Formation of positive and negative ions in the gas phase of D-ribose by low-energy electrons

被引：0
|
作者：
Chernyshova, I [1 ]
Kontros, J. [1 ]
Shpenik, O. [1 ]
Demes, S. [2 ]
机构：
[1] Nat Acad Sci Ukraine, Inst Electron Phys, 21 Univ Ska Str, UA-88017 Uzhgorod, Ukraine
[2] Hungarian Acad Sci, Inst Nucl Res, 18-C Bern Sq, H-4026 Debrecen, Hungary
来源：
31ST INTERNATIONAL CONFERENCE ON PHOTONIC, ELECTRONIC AND ATOMIC COLLISIONS (ICPEAC XXXI) | 2020年 / 1412卷
关键词：
D O I：
10.1088/1742-6596/1412/13/132054
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
Using a hypocycloidal electron spectrometer the total dissociative electron attachment cross section and the ionization cross section for D-ribose molecule were studied in the E<30 eV energy range. A clear structure near zero energy and in the 6.0-9.5 eV range is observed in the dissociative electron attachment cross section. These features appear due to the formation of negative ion fragments of the molecule. The ionization potential of the D-ribose molecule was determined at 9.74 +/- 0.02 eV. In the total ionization cross section weak features are observed, which most likely due to the formation of positive ion fragments of the initial molecule.
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