Change of silica luminescence due to fast hydrogen ion bombardment
نویسندگان
چکیده
منابع مشابه
Stress evolution due to medium-energy ion bombardment of silicon
The evolution of stress in silicon, induced by argon ion bombardment up to fluences of 4.5 · 10 ions/cm, is studied using molecular dynamics simulations with empirical interatomic potentials. A periodically replicated 5.43 nm cube with an exposed (001) surface models the sample of silicon. An interatomic force balance method computes stresses directly across planes in the cube. After every impa...
متن کاملAdhesion between silica surfaces due to hydrogen bonding
The adhesion between surfaces can be enhanced significantly by the presence of hydrogen bonding. Confined water at the nanoscale can display behaviour remarkably different to bulk water due to the formation of hydrogen bonds between two surfaces. In this work we investigate the role of confined water on the interaction between hydrophilic surfaces, specifically the effect of organic contaminant...
متن کاملIon Bombardment of Interplanetary Dust
The recent discovery of ion tracks in interplanetary dust and the increasing evidence for carbon and carburized materials in these objects are strongly suggestive that chemical processing by energetic charged-particle bombardment has occurred during the dust lifetimes. The track density gives a measure of the total ion fluence experienced by the grains. We use this information and laboratory da...
متن کاملDefect formation in Si„111...7Ã7 surfaces due to 200 eV Ar ion bombardment
Surface x-ray diffraction measurements have been made to study defect formation at the atomic level in the near surface region of Si(111)737 surface during low energy ~200 eV! Ar ion bombardment. We have observed the two characteristics of the defects: missing atoms at different layers in the surface region as well as outward strain. We provide calculations that demonstrate how crystal truncati...
متن کاملFast - atom - bombardment mass spectrometry
A detailed study of the mass spectra of peptides produced by the new technique of fast-atom bombardment is reported. Molecular weights of unmodified peptides containing up to 21 amino acids have been determined. In favourable cases, the molecular-weight determination may be made on as little as 0.1 nmol of sample. Positive-ion and negative-ion spectra are obtained with equal facility. With samp...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Nukleonika
سال: 2015
ISSN: 0029-5922
DOI: 10.1515/nuka-2015-0063