کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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5368820 | 1388410 | 2006 | 4 صفحه PDF | دانلود رایگان |
We investigated the emission of the secondary ions stimulated by single impacts of 136Â keV Au4004+ projectiles. The study was carried out on targets of glycine, phenylalanine, and C60. In addition, a target of C60 was examined with 18Â keV C60+ projectiles. The experiments were performed in the event-by-event bombardment/detection mode. The secondary ions were identified with linear time-of-flight mass spectrometer equipped with an 8-anode detector. The Au4004+ projectile induces abundant multi-ion emission, for instance the average number of detected ions (atomic, fragment, molecular and cluster ions) emitted per event from glycine target is 12.5. The glycine intact molecular ion (Glyâ) yield is 1.14. The bombardment of a C60 target results in the efficient emission of multiple intact C60â (total yield is 0.15).
Journal: Applied Surface Science - Volume 252, Issue 19, 30 July 2006, Pages 6490-6493