# Topics similar to or like Siegbahn notation

Used in X-ray spectroscopy to name the spectral lines that are characteristic to elements. Wikipedia

• Penetrating form of high-energy electromagnetic radiation. Most X-rays have a wavelength ranging from 10 picometers to 10 nanometers, corresponding to frequencies in the range 30 petahertz to 30 exahertz (30×1015Hz to 30×1018 Hz) and energies in the range 124 eV to 124 keV. Wikipedia

• Non-destructive analysis technique used to obtain elemental information about a range of materials by measuring characteristic x-rays within a small wavelength range. The technique generates a spectrum in which the peaks correspond to specific x-ray lines and elements can be easily identified. Wikipedia

• X-ray astronomy detectors are instruments that detect X-rays for use in the study of X-ray astronomy. Observational branch of astronomy which deals with the study of X-ray emission from celestial objects. Wikipedia

• Form of X-ray spectroscopy in which the X-ray line spectra are measured with a spectral resolution sufficient to analyze the impact of the chemical environment on the X-ray line energy and on branching ratios. Done by exciting electrons out of their shell and then watching the emitted photons of the recombinating electrons. Wikipedia

• Atom, releasing X-rays in a pattern that is "characteristic" to each element. Characteristic X-rays were discovered by Charles Glover Barkla in 1909, who later won the Nobel Prize in Physics for his discovery in 1917. Wikipedia

• Experimental science determining the atomic and molecular structure of a crystal, in which the crystalline structure causes a beam of incident X-rays to diffract into many specific directions. By measuring the angles and intensities of these diffracted beams, a crystallographer can produce a three-dimensional picture of the density of electrons within the crystal. Wikipedia

## Sentences forSiegbahn notation

• He developed a convention for naming the different spectral lines that are characteristic to elements in X-ray spectroscopy, the Siegbahn notation.
• The K-alpha line of Moseley's time is now known to be a pair of close lines, written as (Kα1 and Kα2) in Siegbahn notation.
• These letters were later found to correspond to the n values 1, 2, 3, etc. They are used in the spectroscopic Siegbahn notation.
• Moseley found that the K_\alpha lines (in Siegbahn notation) were indeed related to the atomic number, Z.
• The main transitions are given names: an L→K transition is traditionally called Kα, an M→K transition is called Kβ, an M→L transition is called Lα, and so on.
• Here R(Q) is the reflectivity,, \lambda is the X-ray wavelength (typically copper's K-alpha peak at 0.154056 nm), is the density deep within the material and \theta is the angle of incidence.

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