论文标题
Bremsstrahlung在低能的高贵气体上
Bremsstrahlung on noble gases at low energies
论文作者
论文摘要
对Argon和Xenon上非层状电子散射的Bremsstrahung光谱进行了详细分析。结果表明，用于描述Bremsstrahung光谱的大概公式可导致预测与确切结果显着不同。在极限中，当光子频率趋于零时，给出了一个与原子上电子散射的传输横截面之间的关系的严格证明。此证明不需要关于散射阶段对能量的依赖性的任何假设。对于低于发光阈值低的电子能量，这表明对确切公式获得的许多辐射光子的预测与可用的实验数据非常吻合。
A detailed analysis of the bremsstrahlung spectrum at nonrelativistic electron scattering on argon and xenon is carried out. It is shown that the approximate formulas widely used for the description of bremsstrahlung spectra lead to predictions that significantly differ from the exact results. In the limit when the photon frequency tends to zero, a rigorous proof of the relationship between the spectrum of the bremsstrahlung with a transport cross section of electron scattering on an atom is given. This proof does not require any assumptions about the dependence of the scattering phases on energy. For electron energies lower than the luminescence threshold, it is shown that the predictions for a number of radiated photons obtained by the exact formula are in good agreement with the available experimental data.
