When all the energy of the impinging electrons is turned into X-rays, as would occurif the electrons transferred all their energy in one collision, the wavelength of the emittedphotons is the shortest attainable. This is termed the minimum l or lmin . The radiationwith the highest energy (and therefore the shortest wavelength) is deduced as follows.When all the energy of the electrons is converted to radiant energy, then the energy ofthe electrons equals the energy of the radiation. The energy of the radiation is given byE ¼ hn, whereas the energy of the electrons is given by E ¼ eV. When they are equal,hn ¼ eV, where e is the charge of the electron; V, the applied voltage; and n, the frequencyof the radiation. But:
đang được dịch, vui lòng đợi..
