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ZHAO CHONGDE China Institute of Atomic Energy, P. O. Box 275, Beijing, 102413. DETERMINATION OF ~(222)Rn IN THE WATER[J]. Atomic Energy Science and Technology, 1993, 27(1): 62-62. DOI: 10.7538/yzk.1993.27.01.0062
Citation: ZHAO CHONGDE China Institute of Atomic Energy, P. O. Box 275, Beijing, 102413. DETERMINATION OF ~(222)Rn IN THE WATER[J]. Atomic Energy Science and Technology, 1993, 27(1): 62-62. DOI: 10.7538/yzk.1993.27.01.0062
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  • ~(222)Rn dissolved in the water is determined using nuclear track detector (NTD) technique in atwofold manner: the α--sensitive NTD CR--39 is used to measure the α--activity of ~(222)Rn. This α detectoris calibrated by simultaneous γ measurement of the daughter nuclides ~(214)Pb and ~(214)Bi, which is in ra-dioactive equilibrium with ~(222)Rn. This technique was applied to determine quantitatively the ~(222)Rn con-centration as a function of depth of the KTB drill--borehole down to 2800 m.
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