Chin. Phys. Lett.  1995, Vol. 12 Issue (7): 389-392    DOI:
Original Articles |
Impact-Parameter Dependence of the Electronic Energy Loss of Protons in Solids
WANG Nengping;HUO Yukun;PAN Zhengying;SHAO Qiyun
Department of Physics 2, Fudan University, Shanghai 200433
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WANG Nengping, HUO Yukun, PAN Zhengying et al  1995 Chin. Phys. Lett. 12 389-392
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Abstract We calculate the electronic energy loss of the low- and intermidiate-energy proton in collision with a solid atom as a function of the impact-parameter by using the linear-response dielectric theory, the semiclassical approximation and local electron density approximation. The correlation and exchange interaction of the electron gas in solids is taken into consideration by using a local-field-correction dielectric function. With the formalism we also calculate the electronic stopping cross section of protons in solids.
Keywords: 34.50.Bw      79.20.Nc      79.20.Rf     
Published: 01 July 1995
PACS:  34.50.Bw (Energy loss and stopping power)  
  79.20.Rf (Atomic, molecular, and ion beam impact and interactions with surfaces)  
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WANG Nengping
HUO Yukun
PAN Zhengying
SHAO Qiyun
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