• Organization: National Institute of Standards and Technology
• Updated: 2005-08-01 00:00:00

This X-ray transition table provides the energies and wavelengths for the K and L transitions connecting energy levels having principal quantum numbers n = 1, 2, 3, and 4. The elements covered...

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• Organization: National Institute of Standards and Technology
• Updated: 2005-08-01 00:00:00

This handbook provides a selection of the most important and frequently used atomic spectroscopic data in an easily accessible format. The compilation includes energy levels, ionization energies,...

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• Organization: Department of the Interior
• Updated: 2020-08-19T00:00:00Z

Fluorescence spectroscopy via confocal laser scanning microscopy (CLSM) was used to analyze ancient sedimentary organic matter, including Tasmanites microfossils in Devonian shale and...

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• Organization: National Aeronautics and Space Administration
• Updated: 2026-02-17

This table contains some of the results from a multi-wavelength study of a partially embedded region of star formation centered on the Herbig Be star LkH-alpha 101. Using two 40 ks Chandra...

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• Organization: National Aeronautics and Space Administration
• Updated: 2025-03-31

<p> Particle acceleration in solar flares and its contribution to coronal heating are among the main&nbsp; unsolved problems in heliophysics. Accelerated electrons in a plasma radiate hard X-ray...

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• Organization: National Institute of Standards and Technology
• Updated: 2017-11-01 00:00:00

This database provides access and search capability for NIST critically evaluated data on atomic energy levels, wavelengths, and transition probabilities that are reasonably up-to-date. The Atomic...

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