Cross sections of K-shell ionization by electron impact, measured from threshold to 100 keV, for Au and Bi
作者： JM Fernández-Varea , Viktor Jahnke , NL Maidana , AA Malafronte , Vito Roberto Vanin
DOI: 10.1088/0953-4075/47/15/155201
关键词:
摘要: We have measured cross sections for the ionization of K shell by electrons with energies from respective thresholds up to 100 keV, Au and Bi. The experimental values are obtained dividing number counts in K? peak an energy interval near tip bremsstrahlung continuum, multiplying this ratio theoretical estimate emission towards detector interval. Although such a procedure has already been described literature, here it is implemented avoiding some simplifications made earlier works. Our sections, which first ones be reported atoms 47$ SRC=http://ej.iop.org/images/0953-4075/47/15/155201/jpb497279ieqn1.gif/> close threshold, reasonable agreement predictions semirelativistic distorted-wave Born approximation. Hippler?s plane-wave approximation corrections Coulomb exchange effects yields that closer data than those evaluated relativistic binary-encounter-Bethe model.
harvard.edu
sci-hub.se 参考文章(60)
David Bote, Francesc Salvat, Calculations of inner-shell ionization by electron impact with the distorted-wave and plane-wave Born approximations Physical Review A. ,vol. 77, pp. 042701- ,(2008) , 10.1103/PHYSREVA.77.042701
Leia Stirling, Karen Willcox, Philip Ferguson, Dava Newman, Kinetics and Kinematics for Translational Motions in Microgravity During Parabolic Flight Aviation, Space, and Environmental Medicine. ,vol. 80, pp. 522- 531 ,(2009) , 10.3357/ASEM.2356.2009
R. Rejoub, B. G. Lindsay, R. F. Stebbings, Determination of the absolute partial and total cross sections for electron-impact ionization of the rare gases Physical Review A. ,vol. 65, pp. 042713- ,(2002) , 10.1103/PHYSREVA.65.042713
Z An, M.T Liu, Y.C Fu, Z.M Luo, C.H Tang, C.M Li, B.H Zhang, Y.J Tang, Some recent progress on the measurement of K-shell ionization cross-sections of atoms by electron impact: Application to Ti and Cr elements Nuclear Instruments & Methods in Physics Research Section B-beam Interactions With Materials and Atoms. ,vol. 207, pp. 268- 274 ,(2003) , 10.1016/S0168-583X(03)00961-3
Lynn Kissel, C.A. Quarles, R.H. Pratt, Shape functions for atomic-field bremsstrahlung from electrons of kinetic energy 1–500 keV on selected neutral atoms 1 ≤ Z ≤ 92 Atomic Data and Nuclear Data Tables. ,vol. 28, pp. 381- 460 ,(1983) , 10.1016/0092-640X(83)90001-3
J P Santos, F Parente, Y-K Kim, Cross sections for K-shell ionization of atoms by electron impact Journal of Physics B. ,vol. 36, pp. 4211- 4224 ,(2003) , 10.1088/0953-4075/36/21/002
Yong-Ki Kim, José Paulo Santos, Fernando Parente, Extension of the binary-encounter-dipole model to relativistic incident electrons Physical Review A. ,vol. 62, pp. 052710- ,(2000) , 10.1103/PHYSREVA.62.052710
Qingfeng Wu, Qiang Li, Xiaodong Jin, Xinguo Liu, Zhongying Dai, Bystander effect in human hepatoma HepG2 cells caused by medium transfers at different times after high-LET carbon ion irradiation Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms. ,vol. 269, pp. 153- 158 ,(2011) , 10.1016/J.NIMB.2010.10.012
MITIO INOKUTI, Inelastic Collisions of Fast Charged Particles with Atoms and Molecules-The Bethe Theory Revisited Reviews of Modern Physics. ,vol. 43, pp. 297- 347 ,(1971) , 10.1103/REVMODPHYS.43.297
M. O. Krause, Atomic radiative and radiationless yields for K and L shells Journal of Physical and Chemical Reference Data. ,vol. 8, pp. 307- 327 ,(1979) , 10.1063/1.555594