
  7. National Research Nuclear University MEPhI, 115409, Kashirskoe shosse 31, Moscow, Russian Federation. University of Tennessee, Knoxville, USA. [email protected].

PMID: 26307714 DOI: 10.1255/ejms.1314

Abstract

The Russian Emission Detector 100 (RED-100) under construction at the National Research Nuclear University MEPhI (Moscow Engineering Physics Institute) is designed to detect the presently undiscovered effect of coherent neutrino scattering. One of the factors limiting the sensitivity of the detector is the spontaneous decay of uranium and thorium in the detector materials. Radioactive impurities in detector materials at levels of parts per billion can significantly affect the sensitivity. Five random samples of titanium and one of copper from materials used in the construction of the detector were selected for assay. The concentration of (232)Th and (238)U were measured by inductively coupled plasma mass spectrometry (ICP- MS) in solid titanium using both: solutions in acids and direct sampling by laser ablation (LA-ICP-MS). The LA- ICP-MS method allowed us to determine (238)U and (232)Th at subnanogram per gram levels. This method is much faster than ICP-MS with liquid injection. The titanium samples studied have impurities in the range between 1 ng g(-1) and 21 ng g(-1) for (238)U and 3 ng g(-1) and 31 ng g(-1) for (232)Th. In copper we set upper limits of 0.4 ng g(-1) for (238)U and 1 ng g(-1)for (232)Th. The total activity of the cryostat constructed from materials studied was estimated to be 43 Bq.

Publication Types