The results show the evidence of boron's (in B2O3) K_a X-ray spectrum fine structure with two peaks, at wavelength 67.657 A and 67.536A respectively, which verify the theory of sp~2 hybrid orbit of boron.
The resulti show that, for stronger X-ray spectrum (15 keV Planck spectrum), Compton scattercan cause the depositional energy and the peak pressur of X-ray shock wave to decrease, in LY-12 aluminium, the disagreement aE(x) /E(x) range from 9 % to 22 %, △Pm(x) /Pm(x) is about 12 %.
It was found that, during implosion of double multiwire arrays, more than 90% of the total energy corresponding to the soft X-ray spectrum were emitted from an area >amp;lt;500 μm in diameter.
The relative integral intensity of the last emission line in the characteristic X-ray spectrum is used as the first analytical signal.
The spectral intensity of the brightest (Kα, Lαand, less frequently, Mαor Mβ) lines of the characteristic X-ray spectrum serves as the second analytical signal, which is conventionally used in X-ray fluorescence analysis.
The ratios of the intensities in the X-ray spectrum were measured: , , , and .
The brightness distribution and X-ray spectrum of the SNR are obtained from archival ROSAT and ASCA X-ray data.
The prepared CdSe NCs were characterized by ultraviolet-visible spectra (UV-Vis), photoluminescence (PL), transmission electron micrograph (TEM), energy disperse X-ray spectra (EDX) and X-ray diffraction (XRD).
Rising the signal-to-noise ratio in X-ray spectra of femtosecond laser-produced plasmas using the "mean-median" algorithm
In turn, the noise signals of X-ray detectors grow in amplitude and the signal-to-noise ratio in recording X-ray spectra of multiply charged ions approaches unity.
The most powerful effect of the above factors is exerted on X-ray spectra recorded by such electromagnetic equipment as CCD-based detectors, photoelectron amplifiers, etc.
A new "mean-median" algorithm is described, with which it is possible to considerably increase the signal-to-noise ratio of CCD detectors used to measure X-ray spectra of femtosecond laser-produced plasma.