Flow cytometry analysis was used to detect the changes of γH2AX protein expression in human peripheral blood lymphocytes. In the dose-effect study, the expression of γH2AX was detected 1 h after irradiation with 60Co γ-rays at doses of 0, 0.5, 1, 2, 4, and 6 Gy. Blood was cultivated for 0, 1, 2, 4, 6, 12, and 24 h after 4 Gy 60Co γ-rays irradiation for the time-effect study. At the same time, t...

Radio-(60Co), which emits γ rays, has been used worldwide in pest control. The aim of the present study was to analyze the effect of effective-low-power 60Co-γ irradiation on the enzymatic antioxidant system of the citrus red mite Panonychus citri. One day old female adults were exposed to 0.4 kGy 60Co-γ irradiation and on the, 6th h, 1st day, 2nd day, and 5th day post treatment, the mites were...

OBJECTIVES To compare the biological effects of 125I seeds continuous low-dose-rate (CLDR) radiation and 60Co γ-ray high-dose-rate (HDR) radiation on non-small cell lung cancer (NSCLC) cells. MATERIALS AND METHODS A549, H1299 and BEAS-2B cells were exposed to 125I seeds CLDR radiation or 60Co γ-ray HDR radiation. The survival fraction was determined using a colony-forming assay. The cell cycl...

abstract  introduction: recently uses of medium and high energy x-rays has been increased in iran and radiotherapy centers along with a variety of accelerators have been installed in some provinces. in the other hand there is no sufficient skill in designing and making radiotherapy treatment rooms. this study was conducted to evaluate the efficacy of different mixtures of barite concrete for sh...

Passive γ-ray spectroscopy is a useful technique for surveying the radioactive wastes and spent nuclear fuels under decommissioning. However, this method depends on material properties such as activity, density, element, scale, (especially) low-energy γ rays from 235U 239Pu. The γ-decay lines of 134Cs, 137Cs, 60Co, 154Eu occur at greater energies (than those 239Pu), these nuclides provide signi...

The influence of radiation damage on energy resolution, linearity and uniformity of an electromagnetic lead/scintillator calorimeter was studied experimentally with 1–6GeV electrons. Plastic scintillators and wavelength shifter bars were irradiated uniformly with γ rays. Both were identical with those of the ZEUS uranium calorimeter. The attenuation length of the scintillators was determined fr...

Cd1-xFexS (x = 0.03) solid solutions were synthesized and thin films obtained on their base by molecular beam condensation method. It was studied the effect of γ- irradiation surface morphology, growth properties crystal structure films. The characteristics exposed to γ-rays at doses 50, 100 150 kGy from 60Co source characterized XRD, SEM, EDX methods. XRD analysis showed that orientation plane...