Comparative study of MGy dose level γ-radiation effect on FBGs written in different fibres

Effect of MGy dose level γ - radiation on the parameters of FBGs written in a Ge - doped silica fiber

Radiation-resistant WDM Optical Link for Thermonuclear Fusion Reactor Instrumentation

The future International Thermonuclear Experimental Reactor (ITER) is a complex installation that will require permanent monitoring and frequent maintenance operations. The high-gamma dose rates, the high neutron fluence and other radiological hazards call for the use of remotehandled equipment. The management of heavy umbilicals connecting the control systems with the remote tools is therefore...

Radiation-tolerance qualification for maintenance tasks in the future fusion reactor: the FBG radiation tolerance assessment as case study

The radiation-tolerance assessment of components is required before their use in instrumentation links for the future International thermonuclear fusion reactor (ITER). In this paper, we will detail our methodology to find the most suitable components with regard to the specific ITER requirements and to evaluate the radiation-tolerance of components for the ITER instrumentation links. Our appro...

Changes in the Number of Double-Strand DNA Breaks in Chinese Hamster V79 Cells Exposed to γ-Radiation with Different Dose Rates

A comparative investigation of the induction of double-strand DNA breaks (DSBs) in the Chinese hamster V79 cells by γ-radiation at dose rates of 1, 10 and 400 mGy/min (doses ranged from 0.36 to 4.32 Gy) was performed. The acute radiation exposure at a dose rate of 400 mGy/min resulted in the linear dose-dependent increase of the γ-H2AX foci formation. The dose-response curve for the acute expos...

Estimation of radiation dose to the lens of eyes of patients undergoing cranial computed tomography in a teaching Hospital in Osun state, Nigeria

Background: One of the means of assessing dose to patients from Computed tomography (CT) procedure is through the determination of the skin entrance dose (ESD) with the appreciation of the concern that ocular exposure effects from CT scan includes possible induction of cancer and cataract. Due to the relatively more recent introduction of CT scans, little work has been done in this area in the ...