New simple empirical formulae for the total stopping power for electrons and positrons in matter have been derived from Wilson's theory. The formulae are valid for electrons and positrons in the energy region from 5 to 1000 MeV in absorbers of atomic number from Z = 1 to 92. Values of...
The presented formulae yield good approximate values of the total stopping power for electrons and positrons in matter within an accuracy of 卤 10%.doi:10.1016/0168-583X(86)90220-XP.B. PalV.P. VarshneyD.K. GuptaElsevier B.V.Nuclear Inst & Methods in Physics Research B...
reaction for 20′ in boiling o-dichlorobenzene. Intrinsic viscosity measurement in o-dichlorobenzene at 130 °C provided values of 2.50 dL/g and 1.65 dL/g for P1 and P2, respectively. The1H-NMR spectrum of P1 and P2 (Figs.S2,S3) are consistent with the expected formula. Terminal groups a...
Thus, the permittivity parallel to the unit vector n and perpendicular to the unit vector n of the gold nanorods/LC hybrid can be derived from the Maxwell Garnett formula (Eq. 6)34: ( ( ) )ε⊥, = ε⊥(L,C) 1 + p εg − ε⊥(L,C) ε⊥(L,C) + ...
Left-upper (black arrows) and right-upper (red arrows) indicate annihilations in the space free of electrons for para-positronium and ortho-positronium, respectively. Annihilation of positronium through the interaction with the electron from the surrounding molecule is shown in the left-lower ...
As part of a continuing series of investigations, total scattering cross sections have been measured in the same apparatus for positrons and electrons coll... Kwan,C.K,Hsieh,... - Phys. Rev. A; (United States) 被引量: 85发表: 1983年 Energy dependence of the total cross section for ele...
We have developed simple wave functions for two- and three-electron atoms and ions, which have the correct structure when one of the electrons is far away,... SH Patil - 《European Physical Journal D Atomic Molecular & Optical Physics》 被引量: 10发表: 1999年 Total cross sections for cha...
Irradiation of light with a wavelength of less than 400 nm on TiO2 forms an electron–hole pair on the surface, which reacts with the absorbance material on the surface to cause a redox reaction [15,16,17,18,19,20,21,22,23,24]. The electrons are combined with the oxygen molecules to...
As the temperature increased, more electrons within the gallium oxide material gained energy, transitioning from the valence band to the conduction band to participate in conduction; simultaneously, the ionizing damage caused by irradiation increased with the accumulation of irradiation dose. These two ...
it should be borne in mind that AO-activity assays deal with the kinetics of a reaction and measure the reaction rate, while AO-capacity assays mainly concentrate on the thermodynamic conversion and measure the number of electrons or radicals donated or quenched, respectively, by a given antioxida...