WebWhat does PHOTODISINTEGRATION mean? Information and translations of PHOTODISINTEGRATION in the most comprehensive dictionary definitions resource on … Web"photodissociation"中文翻译 n. 1.【化学】光致离解。 2.【物理学】光致蜕变 (＝photodisintegration)。 "photodisc eyewire- ambience"中文翻译 图片素材 金属环境篇 "photodissociation laser"中文翻译 光离解激光器; 光致离解激光器 "photodirect lithography"中文翻译 照相平版印刷术 ...
photodisintegration是什么意思,photodisintegration的解释 - 英汉词 …
WebPhotodisintegration is a physical process in which extremely high energy gamma rays interact with an atomic nucleus and cause it to enter an excited state, which immediately decays into two or more daughter nuclei. A simple example is when a single proton or neutron is effectively knocked out of the nucleus by the incoming gamma ray, and an … WebIn low-metallicity stars exceeding ~250 M S, the collapse is so rapid, and the rise in core temperature so great, that an increasingly-large fraction of the photons produced have energies high enough to cause photodisintegration (where an extremely-high-energy photon is absorbed by an atomic nucleus, causing the nucleus to break apart into two ... css p bold
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Webphotodisintegration: [-disin′təgrā′shən] the emission of a nuclear fragment caused by the interaction of a high-energy x-ray with an atomic nucleus. It may occur when an x-ray … WebJan 27, 2012 · The two-body photodisintegration cross section of (4)He into a proton and triton was measured with monoenergetic photon beams in 0.5 MeV energy steps between 22 and 30 MeV. High-pressure (4)He-Xe gas scintillators of various (4)He/Xe ratios served as targets and detectors. Pure Xe gas scintillators were used for background studies. Photodisintegration (also called phototransmutation, or a photonuclear reaction) is a nuclear process in which an atomic nucleus absorbs a high-energy gamma ray, enters an excited state, and immediately decays by emitting a subatomic particle. The incoming gamma ray effectively knocks one or more … See more A photon carrying 2.22 MeV or more energy can photodisintegrate an atom of deuterium: 1D + γ → 1H + n James Chadwick and Maurice Goldhaber used this reaction to … See more A photon carrying 1.67 MeV or more energy can photodisintegrate an atom of beryllium-9 (100% of natural beryllium, its only stable isotope): See more Terrestrial lightnings produce high-speed electrons that create bursts of gamma-rays as bremsstrahlung. The energy of these rays is sometimes … See more • Pair-instability supernova • Silicon-burning process See more In explosions of very large stars (250 or more solar masses), photodisintegration is a major factor in the supernova event. As the star reaches the end of its life, it reaches temperatures and pressures where photodisintegration's energy-absorbing effects … See more Photofission is a similar but distinct process, in which a nucleus, after absorbing a gamma ray, undergoes nuclear fission (splits … See more cssp behavioral health