electronhydrogen-like atomparabolic coordinatesFor the first time, electron transitions in a hydrogen-like atom with changes in the spatial dimension D = 3 -> D ' = 1, 2 and energy of its state accompanied by photon emission are considered. Similar conversions of some atoms have already been...
The vast majority of radiation treatments for cancerous tumors are given using electron linacs that provide both electrons and photons at several energies... AJ Lennox - 《Radiation Physics & Chemistry》 被引量: 29发表: 2001年 Solvent Effects on n →σ * Transitions, Hydrogen Bonding between...
A semi-classical impact parameter treatment with a cut-off is used to estimate the cross sections for electron-impact-induced transitions between sets of levels of principal quantum numbers n and n' (n' > n) in atomic hydrogen. The results are in closer accord at moderate and low energies ...
Energy-changing electron-hydrogen atom collisions are crucial to regulating the energy balance in astrophysical and laboratory plasmas and relevant to the formation of stellar atmospheres, recombination in H-II clouds, primordial recombination, three-body recombination and heating in ultracold and fusion pl...
For the hydrogen atom, Z = 1. The electrical force between a nucleus of charge Ze separated by a distance r from an electron of charge − e has magnitude (1)FE=KZe2r2, where K is a constant that for SI units has the value (2)K=14πɛ0, where ɛ0 is the electric ...
Calculate the change in energy of an electron in a hydrogen atom that transitions from n = 4 to n = 5. Use RH = 2.179 x 10-18 J for the Rydberg constant. Calculate the energy of an electron in the n = 4 level of a hydrogen atom...
What is the wavelength of light emitted when a hydrogen atom makes a transition from n = 3 to n = 1? For the hydrogen emission spectrum, what is the wavelength of light emitted when an electron transitions from the n=4 to n=1 level? (a)...
for unambiguous detection of elemental compositions of materials under investigation. For example, the energy of a specificelectron transitionof iron will be unique to only iron as would similar transitions for cesium or chromium or the rest of the elements. At times, a particular technique may ...
The differential cross sections for excitation of the $n=2$ state of atomic hydrogen by the impact of electrons with energies of 54, 100, 136, and 200 eV are calculated in the distorted-wave approximation with exchange included. Cross sections for excitation of the $2{s}_{ rac{1}{2}}...
We report the derivation of an analytical expression of the one-photon transition amplitude for free-free transitions occurring in the course of the collis... A.,Dubois,A.,... - 《Physical Review A》 被引量: 54发表: 1986年 Theory of electron-hydrogen-atom collisions in the presence of a...