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...

This paper reviews some aspects of solid-state nuclear track detectors (SSNTDs) and their applications in the radon and other research fields. Several geometrical models for the track growth given in the literature are described and compared. It is found that different models give close results for the dimensions of track openings. One of the main parameters that govern track formation is the b...

indoor radon concentrations, the annual effective dose rate and the annual equivalent dose rate to the lung and to the public were measured in the dwellings of 10 neighborhoods located on the west side of the river tigris (al-karkh) in baghdad city using passive dosimeters. cr-39 solid state nuclear track detector (ssntd) technique was used for radon measurements. ninety-one dosimeters were dis...

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...

In the present study annual exposure and inhalation dose due to radon and its progeny were measured in some selected dwellings of Hardoi District (U.P.) by using solid state nuclear track detector (LR 115 Type-II Plastic track detector). The measurement was repeated on a time integrated four quarterly cycles to cover all the four seasons (summer, rainy, autumn & winter) of the calendar year. Th...

We measured neutron cross-sections of various threshold reactions using different quasimonoenergetic neutron sources. Our motivation for the cross-section measurements comes from the "Energy plus Transmutation" project. In this international project we use neutron activation foils for measurements of high energy neutron field, which is produced during the proton or deuteron irradiation of a thi...

Humans are continuously exposed to ionizing radiation from natural sources. The main contributors to natural radiation are high-energy cosmic radiation and radioactive nuclides that originate in the earth’s crust. Rn, a decay product of Ra, originates from the naturally occurring U decay series. Rn, the only gas in the U decay series, is chemically inert, but is radioactive and exposure to it a...

Estimation of equilibrium factor (F), equilibrium equivalent concentration (EEC), inhalation dose and its seasonal variation in indoor atmosphere of Hardoi District were carried out in sixty dwellings of 10 different villages. In the present study the average values of radon and thoron equilibrium factor was found to 0.26 and 0.06 respectively in summer season, 0.31 and 0.05 respectively in rai...

Measurement of radon is very important in dwellings because of its radiological impact on public health. Radon contributes more than half of the total ionizing radiation dose. It is known from the recent surveys in many countries that radon is the second cause of lungs cancer after smoking. In this context, we have measured radon ( 222 Rn) concentration in different dwellings of Kathmandu valle...