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KMID : 1151820190130060847
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Journal of the Korean Society of Radiology
2019 Volume.13 No. 6 p.847 ~ p.856
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Study on Concentration Variation of 222Rn for Various Scintillators Using Low-Level Liquid Scintillation Counter
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Jeon Jae-Wan
Lee Deuk-Hee
Kim Jin-Seop
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Abstract
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The various environmental issues arose with the development of today's economy. naturally, people were increased interest in environment and the importance of research on drinking water and contamination are emerging especially. A number of country areas, uranium and 222Rn in ground water have been detected to people using as drinking water. So this study evaluated the way for more accurate measurements than when measuring 222Rn concentrations in the ground water containing. the experiment was performed using the low-level liquid scintillation counter with an alpha, beta analysis easy PSA function of pulse. the scintillator as the preparation of the ground water samples are mixed, the measure value detection is lowered over prepare period and expiration date. Energy spectrum was also moved to a lower side channel. As a long time to buy the scintillator and over time after opening, it was confirmed that detection is lowered. if the purpose is to use a different scintillator can see the energy through the channel change.
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KEYWORD
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222Rn, Scintillator, Groundwater, Liquid Scintillation Counter
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