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Gamma Dose Articles & Analysis
54 articles found
The IAEA actively encourages host countries to deploy radiological detection and monitoring capabilities.At the heart of the system is the GammaTRACER XL2 probe, a field-proven instrument that provides continuous, real-time measurement and recording of environmental gamma dose rates. It is fully autonomous, powered by solar energy with an integrated rechargeable ...
NaDCC represented a synergistic antifungal activity when it was combined with gamma irradiation in specific doses against Penicillium expansum on pear fruits (Jeong, 2015 )26. ...
Sunkye Space Micro Connector & Nano Connector Series Environment Performance Vibration 10Hz-2000Hz 294m2/s Random Vibration Power Power spectral density 0.6G /Hz, root mean 2 square value of total acceleration 28.4G Shock 980m/s2 6ms Salt spray 96h Humidity 240h Thrmal shock -55 to +175°C Environment temperature range -55 to +175°C Magnetic permeability 200 gamma ...
The effects of pH, dose of gamma irradiation and concentration of dye were examined and their interaction were also established based on their response. ...
This paper describes an experimental study of dose uniformity within a container used for products irradiation, in the gamma irradiation facility at Nuclear Technology Development Center (CDTN). ...
The paper presents fully operational air pollution prediction and doses calculation system working in 2/24/7/365 mode for more than a decade in Krško Nuclear Power Plant (NPP). ...
A study was carried out on the performance of some handheld dosimeters that are used for measuring ambient gamma dose rates. A CsI scintillation–based and two GM–based dosimeters were used to measure the absorbed dose rates in an indoor environment, inside a lead shield, on different floors of a building, in a desert environment and in a boat on ...
Epidemiological studies have shown that moderate and low radiation doses to the heart area may result in an increase in cardiovascular mortality. ...
A survey was carried out to determine the activity concentration of selected radionuclides (238U, 232Th, 40K) by means of gamma–ray spectroscopy using NaI (Tl) detector. From the measured spectra, the mean activity of 238U, 232Th, 40K are 7.13 Bq kg−1, 30.47 Bq kg−1 and 346.06 Bq kg−1, respectively. To evaluate the radiological effects, the absorbed dose rate, ...
Removal of MS2 RNA and infectious MS2 particles was 1.2 and 1.6 log10-units, respectively. Virus reduction by UV and gamma irradiation was determined in laboratory-scale experiments. The reduction of MS2 RNA based on qRT–PCR data was negligible. Reduction of infectious MS2 particles was estimated at 3.0–3.6 log10-units (UV dose up to 400 or 800 ...
The efficient algorithm is based on the assimilation of gamma dose rate measured data in the Lagrangian atmospheric dispersion model DIPCOT and uses variational principles. ...
A large number of 41Ar measurements from a network of environmental gamma detectors are used to evaluate the model under a range of atmospheric stability conditions within the complex terrain area. ...
A network of meteorological stations and GR–150 environmental gamma dose detectors are placed in the complex terrain within a 5 km radius of the site. ...
The biological effects of very low doses of ionising radiation are difficult to assess. We previously observed a delay of death by lymphoma in two different mouse strains continuously irradiated (γ–rays) with a dose rate of 10 cGy year−1. ...
We investigated the effect of caffeine on low dose γ–radiation–induced chromosomal damage in human T–cell leukaemia cells (Jurkat T–cells) and two normal human fibroblast cell lines (AG1522 and GM2149). Low doses of gamma–radiation were found to increase the levels of chromatid gaps and breaks in a dose–dependent manner in both ...
Whole–body exposure of the mice to gamma radiation results in damage to cellular DNA in various tissues, such as brain, bone marrow, blood and intestine, and prior administration of a hydro–alcoholic extract of G. lucidum prevented radiation–induced DNA damage. Administration of the extract prior to whole–body exposure to a lethal dose of gamma ...
The optical properties of CR-39 polymer track detectors irradiated with high Linear Energy Transfer (LET) (alpha particles at energies 3.05 MeV and 4.86 MeV) and followed by low LET (gamma ray irradiation at different doses ranging from 0 to 200 kGy) were investigated. ...
Sesamol (3,4-methylene dioxyphenol) protected mice from adverse effects of whole body gamma-irradiation. Studies indicated that oral administration of sesamol (SM), 1 hour prior to whole body gamma-irradiation (2–6 Gy), significantly protected cellular DNA in various tissues of mice, as evident from alkaline comet assay. Whole body exposure of mice to a ...
exposed to chronic external low doses ?irradiation (equivalent dose of 96.9 ?Sv h?1) mice (cumulative dose of 0.43 Sv). The results obtained showed disturbances in the studied reactions and change of the reactive forms of oxygen and nitrogen following an effect of low doses of radiation. The latter induce significant changes in ...
Here, we investigated X-ray doses ranging from 9 mGy to 2 Gy in three cell lines representative of these radiosensitivity groups. We observed a non-linear dose-dependent increase of the severity of DSB, suggesting a correlation with the phenomenon of hyper-radiosensitivity to low dose; a non-linear dose-dependent increase of ...