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

被引：11
作者：
Simon, A. [1 ]
Huszank, R. [1 ]
Novak, M. [1 ]
Pintye, Z. [1 ]
机构：
[1] Hungarian Acad Sci, Inst Nucl Res, H-4001 Debrecen, Hungary
来源：
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS | 2010年 / 268卷 / 11-12期
关键词：
Polymer degradation; Radiation stability; Ion beam modification; Focussed ion beam; Hydrogen depletion; Micro-RBS; Micro-ERDA; PROTON MICROPROBE; DEPTH RESOLUTION; MICROANALYSIS; DEGRADATION; PET;
D O I：
10.1016/j.nimb.2010.02.087
中图分类号：
TH7 [仪器、仪表];
学科分类号：
0804 ; 080401 ; 081102 ;
摘要：
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/mu m(2) 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 10(14)-10(15) ions/cm(2) 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. (C) 2010 Elsevier B.V. All rights reserved.
引用
收藏
页码：2197 / 2201
页数：5
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