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首页> 外文会议>ICAPMA2013 >Quantitative Measurement of Gamma Activities of Radionuclides (~(131)I, ~(137)Cs, ~(134)Cs and ~(40)K) in Human Urine Samples Collected from Residents in Southern Region of Thailand
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Quantitative Measurement of Gamma Activities of Radionuclides (~(131)I, ~(137)Cs, ~(134)Cs and ~(40)K) in Human Urine Samples Collected from Residents in Southern Region of Thailand

机译：在泰国南部地区收集的人类尿液中，放射性核素（〜（131）I，〜（137）Cs，〜（134）Cs和〜（40）Cs和〜（40）k）的定量测​​量

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High-purity germanium (HPGe) detector and gamma spectrometry analysis system have been used for the determination of gamma activities of radionuclides (~(131)I, ~(137)Cs, ~(134)Cs and ~(40)K) in 90 human urine samples collected from residents in four provinces (Surat Thani, Nakhon Si Thammarat, Songkhla and Trang) in southern region, Thailand. Gamma radioactive standard sources (~(109)Cd, ~(57)Co, ~(133)Ba, ~(137)Cs, ~(54)Mn and ~(60)Co) were used to calibrate the detector and measurement system. Moreover, the well-known reference material ~(131)I in human urine were also used to analyze and determine all of human urine samples. The measuring time of each sample is 10,800 seconds. It was found that, the gamma activities of ~(131)I, ~(137)Cs, ~(134)Cs and ~(40)K in all samples were ranged from 0.35 - 7.74 Bq/d for ~(131)I, 0.28 - 7.38 Bq/d for ~(137)Cs, 0.20 - 9.93 Bq/d for ~(134)Cs and 8.56 - 274.32 Bq/d for ~(40)K with an average values of 2.40 ± 0.78 Bq/d, 2.41 ± 0.92 Bq/d, 2.66 ± 0.84 Bq/d and 93.50 ± 30.13 Bq/d, respectively. All results showed that no statistically significant correlation with the residential area. Furthermore, the present study data could be used to be a baseline data of gamma activities in human urine of Thai people in the southern Thailand. Moreover, this new database would be not only useful in comparing and assessing an amount of gamma activities inside human body but also monitoring the exposure of radioactivity to Thai people in case of emergency of nuclear accidents around the world.
机译：高纯度锗（HPGE）检测器和γ光谱分析系统已经用于测定放射性核素的γ活性（〜（131）I，〜（137）Cs，〜（134）Cs和〜（40）k） 90名从南部地区（泰国南部地区的四个省（Surat Thani，Nakhon Si Thammarat，Songkhla和Trang）收集的人类尿样。 γ放射性标准来源（〜（109）Cd，〜（57）Co，〜（133）Ba，〜（137）Cs，〜（54）Mn和〜（60）Co）用于校准检测器和测量系统。此外，人类尿液中的众所周知的参考材料〜（131）I也用于分析和确定所有人的尿液样本。每个样品的测量时间为10,800秒。结果发现，所有样品中的〜（131）I，〜（137）Cs，〜（134）Cs和〜（40）k的γ活性为0.35 - 7.74 bq / d，用于〜（131）i ，0.28 - 7.38 bq / d用于〜（137）cs，0.20-9.93 bq / d用于〜（134）cs和8.56-274.32 bq / d，用于〜（40）k，平均值为2.40±0.78 bq / d ，2.41±0.92 bq / d，2.66±0.84 bq / d分别和93.50±30.13 bq / d。所有结果表明，与住宅区没有统计上显着的相关性。此外，本研究数据可用于成为泰国南部人民尿液中γ活性的基线数据。此外，这种新数据库不仅可以比较和评估人体内部的伽玛活动，而且在世界各地的核事故发生紧急情况下监测泰国人的放射性暴露。

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