Investigation of hydrogen depletion of organic materials upon ion beam irradiation by simultaneous micro-RBS and micro-ERDA techniques

A. Simon, R. Huszank, M. Novák, Z. Pintye

Research output: Contribution to journalArticle

12 Citations (Scopus)

Abstract

Radiation stability investigations in a form of hydrogen depletion of organic materials induced by a focussed 1.6 MeV He+ scanning ion beam within a beam intensity range of 10-50 pA/μm2 is reported. The hydrogen depletion was measured by applying Elastic Recoil Detection Analysis (ERDA) and Rutherford Backscattering Spectrometry (RBS) techniques, simultaneously. H-count rates were measured and further processed as a function of the deposited ion beam fluence. Our results show, that within the deposited fluence range of 1014-1015 ions/cm2 both the Kapton-foil and porphyrin complex (Fe(III)TPP) do not suffer from hydrogen depletion process, indicating only minor chemical structural changes. There is a slight decrease of the hydrogen content of the Mylar-foil while a remarkable loss of hydrogen occurs in case of poly(dimethyl-siloxane) (PDMS) suggesting the degradation of the polymer chain. A full description of our versatile and complex particle detection system for nuclear microprobe applications is also given in the paper.

Original languageEnglish
Pages (from-to)2197-2201
Number of pages5
JournalNuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Volume268
Issue number11-12
DOIs
Publication statusPublished - Jun 1 2010

Keywords

  • Focussed ion beam
  • Hydrogen depletion
  • Ion beam modification
  • Micro-ERDA
  • Micro-RBS
  • Polymer degradation
  • Radiation stability

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Instrumentation

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