radioactivity level and the measurement of soil gas radon concentration in dikili geothermal area, turkey

نویسندگان

e. tabar faculty of science and arts, sakarya university, sakarya, turkey

m.n. kumru institute of nuclear sciences, ege university, izmir, turkey

m. i̇çhedef institute of nuclear sciences, ege university, izmir, turkey

m.m. saç institute of nuclear sciences, ege university, izmir, turkey

چکیده

background: the natural radioactivity level and the radon concentration of soil were measured at four important geothermal area located in dikili geothermal region, turkey. materials and methods: the natural radionuclide content of soil samples were measured by nai(tl) gamma spectrometer system and the soil radon concentration were determined using kodak-pethe lr-115 type ii solid state nuclear track detectors (ssntd). the aim of the study was to investigate the seasonal variation of the radon concentration as well as evaluate the health hazards related to natural activity if any. results: it was found that the radon concentration of soil gas in the study area ranged from 98-8594 bq m-3 with an average value of 1920 bq m-3. the highest radon concentration observed in summer and the lowest concentration measured in winter. the average activity concentrations of 238u, 232th and 40k were found to be 28.7, 17.6 and 579.2 bq kg-1, respectively. towards this, annual effective doses from these radionuclides determined and analyzed. conclusion: the calculated dose values are not very high and don’t exceed the radioprotection standards suggested by international agencies.

برای دانلود باید عضویت طلایی داشته باشید

برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

Radioactivity level and the measurement of soil gas radon concentration in Dikili geothermal area, Turkey

Background: The natural radioactivity level and the radon concentration of soil were measured at four important geothermal area located in Dikili geothermal region, Turkey. Materials and Methods: The natural radionuclide content of soil samples were measured by NaI(Tl) gamma spectrometer system and the soil radon concentration were determined using Kodak-Pethe LR-115 Type II Solid State Nuclear...

متن کامل

Measurements of Radon Gas Concentration in Soil

Radon and their decay products are the main contributors of total inhalation dose in the living

متن کامل

Measurement of radon concentration in super-Kamiokande's buffer gas

To precisely measure radon concentrations in purified air supplied to the Super-Kamiokande detector as a buffer gas, we have developed a highly sensitive radon detector with an intrinsic background as low as ± 0.33 0.07 mBq/m. In this article, we discuss the construction and calibration of this detector as well as results of its application to the measurement and monitoring of the buffer gas la...

متن کامل

Comparative Measurements of Radon Concentration in Soil Using Passive and Active Methods in High Level Natural Radiation Area (HLNRA) of Ramsar

Background: Radon and its daughters are amongst the most important sources of natural exposure in the world. Soil is one of the significant sources of radon/thoron due to both radium and thorium so that the emanated thoron from it may cause increased uncertainties in radon measurements. Recently, a diffusion chamber has been designed and optimized for passive discriminative measurements of rado...

متن کامل

the underlying structure of language proficiency and the proficiency level

هدف از انجام این تخقیق بررسی رابطه احتمالی بین سطح مهارت زبان خارجی (foreign language proficiency) و ساختار مهارت زبان خارجی بود. تعداد 314 زبان آموز مونث و مذکر که عمدتا دانشجویان رشته های زبان انگلیسی در سطوح کارشناسی و کارشناسی ارشد بودند در این تحقیق شرکت کردند. از لحاظ سطح مهارت زبان خارجی شرکت کنندگان بسیار با هم متفاوت بودند، (75 نفر سطح پیشرفته، 113 نفر سطح متوسط، 126 سطح مقدماتی). کلا ...

15 صفحه اول

Assessment of radon-222 and radium-226 radioactivity concentration in the mineral and drinking water of Sareyn city

The main objective of this research is measurement and assessment of the Radon-222 and Radium-226 radioactive levels in mineral water and drinking water in the Sareyn city. The guidelines used for Radon-222 and Radium-226 radiation sampling and analysis were ASTM D: 5072-09 and ISO 13165-1: 2013, respectively. The concentration of Radon-222 and radium-226 in mineral water and drinking water sam...

متن کامل

منابع من

با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید


عنوان ژورنال:
iranian journal of radiation research

جلد ۱۱، شماره ۴، صفحات ۲۵۳-۲۶۱

کلمات کلیدی

میزبانی شده توسط پلتفرم ابری doprax.com

copyright © 2015-2023