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प्रश्न
How do we obtain characteristic x-ray spectra?
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उत्तर
Characteristic x-ray spectra:
1. X-ray spectra snow some narrow peaks at some, well-defined wavelengths when the target is hit by fast electrons. The line spectrum showing these peaks is called the characteristic x-ray spectrum.
2. When an energetic electron removes electrons from K-shell electrons than the electrons from the outer orbit jump to fill the vacancy.
3. Energy difference between the levels is given out as x-ray photons of definite wavelength.
Origin of characteristic x-ray spectra
K-Series (Kα and Kβ): This line is due to electronic transitions from L, M, and N shells to K-level.
L-Series (Lα and Lβ): It arises due to electronic transitions from M, N, and O shells.
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