Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 11 of 11 for “"Surface ionization"”.
-
Negative Surface Ionization and Electron Affinity by Mass Spectrometry
The negative surface jonizations of some halogens, metal hexafluorides, carbon tetrachloride, benzene and dime thy mercury have been studied over polycrystalline platinum, tungsten and tantalum filaments by mass spectrometry. A description is given of the construction and operation of the V. G. …
-
Ionization of Rydberg Atoms at Patterned Electrode Arrays
… present work explores the effect of controlled surface fields on the ionization of Rydberg atoms near surfaces. Lithographically-patterned micrometer scale electrode arrays are used to generate controlled surface electric fields. The data show that application of even small electrode biases …
-
Chalkogeninių kristalų elektroninės sandaros ir XPS juostų formų tyrimas /
… of crystal and what bands changes determine surface crystal properties and temperature. Explanation of physical phenomena is based not only on quantitative assessments of changes in the experimental XPS but theoretical ab initio calculations of the molecular models. For the first time XPS …
-
New insights in impact ionization and in time-of-flight mass spectroscopy with micrometeoroid detectors by improved impact simulations in the laboratory
The present thesis deals with the impact ionization processes appearing at hypervelocity impacts of microparticles on solid surfaces. With a newly developed dust particle source, applied to the Heidelberg Dust Accelerator facility, aluminium, carbon, sodium contaminated carbon, iron and latex …
-
Radical probe system for in-situ measurements of radical densities of hydrogen, oxygen and nitrogen
… of a sheathed thermocouple. The catalytic probe surface provides efficient recombination of active species with subsequent energy release as a heat. All the probes are exposed to the same background plasma heating/cooling mechanisms, but the temperatures are not the same due to the fact that …