Monte Carlo calculation of the energy-loss spectra for fast H<sub>2</sub><sup>+</sup> molecular ions transmitted through thin foils
M M Jakas; N E Capuj; M M Jakas; Dept. de Fisica Fundamental y Experimental, La Laguna Univ., Tenerife, Spain; N E Capuj; Dept. de Fisica Fundamental y Experimental, La Laguna Univ., Tenerife, Spain
Журнал:
Journal of Physics: Condensed Matter
Дата:
1995-06-12
Аннотация:
We report calculations of the energy-loss spectra for 25-300 keV amu<sup>-1</sup> H<sub>2</sub><sup>+</sup> ions transmitted through carbon and aluminium foils. At 25 keV amu<sup>-1</sup> the mean energy-loss of transmitted H<sub>2</sub><sup>+</sup> ions is approximately 15% smaller than that of two protons at the same velocity, whereas at 300 keV amu<sup>-1</sup> it becomes 10% greater. When compared to those of two uncorrelated protons, the width of the energy-loss distribution appears to increase with a decrease of the bombarding energy, becoming 3-5 times larger at 25 keV amu<sup>-1</sup> for molecules transmitted through aluminium and carbon foils, respectively.
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