Calculation and modeling of Th distribution in Gorgan Bay in the Caspian Sea.

The aim of this study was to obtain a relationship that can estimate the emission pattern of Th in calm and low pressure aquatic environments such as Gorgan Bay. The Th emission pattern in sediments near the outlets of Gaz and Qarasu rivers using experimental data measured by gamma radiation spectrometry using high purity germanium (HPGe) detector and quasi-experimental model recommended by IAEA 2001 as well as the concentric circular diffusion model proposed by authors was investigated. The mean specific activity of Th in sediment samples for Gaz Block and Qarasu Block is 30.

Dosimetric characterization of a Nickel complex for routine use in radiation processing.

In this paper, the dosimetric characteristics of a colored metal complex solution were investigated. Nickel nitrate hexahydrate and 1,5-diphenylcarbazone were made as a liquid solution chemical dosimeter at three concentrations with an inexpensive and simple synthesis for use in gamma irradiation in the range of 20-1000 Gy. The maximum absorbance was observed spectrophotometrically at a maximum wavelength of 530 nm.