| Paper | Title | Page |
|---|---|---|
TUPSB46 |
Quasi-continuous X-ray and Electron Generation in LiTaO3-based Pyroelectric Accelerator Driven by Periodically Varying Temperature | |
|
||
|
Funding: The work was supported by the RSF grant #21-72-00006. The work of A.K. was financially supported by a Program of the Ministry of Education and Science, project No. FZWG-2020-0032 (2019-1569). The pyroelectric effect in lithium tantalate (LiTaO3) single crystals provides a curious possibility to generate fluxes of electrons and x-rays with energy up to 100 keV. Basic conditions for initiation of this phenomenon are low pressure of residual gas around the pyroelectric crystal (0.1 - 10 mTorr) and changing of its temperature. However, this way of particles generation does not become widely used yet due to the instability of generated particle flux. Here we present that application of sinusoidal changing of temperature may overcome this shortcoming and obtain a quasi-stable X-ray and electron pyroelectric source. We managed to observe and characterise the avalanche process at the pyroelectric effect. This phenomenon is responsible for the multiplication of electrons and X-rays. The great potential of this compact X-ray source by performing reliable energy-dispersive X-ray spectroscopy for element analysis of two solid samples was demonstrated. |
||
| Cite • | reference for this paper using ※ BibTeX, ※ LaTeX, ※ Text/Word, ※ RIS, ※ EndNote (xml) | |