Kurnaz A, Küçükömeroğlu B, Keser R, Okumusoglu N T, Korkmaz F, Karahan G, Cevik U
Department of Physics, Faculty of Arts and Sciences, Karadeniz Technical University, Trabzon, TR 61080, Turkey.
Appl Radiat Isot. 2007 Nov;65(11):1281-9. doi: 10.1016/j.apradiso.2007.06.001. Epub 2007 Jun 26.
The natural radioactivity levels in soil and sediment samples of Firtina Valley have been determined. To our knowledge, there seems to be no information about radioactivity level in the Firtina Valley soils and sediments so far. For this reason, soil and sediment samples were collected along the Firtina Valley and analysis on the collected samples were carried out to determine 238U, 232Th, 40K and 137Cs radioisotopes using high purity germanium detector. The activity concentrations obtained for 226Ra, 214Pb, 214Bi, 228Ac, 208Tl, 40K and 137Cs are given in the unit of Bq/kg. The results have been compared with other radioactivity measurements in different country's soils and sediments. The radium equivalent activity (Raeq), the absorbed dose rate (D), the external hazard index (Hex), the annual gonadal dose equivalent (AGDE) and the annual effective dose equivalent (AEDE) were also calculated and compared with the international recommended values.
已测定了菲尔蒂纳山谷土壤和沉积物样本中的天然放射性水平。据我们所知，目前似乎尚无关于菲尔蒂纳山谷土壤和沉积物放射性水平的信息。因此，沿着菲尔蒂纳山谷采集了土壤和沉积物样本，并使用高纯锗探测器对采集的样本进行分析，以测定²³⁸U、²³²Th、⁴⁰K和¹³⁷Cs放射性同位素。以Bq/kg为单位给出了²²⁶Ra、²¹⁴Pb、²¹⁴Bi、²²⁸Ac、²⁰⁸Tl、⁴⁰K和¹³⁷Cs的活度浓度。已将结果与不同国家土壤和沉积物中的其他放射性测量结果进行了比较。还计算了镭当量活度（Raeq）、吸收剂量率（D）、外照射危害指数（Hex）、年性腺剂量当量（AGDE）和年有效剂量当量（AEDE），并与国际推荐值进行了比较。
