Interactions of Low-Energy Electrons with Atomic and Molecular Solids

Bass, A. D.; Sanche, Léon

doi:10.1201/9780203913284-8

Cited by 3 publications

References 257 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

Desorption of neutrals, cations, and anions from core-excited amorphous solid water

Dupuy

Féraud

Bertin

et al. 2020

The Journal of Chemical Physics

View full text Add to dashboard Cite

Core-excitation of water ice releases many different molecules and ions in the gas phase. Studying these desorbed species and the underlying mechanisms can provide useful information on the effects of X-ray irradiation in ice. We report a detailed study of the X-ray induced desorption of a number of neutral, cationic and anionic species from amorphous solid water. We discuss the desorption mechanisms, and the relative contributions of Auger and secondary electrons (X-ray induced Electron Stimulated Desorption) and initial excitation (direct desorption) as well as the role of photochemistry. Anions are shown to desorb not just through processes linked with secondary electrons but also through direct dissociation of the core-excited molecule. The desorption spectra of oxygen ions (O + , OH + , H2O + , O − , OH − ) give a new perspective on their previously reported very low desorption yields for most types of irradiation of water, showing that they mostly originate from the dissociation of photoproducts such as H2O2.

show abstract

Desorption of neutrals, cations, and anions from core-excited amorphous solid water

Dupuy

Féraud

Bertin

et al. 2020

The Journal of Chemical Physics

View full text Add to dashboard Cite

show abstract

Mechanisms of Radiation-Induced DNA Damage: Direct Effects

Becker¹,

Adhikary²,

Sevilla³

2010

Recent Trends in Radiation Chemistry

View full text Add to dashboard Cite

Scanning transmission low-energy electron microscopy

et al. 2011

View full text Add to dashboard Cite

We discuss an extension to the transmission mode of the cathode-lens-equipped scanning electron microscope, enabling operation down to the lowest energies of electrons. Penetration of electrons through free-standing ultrathin films is examined along the full energy scale, and the contribution of the secondary electrons (SEs), released near the bottom surface of the sample, is shown, enhancing the apparent transmissivity of the sample to more than 100%. Provisional filtering off of the SEs, providing the dark-field signal of forward-scattered electrons, was made using an annular 3-D adjustable detector inserted below the sample. Demonstration experiments were performed on the graphene flakes and on a 3-nm-thick carbon film. Electron penetrability at the lowest energies was measured on the graphene sample.

show abstract

Interactions of Low-Energy Electrons with Atomic and Molecular Solids

Cited by 3 publications

References 257 publications

Desorption of neutrals, cations, and anions from core-excited amorphous solid water

Desorption of neutrals, cations, and anions from core-excited amorphous solid water

Mechanisms of Radiation-Induced DNA Damage: Direct Effects

Scanning transmission low-energy electron microscopy

Contact Info

Product

Resources

About