Abstract
Here we propose the conception of small-size piezoelectric accelerator of charged particles that operates due to the piezoelectric effect at varying mechanical force applied to piezoelectrics in vacuum. The accelerating voltage and the energy of accelerated particles are estimated. In the proof-of-principle experiment we demonstrate the effect of the emission of X-ray radiation at the mechanical compression of piezoelectric ceramics in vacuum. The compression leads to the appearance of charges and potentials on the surfaces of the piezoelectrics and also to the arising of the electric field in vacuum. Electrons are accelerated in the electric field, strike the matter and produce the X-ray radiation. In the experiment, we have observed emission of the characteristic and bremsstrahlung X-ray radiation of energy up to 60 keV due to the compression of piezoelectric ceramics in vacuum. This means that electrons are accelerated in the piezoelectric accelerator up to the energy at least of 60 keV. The agreement of calculated and experimental data confirms the conception. Advantages of the piezoelectric accelerator and possibilities of its development and applications are discussed.
Highlights
We propose the conception of small-size piezoelectric accelerator of charged particles that operates due to the piezoelectric effect at varying mechanical force applied to piezoelectrics in vacuum
X-ray radiation is produced by electrons accelerated in the electric field arising in vacuum due to pyroelectric2–4 and triboelectric5,6 effects or in the high-frequency field which is generated by a piezoelectric transformer in vacuum7–9
We propose the piezoelectric accelerator which operates due to piezoelectric effect at varying the mechanical force applied to piezoelectrics in vacuum
Summary
We have observed emission of the characteristic and bremsstrahlung X-ray radiation of energy up to 60 keV due to the compression of piezoelectric ceramics in vacuum. The both ceramic cylinders were reversed and the positive potential was produced at the high-voltage electrode of the assembly at the compression. The appearance of spectral peaks at energies equal to the sum of energies of K-lines of Zn and Cu means that in the beginning of the both measurements the current of accelerated electrons, and the X-ray flux, and the counting rate of the spectrometer sufficiently exceed the average ones that leads to registration of coinciding photons due to the pile up effect. The more detail research of the temporary dependencies of the X-ray spectra will be published elsewhere
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