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| Effects of γ-Ray Irradiation on the Color of Pearl Nucleus
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| Hea-Yeon Kim, Bong-Ki Min and Woo-Geon Jeong |
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| Department of Marine Biology Aquaculture, Graduate School, Gyeongsang National University Tongyeong, 650-160, Korea
Korea Pearl Laboratory, Seoul 110-390, Korea
Center for Research Facilities, Yeungnam University, Gyongsan 712-749, Korea
Department of |
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The effect of γ-ray irradiation on the color of nucleus and cultured pearls was investigated. After (60Co) γ-ray irradiation on the pearl nucleus, its color was altered from brownish to blackish brown or gray depending on irradiation dose. It was clearly found that the all samples are composed of aragonite. ESR spectra were based on the measurement of the paramagnetic species CO2- radicals by the interaction with the γ-ray irradiation in Mn2+ containing CaCO3. In this study, we investigated optimal detection method of γ-ray irradiation to establish destructive or non-destructive test for pearl nucleus.
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 v27_3_247-252.pdf (878.8K), Down : 117, 2012-02-01 17:33:25
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