Yazar "Celik, Necati" için listeleme
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Assessment of Radiological Levels at Schools in Trabzon, Turkey
Cevik, Ugur; Celik, Ahmet; Celik, Necati; Ozkalayci, Fatih; Akbulut, Songul (Sage Publications Ltd, 2013)In this study, a survey on environmental radioactivity in 16 high schools located in north eastern region of Turkey (the black sea region, province of Trabzon) was carried out. Indoor air radon (Rn-222) concentrations were ... -
Building-up a code for the purpose of TRUE coincidence summing correction in gamma-ray spectrometry with EGS4
Celik, Necati; Altin, Duygu; Cevik, Ugur (Pergamon-Elsevier Science Ltd, 2015)In the presented study, a code was created for the purpose of true coincidence summing (TCS) correction factors for Cs-134. The created code was implemented in EGS4 Monte Carlo simulation package. TCS factors were determined ... -
Determination of the environmental natural radioactivity and mapping of natural background radioactivity of the Gumushane province, Turkey
Kaya, Selim; Kaya, Ali; Celik, Necati; Kara, Rasim Taylan; Taskin, Halim; Koz, Bahadir (Springer, 2020)The aim of the study is to determine the ambient radiation level in Gumushane province. With this aim, the gamma dose ratios absorbed in the air were surveyed by a portable gamma detector. The activity concentrations ... -
Effect of detector collimation on the measured mass attenuation coefficients of some elements for 59.5-661.6 keV gamma-rays
Celik, Necati; Cevik, Ugur; Celik, Ahmet (Elsevier, 2012)Mass attenuation coefficients were determined experimentally for Sc, Ni and W for gamma energies of 59.5, 122, 276, 302, 356, 383 and 662 keV for different detector collimator diameters ranging from 2 to 10 mm. The aim was ... -
ELEMENTAL AND RADIOACTIVITY ANALYSES OF MOSSES COLLECTED IN HATILA VALLEY NATIONAL PARK - EASTERN BLACK SEA REGION OF TURKEY
Koz, Bahadir; Cevik, Ugur; Celik, Necati (Parlar Scientific Publications (P S P), 2012)This study was performed in one of the most important parks of Turkey, the Hatila national park, where a gold mining activity is planned to be conducted. For this purpose, 40 moss samples were collected for heavy metal and ... -
HEAVY METAL ANALYSIS BY MOSS SPECIES IN THE BLACK SEA REGION OF TURKEY
Koz, Bahadir; Cevik, Ugur; Bulut, Volkan Numan; Kaya, Selim; Gundogdu, Ali; Celik, Necati (Parlar Scientific Publications (P S P), 2013)The heavy metal analysis of mosses in the Black Sea region of Turkey was determined using atomic absorption spectrometry method. The procedure was also validated by analysis of standard reference material (IAEA-336 Lichen). ... -
THE IMPOSSIBILITY OF PRODUCING I-131 FROM ITS DAUGHTER Xe-131 BY PHOTONUCLEAR REACTIONS
Bayram, Tuncay; Akkoyun, Serkan; Celik, Necati; Haciislamoglu, Emel; Uruk, Serhat; Senturk, Sevki (Rad Assoc, 2016)I-131 is one of the radioisotopes in nuclear medicine procedures for diagnostic and treatment purposes. It decays to Xe-131 by emitting beta particles. In this study, we have investigated the reproduction possibility of ... -
In situ gamma ray measurements for deciphering of radioactivity level in Sarihan pluton area of northeastern Turkey
Cinar, Hakan; Altundas, Suna; Celik, Necati; Maden, Nafiz (Springer Heidelberg, 2017)The present work utilizes in situ gamma ray spectrometric measurement data to map the surface geology of Sarihan Granitoid and its surrounding area. The study area comprises three different lithological units, namely, ... -
The in situ natural radionuclide (U-238,Th-232 and(40)K) concentrations in Gumuhane granitoids: implications for radiological hazard levels of Gumuhane city, northeast Turkey
Maden, Nafiz; Akaryali, Enver; Celik, Necati (Springer, 2019)We have carried out 48 in situ measurements on radioactivities of U-238, Th-232 and K-40 isotopes at the Gumuhane granitoid plutons employing gamma-ray spectrometer with a NaI(Tl) scintillation detector. The radionuclide ... -
Indoor and outdoor radon measurements at lung cancer patients' homes in the dwellings of Rize Province in Turkey
Ozen, Songul Akbulut; Celik, Necati; Dursun, Emrehan; Taskin, Halim (Springer, 2018)In this study, indoor and outdoor radon (Rn-222) surveys were carried out in the summer and winter seasons in homes of one hundred lung cancer patients in the year 2013-2014. The aim was to investigate the relationship ... -
Monte Carlo modelling of human body for dose conversion coefficients of Cs-137 in soil of the Eastern Black Sea region of Turkey
Celik, Necati (Taylor & Francis Ltd, 2012)Absorbed dose conversion coefficients for a human body standing on the soil surface were calculated for Cs-137 in the soil of Eastern Black Sea region of Turkey using the Monte Carlo simulation method. The results were ... -
A New Approach for Determination of Volumetric Water Content in Soil Samples by Gamma-Ray Transmission
Celik, Necati; Altin, Duygu; Cevik, Ugur (Springer International Publishing Ag, 2016)A new method was presented for the purpose of volumetric water content determination in any soil sample by gamma-ray transmission. Monte Carlo (MC) simulation technique was used to determine the functional behavior of the ... -
Radioactivity measurements and risk assessments of spa waters in some areas in Turkey
Duran, Selcen Uzun; Kucukomeroglu, Belgin; Damla, Nevzat; Taskin, Halim; Celik, Necati; Cevik, Ugur; Ersoy, Hakan (Taylor & Francis Ltd, 2017)The current study presents the results of the activity of radionuclides in spa waters, and evaluates their radiological influences on the population consuming these waters in the Central and Eastern Black Sea regions of ...
