The contributions of different radiation mechanisms to the diffuse γ-ray emission of the galactic disk are studied in a broad energy region from 104 to 1014 eV. Our analysis shows that at energies between 1 and 100 MeV the radiation is dominated by the bremsstrahlung of relatively low energy, typically less than 1 GeV electrons, but with a non-negligible contribution from the inverse Compton (I...

During the past decay many experimental configurations to improve yield of hydrogen by electrolysis. These attempts include tests different materials for electrodes. This study proposes use γ-radiation waste sources nuclear reactors. The related configuration can be reduced boxes filled with water exposed ionizing radiation and capacitors as electrodes well-known in other technical disciplines....

Hypersensitivity to radiation exposure has been suggested to be a risk factor for the development of several malignancies, but not including gastric cancer. In this case-control study, radiation sensitivity as measured by chromatid breaks per cell (b/c) was examined in cultured peripheral blood lymphocytes (PBLs) from 517 patients with gastric cancer and 525 healthy controls. Our results showed...

Ionizing radiation causes biological damage that leads to severe health effects. However, the effects and subsequent health implications caused by exposure to low-dose radiation are unclear. The objective of this study was to determine phosphoprotein profiles in normal human fibroblast cell lines in response to low-dose and high-dose γ-radiation. We examined the cellular response in MRC-5 cells...

Cosmic ray protons interacting with gas at the mean density of the interstellar medium in starburst galaxies lose energy rapidly via inelastic collisions with ambient nuclei. The resulting pions produce secondary electrons and positrons, high-energy neutrinos, and γ-ray photons. We estimate the cumulative γ-ray emission from starburst galaxies and find a specific intensity at GeV energies of νI...

BACKGROUND The effect of low dose radiation on immune system is shown. Ionizing radiation can affect cytokine production and polarization of T helper cells. OBJECTIVE The current study focused on ionizing radiation in Ukrainian children residing in a contaminated area with clinical irritable bowel syndrome. METHOD Our study included 75 rural children population aged 4-18 yrs, who lived in a...

We consider the radiative acceleration to relativistic bulk velocities of a cold, optically thin plasma which is exposed to an external source of γ-rays. The flow is driven by radiative momentum input to the gas, the accelerating force being due to Compton scattering in the relativistic Klein-Nishina limit. The bulk Lorentz factor of the plasma, Γ, derived as a function of distance from the rad...

Development of machine learning methods for spectrum processing is one the most promising ways gamma- spectrometry automation and accuracy improvement. Effectiveness fully connected convolution neural networks quantitative γ-spectrometry analysis using scintillation detector NaI(Tl) lead shielding presented in article. Semi-synthetic spectrums were used models training; semi-synthetic are chann...

We show that the relativistic wind of the Crab pulsar, which is commonly thought to be invisible in the region upstream of the termination shock at r ≤ rS ∼ 0.1 pc, in fact could be directly observed through its inverse Compton (IC) γ-ray emission. This radiation is caused by illumination of the wind by low-frequency photons emitted by the pulsar, and consists of two, pulsed and unpulsed, compo...

The energy source of a pulsar's non-thermal emission is the rotational energy loss of the neutron star. The rotational energy of the neutron star is transformed into the pulsar radiation by a long sequence of processes. The processes of this sequence are discussed. 1. Introduction The current sample of radio pulsars contains about six hundred pulsars (e.g., Taylor et al. 1993). The radio lumino...