1970 年 29 巻 6 号 p. 1551-1556
Multiple scattering of protons (0.407, 0.851 and 1.45 MeV) and nitrogen ions (1.28 and 2.29 MeV) on copper has been studied. The observed angular distributions are compared with Molière’s theory and some deviations are found. However, these can be diminished by introducing the effective atomic number, zeff, of incident ions. The appropriate zeff’s are estimated as 0.87, 0.90 and 0.94 for the protons, respectively. The values 5.2 and 6.2 are obtained for the respective nitrogen ions. The effective atomic number is attributed to the electron screening of slow ion during the collision process.
この記事は最新の被引用情報を取得できません。