• 동위원소뉴스
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• no.11 s.107
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• pp.2-4
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• 2005

• 동위원소뉴스
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• no.5 s.29
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• pp.4-6
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• 1999

• 동위원소뉴스
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• no.4 s.28
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• pp.4-6
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• 1999

• 동위원소뉴스
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• no.7 s.31
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• pp.3-6
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• 1999

• 동위원소뉴스
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• no.4 s.40
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• pp.4-7
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• 2000

• 동위원소뉴스
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• no.6 s.42
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• pp.4-7
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• 2000

• Radioisotope journal
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• v.19 no.1
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• pp.90-100
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• 2004

• Journal of Radiation Industry
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• v.2 no.3
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• pp.135-140
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• 2008

A field tracer experiment using radioisotope was carried out to investigate the characteristics of a pollutant transport and a determination of the dispersion coefficients in a river system. The dispersion coefficients in the longitudinal and transverse directions were determined by using the measured concentration of a radioisotope. The two-dimensional numerical models were applied to calculate the flow and concentration fields at the experimental site. Several numerical simulations were performed to investigate the effects of the numerical results according to variations of the dispersion coefficients. The calculated concentrations agreed well with the measured ones.

• Radioisotope journal
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• v.14 no.2
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• pp.32-36
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• 1999

• Journal of Radiopharmaceuticals and Molecular Probes
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• v.5 no.1
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• pp.3-10
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• 2019

The activities per volume of $^{188}Re$ and $^{99m}Tc$ from their generators are dependent on the specific activity of their mother nuclides $^{188}W$ and $^{99}Mo$ respectively. After a particular lapse of time, the eluted RI activity is exponentially reduced and thus cannot satisfy the needs of clinical application. The purpose of this study is to develop a $^{188}Re$ and $^{99m}Tc$ concentration device with a compact size that can extend the period of use as well as conveniently concentrate the RI. We designed the concentration module by including two-different check valves that do not required any manual on-off operations. In these concentration process, cation exchange resin embedded with Ag and anion exchange resins were used. After completing the concentrating step, the recovering yield was identified to be more than 93% for $^{188}Re$ generators and 88% for $^{99m}Tc$ generators. Moreover, all these procedures were done within 5 min.