Estimation of energy absorption buildup factors of some human tissues at energies relevant to brachytherapy and external beam radiotherapy.

Estimation of energy absorption buildup factors (EABFs) of some human tissues for photon energies commonly used in brachytherapy (BT) and external beam radiotherapy (EBRT). A five parameter geometric progression (G-P) fitting approximation was used to estimate EABF at different energies and penetration depths (up to 20 mfp). MCNP6.

Effects of the external magnetic field and chemical combination on Kbeta/Kalpha X-ray intensity ratios of some nickel and cobalt compounds.

A systematic study of X-ray intensity ratios of the K-series lines was made on compounds of nickel and cobalt to examine the influence of chemical state and 0.6 and 1.2 T external magnetic fields on energy-dispersive X-ray fluorescence analysis.

Determining land use changes by radar-optic fused images and monitoring its environmental impacts in Edremit region of western Turkey.

Rapid and unplanned urbanization and industrialization are the main reasons of environmental problems. If urban growth is not based on resource sustainability criteria and urban plans are not applied, natural and human resources are damaged dramatically. In this study, land use change and urban expansion in Edremit region of Turkey is determined by means of remote sensing techniques between 1971 and 2002.

Distributions of 210Pb around a uraniferous coal-fired power plant in Western Turkey.

In the present study the spatial and the vertical distributions of 210Pb were investigated in the soils around a uranifereous coal fired power plant (CPP) in Yatagan Basin, in Western Turkey. The variation of 226Ra activity along the soil profiles was studied to assess the unsupported 210Pb distribution in the same samples. 226Ra was measured by gamma spectroscopy and 210Pb activities were determined from 210Po activities using radiochemical deposition and alpha spectroscopy.

Monitoring the impacts of urbanization and industrialization on the agricultural land and environment of the Torbali, Izmir region, Turkey.

The aim of this research is to determine agricultural land loss and environmental pollution caused by industrialization and urban sprawl using the Geographical Information System (GIS) and Remote Sensing technique (RS). Remotely sensed data is the most powerful tool for monitoring land use changes and GIS is the best way to store and reproduce various kinds of integrated data. Considering the rapid increase of population the loss of fertile agricultural soils is a very dangerous situation for the future of the country.

Determination of impact of urbanization on agricultural land and wetland land use in Balçovas' delta by remote sensing and GIS technique.

Because of their intense vegetation and the fact that they include areas of coastline, deltas situated in the vicinity of big cities are areas of greet attraction for people who wish to get away from in a crowded city. However, deltas, with their fertile soil and unique flora and fauna, need to be protected. In order for the use of such areas to be planned in a sustainable way by local authorities, there is a need for detailed data about these regions.

Emission probabilities of K X- and gamma-rays following 51Cr and 67Ga decay.

Emission probabilities of K X- and gamma-rays following the decay of 51Cr and 67Ga were precisely measured with a calibrated Si(Li) detector. The photopeak efficiency of the Si(Li) semiconductor detector was determined experimentally for about 4-400 keV energy range by using standard sources. Results of this study have been compared with the theoretical values and other available experimental results in the literature.