Determination of the mechano-electrical signal changing properties of soot filled silicones: Possibilities for use in textile pressure sensors
- 作者：Stephan Rothstock ; Jö ; rg Mä ; mpel ; Hartmut Witte ; Wolfgang Scheibner ; Matthias Feustel
- 关键词：Intensity ratio following radioactive decay ; Intensity ratio by photoionization ; L X-ray intensity ratio ; Radioisotopes ; L X-rays
- 刊名：Clinical Biomechanics
- 出版年：2008
- 期刊代码：56_02680033
- 类别：med
- 出版时间：June 2008
- 卷：23
- 期：5
- 页码：119
- 文件大小：46 K
摘要
The measurements of the L X-ray intensity ratio I(L
)/I(Lβ), I(L)/I(Lγ), I(L)/I(Lι), I(Lβ)/I(Lγ) and I(Lι)/I(Lγ) for elements Dy, Ho, Yb, W, Hg, Tl and Pb were experimentally determined both by photon excitation, in which 59.5 keV γ-rays from a filtered radioisotope 241Am was used, and by the radioactive decay of 160Tb, 160Er, 173Lu, 182Re, 201Tl, 203Pb and 207Bi. L X-rays emitted by samples were counted by a Si(Li) detector with resolution 160 eV at 5.9 keV. Obtained values were compared with the calculated theoretical values. Theoretical values of the I(L/Lβ), I(L/Lγ), I(L/Lι), I(Lβ/Lγ) and I(Lι/Lγ) intensity ratios were calculated using theoretically tabulated values of subshell photoionization cross-section, fluorescence yield, fractional X-ray emission rates, Coster–Kronig transition probabilities. It was observed that present values agree with previous theoretical and other available experimental results.
)/I(Lβ), I(L)/I(Lγ), I(L)/I(Lι), I(Lβ)/I(Lγ) and I(Lι)/I(Lγ) for elements Dy, Ho, Yb, W, Hg, Tl and Pb were experimentally determined both by photon excitation, in which 59.5 keV γ-rays from a filtered radioisotope 241Am was used, and by the radioactive decay of 160Tb, 160Er, 173Lu, 182Re, 201Tl, 203Pb and 207Bi. L X-rays emitted by samples were counted by a Si(Li) detector with resolution 160 eV at 5.9 keV. Obtained values were compared with the calculated theoretical values. Theoretical values of the I(L/Lβ), I(L/Lγ), I(L/Lι), I(Lβ/Lγ) and I(Lι/Lγ) intensity ratios were calculated using theoretically tabulated values of subshell photoionization cross-section, fluorescence yield, fractional X-ray emission rates, Coster–Kronig transition probabilities. It was observed that present values agree with previous theoretical and other available experimental results.