UDC 537.9

X-RADIATION UNDER PULSED LASER IMPACT ON OPAL MATRIX

 

À. F. Belyanin ^1,2, A. S. Bagdasaryan ², S. A. Bagdasaryan^1,2, V.V. Borisov ³, E. R. Pavlyukova ⁴

¹ Central Research Technological Institute “Technomash”, 4, Ivan Franko Str., Moscow, 121108, Russia

² Scientific engineering center “Technological developments of telecommunication and radio frequency identification”, JSC, 1 (4), Sukharevskaya Sq., Moscow 127051, Russia

³ Skobeltsyn Institute of Nuclear Physics, Lomonosov Moscow State University, 1 (2), Leninskie Gory, Moscow 119991, Russia

⁴ Moscow Institute of Physics and Technology (State University), 9 Institutsky Per., Dolgoprudny, Moscow region 141700, Russia

 

The paper is received on June 6, 2019

 

Abstract. Opal matrices, representing the closest 3D pack of spherical particles of amorphous SiO₂ with a diameter d ≈ 250 nm (Δd ≈ 2%), were synthesized from a solution of ammonium hydroxide (NH₄OH), ethanol (C₂H₅OH) and tetraester orthosiliconic acid (Si(OS₂H₅)₄). In the experiments, the samples of opal matrixes in the form of plates with 1–5 mm thick were used. The paper presents the results of measuring the X-ray energy spectra induced by pulsed laser impacts on opal matrixes at wavelengths (l): 1040 nm (IR), 510 nm jointly with 578 nm, 366 nm (UV). According to the results of spectral studies, it was found that the induced X-rays are low-intensity soft X-radiation with photon energy of 0.08–2.47 keV and with wavelength of 15.2–0.5 nm. The impact on the opal matrix by laser radiation in the UV range causes the intense luminescence of opal matrixes in the visible light range.

Keywords: opal matrix; laser radiation, X-ray radiation, energy spectrum.

References

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For citation:

À. F. Belyanin, A. S. Bagdasaryan, S. A. Bagdasaryan, V. V. Borisov, E. R. Pavlyukova. X-radiation under pulse laser impact on opal matrix. Zhurnal Radioelektroniki - Journal of Radio Electronics. 2019. No. 6. Available at http://jre.cplire.ru/jre/jun19/12/text.pdf

DOI  10.30898/1684-1719.2019.6.12