What are gamma rays made up of? Gamma Rays: All the atoms are composed of the nucleus with protons and neutrons as part of the nucleus. The nucleus may sometime get unstable due to some reason and achieve stability after undergoing a radioactive decay. This decay is of three types, alpha...
Terrestrial gamma-ray flashes (TGFs) are the source of the highest-energy nonanthropogenic photons produced on Earth. Associated with thunder-storms - and in fact, with individual lightning discharges - they are presumed to be the bremsstrahlung produced when relativistic electrons, accelerated by ...
A joint research team made up of Chinese and Japanese scientists has discovered the highest energy cosmic gamma rays ever observed from an observatory in Tibet, opening a new window to explore the extreme universe.The energy of the gamma rays is as high as 450 TeV, equivalent to 45 billion ...
An approximate calculation is made of the effective area of pinhole collimators allowing for penetration of the metal by gamma -rays of two energies (364 and 140 keV). The particular case of normally-incident rays is treated without approximation. At 364 keV the performance even of heavy alloy...
. However, it was shown in the 1990ies that even x-rays can be bent by lenses made ofberylliumor carbon. “I was very impressed by the development of lenses for x-rays”, Prof. Habs remembers. “Therefore I asked myself whether it was possible to create similar tools for gamma-rays....
. However, it was shown in the 1990ies that even x-rays can be bent by lenses made ofberylliumor carbon. “I was very impressed by the development of lenses for x-rays”, Prof. Habs remembers. “Therefore I asked myself whether it was possible to create similar tools for gamma-rays....
BEIJING, July 3 (Xinhua) -- A joint research team made up of Chinese and Japanese scientists has discovered the highest energy cosmic gamma rays ever observed from an observatory in Tibet, opening a new window to explore the extreme universe. The energy of the gamma rays is as high as 450...
The recent advancement of high-intensity lasers has made all-optical Compton scattering become a promising way to produce ultra-short brilliant $\\gamma$-rays in an ultra-compact system. However, so far achieved Compton $\\gamma$-ray sou... T Huang,CM Kim,C Zhou,... - 《New Journal of...
The recent discovery byFermi/LAT of high-energy (E> 100MeV) γ rays from Narrow-Line Seyfert 1 Galaxies (NLS1s) made evident the existence of a third class... L Foschini - American Institute of Physics 被引量: 9发表: 2012年 Intranight optical variability of γ-ray-loud narrow-line Sey...
Based on the properties of gamma rays, the mechanism of the proposed pretreatment can be concluded as follows: 1. The gamma ray can easily penetrate the ligno-cellulose structure, and with the high energy, the structure of lignin can be modified, and the crystal regions of cellulose can be ...