x-ray spectrum


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x-ray spectrum

[′eks ‚rā ‚spek·trəm]
(spectroscopy)
A display or graph of the intensity of x-rays, produced when electrons strike a solid object, as a function of wavelengths or some related parameter; it consists of a continuous bremsstrahlung spectrum on which are superimposed groups of sharp lines characteristic of the elements in the target.
References in periodicals archive ?
(2011) Discovery of a cyclotron resonance feature in the X-ray spectrum of GX 304-1 with RXTE and Suzaku during outbursts detected by MAXI in 2010.
The width of the X-ray spectrum indicates that the galaxy's central black hole is whirling around at 90 percent of its maximum possible rate of rotation.
"This is by far the best X-ray spectrum" yet taken of intergalactic gas, says independent expert J.
After recording an x-ray spectrum at a fixed beam location, the x-ray microanalysis procedure consists of two distinct stages:
If that supernova left behind a neutron star, the observed X-ray spectrum should indicate a temperature of about 2 million kelvins, Helfand says.
Thus, it is possible to measure the quality of X-ray spectrum of the sample without changing the orientation of the grain boundary.
With a total effective XIS exposure of more than two weeks, the X-ray spectrum reveals several faint emission features from highly ionized chromium, manganese and nickel in addition to a bright emission line from iron.
Enter Chandra's X-ray spectrum of V471 Tauri, a pre-cataclysmic binary that shines at about magnitude 9.5 in the western fringe of the Hyades.
We have selected silver flake (or tin flake for preparing sulfides since sulfides reacts with silver) as a mounting medium since they have good electrical conductivity, bleed the charge and help to conduct away the heat generated from the electron beam sample interaction and do not add an excessive number of peaks to the x-ray spectrum at analysis time.
Bechtold and Siemiginowska found the jet by accident while using Chandra to study the X-ray spectrum of the quasar, known as PKS 1127-145.
"Because of this gravitational lens, we were able to get very detailed information on the X-ray spectrum that is, the amount of X-rays seen at different energies from RX J1131," said co-author Mark Reynolds also of Michigan.
Finally, the X-ray spectrum of the source, that is, its signature in energy, is similar to what astronomers expect to see for a pulsar.