Background: the supplementation of natural antioxidants such plant flavonoids may counteract the deleterious actions of gamma-irradiation and iron overload. Material and Methods: the protective effect of naringin (NIN) against kidney injury induced by γ-irradiation (IRR) (6.5 Gy) and/or iron dextran (ID) (50 mg/kg. b. w) has been studied in rats given 80 mg/kg b.w of NIN for 14 days before, and...

We study the correlation of photon and charged lepton pseudorapidities, η(γ) and η(ℓ), ℓ = e, µ, in p¯ p → W ± γ + X → ℓ ± p / T γ + X at the Tevatron. In the Standard Model, the ∆η(γ, ℓ) = η(γ) − η(ℓ) differential cross section is found to exhibit a pronounced dip at ∆η(γ, ℓ) ≈ ∓0.4, which originates from the radiation zero present in q ¯ q ′ → W γ. The sensitivity of the ∆η(γ, ℓ) distribution...

Risk of colorectal cancer (CRC) after exposure to low linear energy transfer (low-LET) radiation such as γ-ray is highlighted by the studies in atom bomb survivors. On the contrary, CRC risk prediction after exposure to high-LET cosmic heavy ion radiation exposure is hindered due to scarcity of in vivo data. Therefore, intestinal tumor frequency, size, cluster, and grade were studied in APC(Min...

The optical and surface-energy properties of polyethylene (PE) subjected to γ-irradiation post-radiation, high temperature, shear grinding are presented. Comparison the IR spectra initial γ-irradiated PE shows that oxygen-containing groups unsaturated bonds in polymer macromolecules formed accumulate during their radiolysis air, increasing with dose. A redistribution products radiation-chemical...

background: the potential hazards of exposure to radiation from radon have been of great concern worldwide, as it is associated with an increased risk of lung cancer. radon (222rn) and its progeny are the main sources of radioactivity in the environment. the half-life of 222rn (3.82 days) is long enough for it to diffuse into and build up in homes. 220rn or thoron from the 232th series, and 219...

background: oxidative stress plays an important role in the pathogenesis and progression of γ-irradiation-induced cellular damage, lung is a radiosensitive organ and its damage is a dose-limiting factor in radiotherapy. the administration of dietary antioxidants has been suggested to protect against the succeeding tissue damage. the present study aimed to evaluate the radioprotective efficacy o...

Tissue consequences of radiation exposure are dependent on radiation quality and high linear energy transfer (high-LET) radiation, such as heavy ions in space is known to deposit higher energy in tissues and cause greater damage than low-LET γ radiation. While radiation exposure has been linked to intestinal pathologies, there are very few studies on long-term effects of radiation, fewer involv...

Two massive binaries, Cyg X-3 and LSI 303+61, are inside the error boxes of γ-ray sources detected by the Compton GRO. If somewhere inside such binary systems are injected very high energy (VHE) γ-rays, as suggested by some Cherenkov observations, they may initiate the inverse Compton e± pair cascade in the soft radiation of a massive companion, and the detected high energy γ-ray emission may b...

Thin films of Tellurium dioxide (TeO2) were investigated for γ-radiation dosimetry purposes. Samples were fabricated using thin film vapour deposition technique. Thin films of TeO2 were exposed to a 60Co γ-radiation source at a dose rate of 6 Gy/min at room temperature. Absorption spectra for TeO2 films were recorded and the values of the optical band gap and energies of the localized states fo...

The radiation environment in deep space, where astronauts are behind the shelter provided by the Earth’s magnetosphere, is a major health concern. Galactic cosmic rays (GCR) and solar particle events (SPE) are two basic sources of space radiation in the solar system. The health risks of exposure to high levels of space radiation can be observed either as acute and delayed effects. Zhang et al. ...