Gamma rays are the mostenergeticform ofelectromagneticradiation. By convention, every photon with energy above 100keV (ν≈1019Hz) is considered to be a gamma ray. This significant chunk of theelectromagnetic spectrumcan be further subdivided into low energy (LE), high energy (HE), very high ...
The radiation shielding parameters have been found to vary with gamma-ray energy and effective atomic number for these organic compounds under present investigations.doi:10.1016/j.cjph.2020.03.009Mohinder SinghAkash TondonBhajan SinghB.S. Sandhu...
8 Absorption of the gamma-ray emission on the radiation field of the photosphere and collision with it. Assumed parameters: vsh = 4500 km s−1, Rph = 200 R. Temperature of the photosphere is Tph = 10780 K, 9490 K, 8460 K and 7680 K for the time after the nova onset: 1 d (...
Kanbach G., Slowikowska A., Kellner S., Steinle H., 2005a, in “Astrophysical Sources of High Energy Particles and Radiation”, eds. T. Bulik et al., AIP Conf. Proc. 801, 306 Kanbach, G., Schönfelder, V., Zehnder, A., 2010, in “Observing Photons in Space”, eds. M.C...
The accretion flow onto the black hole mainly produces radiation in the visible and ultraviolet band (forming the so-called 'big blue bump' in the source spectrum). The energy of the visible–ultraviolet photons, 1–30 eV, is too low to affect the source flux in the observed range of γ...
Monochromatic γ-radiation emitted by a relativistic electron moving in a carbon nanotube We consider the spontaneous emission of a relativistic electron moving inside a single-layer carbon nanotube and interacting without delay with the screene... VV Klimov,VS Letokhov - 《Physics Letters A》 被...
However, from the perspective of plan evaluation in this paper, large DCGS made us make a “low evaluation” for the patient’s radiation dose, and the patient’s actual radiation dose was larger than the dose we “saw”. The 3Dgamma analysis and bio-mathematical model can be used to ...
With the prompt slewing capability of the X-ray and UV-optical telescopes onboard the Swift mission and with the gamma-ray large area telescope onboard the
The γ-radiation of a simple radionuclide having a unique γ-energy does not produce a sharp spectral line, but a peak, owing to the statistical nature of the interaction of γ-rays with matter. An NaI(Tl) scintillation detector spectrum for 137Cs is shown in Figure 4. The peak at ...
γ-Rays represent electromagnetic radiation emitted from excited atomic nuclei of unstable atoms, the so-called radionuclides, as an integral part of the process whereby the nucleus rearranges itself into a state of lower excitation (i.e., lower energy content). A γ-ray is a packet of electr...