An important experiment (BOREX) currently underway to study the solar neutrino flux requires, as part of its preliminary activities, the determination of U and Th as natural radioactivity background at a level of 10E-16 - 10E-17 g/g. This sensitivity can be obtained by coupling an ICP source with a double focusing MS in a new instrument (Plasmatrace,VG Elemental, UK). In the present paper a High Resolution Mass Spectrometer (HR-ICP-MS) was used to measure radionuclides at ultratrace levels in a TMB (Trimethylborate) matrix.

Determination of U and Th at the Sub-ppt Levels in a Liquid Scintillator Used for Solar Neutrino Measurements

DE BARI, ANTONIO
1992

Abstract

An important experiment (BOREX) currently underway to study the solar neutrino flux requires, as part of its preliminary activities, the determination of U and Th as natural radioactivity background at a level of 10E-16 - 10E-17 g/g. This sensitivity can be obtained by coupling an ICP source with a double focusing MS in a new instrument (Plasmatrace,VG Elemental, UK). In the present paper a High Resolution Mass Spectrometer (HR-ICP-MS) was used to measure radionuclides at ultratrace levels in a TMB (Trimethylborate) matrix.
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/11571/104877
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