About methodical errors in studies of mass transfer processes induced by intense pulsed ion beams in solids

Результат исследований: Материалы для типов конференцийДокумент

Аннотация

The present paper briefly discusses the questions of accuracy of depth profiling techniques in studies of mass transfer processes induced by Intense Pulsed Ion Beam (IPIB) in solids. Best tools of measurements provide the good precision only. An acceptable reproducibility, correctness, and, finally, accuracy of measurements are a result of complete elimination all of the systematic errors. The first ones are caused by a dependence of main SIMS and AES analytical characteristics, ionization coefficients and sputtering factors, on a degree of IPIB exposure. It is shown that the preferable application of nuclear analysis methods, RBS and PIGE, avoids these errors. A mechanical polishing conventionally applied for surface preparation of specimen under investigation engenders to unpredictable changing of mechanical, electric and thermodynamic properties of surface layer, for at least 1 μm depth in case of Cu surface polishing and for the depth less than the previous one by the factor of 3-5 for α-Fe, steel, Zr, etc. An ignorance of this fact compels them to find a new ideas for an explanation of the unusual mass transfer. Surface preparation with electrochemical polishing allows to avoid a second kind of errors. Third kind of systematic errors are connected with vagueness of main IPIB parameters (ion species, energy distribution, flux) at the investigated section of the sample modified. More detailed specimens' analyzing by cross section can be suggested in order to avoid these errors.

Язык оригиналаАнглийский
Страницы1110-1115
Число страниц6
СостояниеОпубликовано - 1 дек 1997
СобытиеProceedings of the 1997 11th International Pulsed Power Conference. Part 2 (of 2) - Baltimore, MD, USA
Продолжительность: 29 июн 19972 июл 1997

Другое

ДругоеProceedings of the 1997 11th International Pulsed Power Conference. Part 2 (of 2)
ГородBaltimore, MD, USA
Период29.6.972.7.97

ASJC Scopus subject areas

  • Electrical and Electronic Engineering

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  • Цитировать

    Ryzhkov, V. A. (1997). About methodical errors in studies of mass transfer processes induced by intense pulsed ion beams in solids. 1110-1115. Документ представлен на Proceedings of the 1997 11th International Pulsed Power Conference. Part 2 (of 2), Baltimore, MD, USA, .