韓國 溫泉水의 Tritium 濃度 測定 = A Study on the Tritium Measurement in the Hot-spring Water in Korea

다국어 초록 (Multilingual Abstract)

This is a research on the tritium measurement in hot-spring water by means of the distillatory and the electrolytic concentration methods. The instrument used was the liquid scientillation counter(L.S.C) and the water samples were collected from two spots of each hot-spring located in sixteen different places in Korea.
In the distillatory concentration method, each sample was distilled by the Liebig distillatory apparatus and the tritium contents in these samples were measured by L.S.C., while in the electrolytic concentration method, each distilled sample was concentrated by the electrolysis and then similar measurement by L.S.C. were done. In the electrolytic process, however, the tritium enrichment factor was determined using standardized tritiated water of known activity.
Some of results obtained in this study are summarized as follows;
1. In the unconcentrated samples, the maximum and minimum tritium contents are 16.86±2.57TR (54.62±8.32 pci/1) at Haeundae spring in Gyeongsangnamdo and 12.41±2.41 TR (40.20±7.77 pci/1) at Youngwha in Gyeongsangbukdo respectively with the mean value 14.35±1.45 TR(46.51±4.65 pci/1).
2. In the concentrated samples also, the maximum value 21.24±1.54 TR (68.95±5.01 pci/1) and the minimum value 15.03±0.85 TR (48.68±2.77 pci/1) are detected at the same places as above with the mean value 17.81±2.19 TR(57.59±7.18 pci/1).
3. The Haeundae spring containing the maximum tritium in the hot-spring water is located near the seacoast, while the Youngwha spring containing the minimum tritium is located in the farthest inland from seacoast. It is found therefore that these results agree well with the previous data showing the tritium contents of the hot-springs in the inner continent are lower than those of the spring near the riverside and the seacoast.
4. This experiment shows discrepancy of 3.45±1.63 TR (11.14±5.35 pci/1) in tritium contents between the electrolytically processed and the distilled samples.
5. The average tritium contents (14.35±1.45 TR, 17.81±2.19 TR) in Korean hot-spring waters are much lower than that of the previous studies on ground water, so that it may be considered the tritium value in Korean hot-spring waters is nothing harmful to the human body.

목차 (Table of Contents)

• Ⅰ. 序 論
• Ⅱ. 理論的 背景
• A. Tritium의 物理的 特性
• B. Tritium의 生成 및 分布
• 1. 生 成
• 2. 分 布
• Ⅲ. 試料採取 및 測定
• A. 採取地點
• B. 試料製作
• 1. 試料精製
• 2. 電氣分解 濃縮
• 3. Cocktail mixture
• C. 測 定
• 1. 測定裝置
• 2. 測定値의 補正
• 3. 測定値의 計算
• Ⅳ. 測定結果 및 考察
• A. 濃縮되지 않은 試料水의 Tritium 含量
• B. 電氣分解法에 의한 濃縮試料의 Tritium 含量
• Ⅴ. 結 論
• 參考文獻
• Summary