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Accession number;01A0231199
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| Title;Infrared characterization of OH impurity species and radiation-induced luminescence for natural quartz. |
| Author;
YANAGAWA YUJI
(Niigatadai Daigakuinshizenkagakukenkyuka)
TSUBOI TAKASHI
(Niigata Univ., Fac. of Sci.)
HASHIMOTO TETSUO
(Niigata Univ., Fac. of Sci.)
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Journal Title;Abstracts of Papers. Symposium on Radiochemistry
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Journal Code:F0139B
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ISSN:1345-2762
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VOL.44th;NO.;PAGE.42(2000)
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| Figure&Table&Reference; |
| Pub. Country;Japan |
| Language;Japanese |
| Abstract;The mechanism of the blue thermoluminescence for natural quartz has been discussed on the basis of the OH impurity, the color center distribution, and the thermoluminescence color image. Microscopic infrared spectroscopy clarified the behaviors of OH species in natural quartz due to gamma-ray irradiation. The mapping for the Al-OH absorption band revealed that the darker color center corresponded to the weaker absorption. The darker color resulted in blue therrmoluminescence with higher intensity, according to the thermoluminescence color image. The Al-OH concentration after irradiation decreases while the intensity of blue thermoluminescence and the darkness of color center were increased. These results show that the impurities related to OH have an effect on the quenching for radiation-induced emission and that the hydrogen radical derived by the irradiation acts as a killer of radiation-induced Al center. (author abst.) |
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