An electron (rest mass = 0.511 MeV/c^2) has a total energy of 10.00 MeV. What is the speed of this electron? What is the speed of an electron when its kinetic energy is equal to 8 times its rest energy? What is the speed of an electron with kinetic energy 810 ...
由能量守恒有：E=E1+E0-E2，两边平方得E^2=E1^2+E0^2+2*E1*E0+E2^2-2*E1*E2-2*E0*E2 代入E^2= E0^2+P^2*c^2，E1^2=P1^2*c^2，E2^2=P2^2*c^2整理得 P^2=P1^2+2*P1*E0/c+P2^2-2*P1*P2-2*P2*E0/c (2)又E1^2=P1^2*c^2=(20GeV)^2，E0=0.938Ge...
If a particle has kinetic energy, K = 60 MeV when its momentum magnitude, p = 100 MeV/c, what is the ratio m/m_e of its mass to the electron mass? What is the kinetic energy of an electron that has the same momentum as a 1.33 MeV Co-60 gamma-ray? A...
百度试题 结果1 题目2. An electron of 10 eV kinetic energy will travel the distance through an electric field 0.25 N/ C: (4)(1)2.5m(2)20 m(3)4m(4)40m 相关知识点: 试题来源: 解析 (4) 反馈 收藏
The electron impact excitation cross section for theX1Σ+g→a1Πgtransition in N2has been measured from 13 to 100 eV by an inelastic electron scattering technique. The cross section varies from a maximum value of 3.6×1017cm2between 15 and 18 eV to 5.2×1018cm2at 100 eV. The incident el...
aElectron volt (eV). A convenient unit of energy for atomic and subatomic systems. It is equivalent to the energy acquired by an electron when it falls through an electric potential of 1 volt. 电子伏特 (eV)。 能量一个方便单位为原子和亚原子的系统。 当它通过1伏特时,电潜力下跌它与电子获取...
This paper presents results of measurements of the electron energy distribution function (EEDF) in the range 0 - 40 eV, and the electron density and the space potential for the helium plasma of a longitudinal discharge in a hollow cathode as used for He-inert gas and He-metal vapour lasers...
observed whenEb/Er≥2.2[38, 39]. In practice, time-resolved spectroscopy of lead sulfide,selenide, and telluride QDs has shown MEG thresholds in the rangeEb/Er=2.7–3.0[40–43]. More precisely, the efficiency of MEG has been defined in terms of the QY at a given photon energy,hν[44...
80 to 500 eV/ A3480D Atomic excitation and ionization by electron impact/ electron volt energy 8.0E+01 to 5.0E+02 eV / He/elThe second-order Born approximation (SBA) has been used to calculate the differential cross sections (DCS) and some electron-photon angular correlation parameters for...
Study of the transfer ionization process by observing the electron cusp in 100-300 keV He2++ He collisions Cusp-electron emission in He2+ on He collisions has been investigated in the energy range 100-300?keV. By detecting the electrons in coincidence with the c... L Sarkadi,L Lugosi,K...