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
1992-01-01
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.File in questo prodotto:
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