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 … Web中国两弹之父是谁-邓稼先1929年邓稼先9月入北平武定侯小学，至3年级。1932年邓档扒稼先入北平四存小学四年级，至毕业。1935年邓稼先11岁，入北平志成中学，读一年级。1936年邓稼先12岁，插班考入北平崇德中学初...
Nondestructive Evaluation Physics : X-Ray
WebPhotodissociation, photolysis, photodecomposition, or photofragmentation is a chemical reaction in which molecules of a chemical compound are broken down by photons.It is defined as the interaction of one or more photons with one target molecule. Photodissociation is not limited to visible light.Any photon with sufficient energy can … WebJul 25, 2014 · Comparisons with recent theoretical calculations of the total photodisintegration cross section using various nucleon-nucleon interactions are inconclusive because of the large uncertainty in the cross sections for reactions channels that are not measured. We hope that the precision of our results for specific reaction … iready lexia
Photodisintegration cross section of the reaction (4)He(γ,p)(3)H ...
WebJun 1, 1996 · The two-body photodisintegration of {sup 4}He into a proton and a triton has been studied using the CEBAF Large-Acceptance Spectrometer (CLAS) at the Thomas Jefferson National Accelerator Facility. Real photons produced with the Hall-B bremsstrahlung-tagging system in the energy range from 0.35 to 1.55 GeV were incident … 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 http://www.ichacha.net/photodisintegration.html order from next without an account