Title of article
Radon concentration measurement in water by means of α liquid-scintillation spectrometry with a PERALS spectrometer
Author/Authors
Hamanaka، نويسنده , , Shunichi and Shizuma، نويسنده , , Kiyoshi and Wen، نويسنده , , Xiao-qiong and Iwatani، نويسنده , , Kazuo and Hasai، نويسنده , , Hiromi، نويسنده ,
Pages
5
From page
314
To page
318
Abstract
A high-resolution α liquid-scintillation spectrometer, PERALS, has been applied to the measurement of radon concentration in water. The efficiency calibration has been performed for the 5.49 MeV α-rays from 222Rn incorporated with a solvent extraction. Optimum conditions of the solvent extraction for radon have been investigated, and a volumetric ratio of 3 ml scintillator against 1 l sample water was adopted. The lower detection limit was estimated to be 0.68 Bq l−1 (3σ) in water. Applications of this method to ground and spring water samples have been given compared with those results by the γ-ray spectrometry method.
Journal title
Astroparticle Physics
Record number
2005358
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