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Mass fractionation of carbon and hydrogen secondary ions upon Cs+ bombardment of organic materials
 

Summary: Mass fractionation of carbon and hydrogen secondary ions upon Cs+
and O2
+
bombardment of organic materials
Shane E. Hartona
Department of Materials Science and Engineering, North Carolina State University, Raleigh,
North Carolina 27695
Zhengmao Zhu and Frederick A. Stevie
Analytical Instrumentation Facility, North Carolina State University, Raleigh, North Carolina 27695
Dieter P. Griffis
Department of Materials Science and Engineering, North Carolina State University, Raleigh, North
Carolina 27695 and Analytical Instrumentation Facility, North Carolina State University, Raleigh,
North Carolina 27695
Harald Ade
Department of Physics, North Carolina State University, Raleigh, North Carolina 27695
Received 17 January 2007; accepted 27 February 2007; published 2 April 2007
A phenomenon known as mass fractionation has been probed in organic materials using secondary
ion mass spectrometry SIMS . Mass fractionation occurs because two isotopes of a particular
species i.e., identical number of protons, but different number of neutrons do not have identical
secondary ion yields in a constant chemical environment. Two primary ion probes, Cs+

  

Source: Ade, Harald W.- Department of Physics, North Carolina State University

 

Collections: Physics