Beam induced compositional changes in rbs analysis of polymers

F. Namavar; J. I. Budnick

doi:10.1016/0168-583X(86)90304-6

Beam induced compositional changes in rbs analysis of polymers

F. Namavar, J. I. Budnick

Research output: Contribution to journal › Article › peer-review

15 Scopus citations

Abstract

In this paper we address the question of whether Rutherford backscattering (RBS) can be applied to the study of polymers in such a way that experimental results will provide accurate information on the depth composition of the polymer. Our scanned-beam RBS results suggest that, for room temperature analysis of polyethylene terephthalate (PET), there is a fluence limit below which beam induced compositional changes can be neglected. Cooling to the sample of LN₂ temperature during RBS analysis causes the oxygen to carbon concentration ratio to remain unchanged, apparently because no significant outdiffusion of beam generated gas molecules can occur at LN₂ temperature.

Original language	English (US)
Pages (from-to)	285-287
Number of pages	3
Journal	Nuclear Inst. and Methods in Physics Research, B
Volume	15
Issue number	1-6
DOIs	https://doi.org/10.1016/0168-583X(86)90304-6
State	Published - Apr 1 1986
Externally published	Yes

ASJC Scopus subject areas

Nuclear and High Energy Physics
Instrumentation

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AB - In this paper we address the question of whether Rutherford backscattering (RBS) can be applied to the study of polymers in such a way that experimental results will provide accurate information on the depth composition of the polymer. Our scanned-beam RBS results suggest that, for room temperature analysis of polyethylene terephthalate (PET), there is a fluence limit below which beam induced compositional changes can be neglected. Cooling to the sample of LN2 temperature during RBS analysis causes the oxygen to carbon concentration ratio to remain unchanged, apparently because no significant outdiffusion of beam generated gas molecules can occur at LN2 temperature.

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Beam induced compositional changes in rbs analysis of polymers

Abstract

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