NIST: Atomic Spectra Database Lines Form

NIST Atomic Spectra Database Lines Form

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Main Parameters		e.g., Fe I or Na;Mg; Al or mg i-iii or 198Hg I
Search for Lower: Upper:		nm nm
Output Wavelength Units:

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Format output:		Lines:	All Only with transition probabilities Only with energy level classifications Only with observed wavelengths or intensities Only with diagnostics Include Ritz wavelengths for all possible E1 transitions Include diagnostics data
No JavaScript No spaces in values
Energy Level Units:
Display output:		Bibliographic Information:	TP references, Line references
Page size:
		Wavelength Data:	Observed Ritz Observed - Ritz (difference) Wavenumber (in cm^-1) Uncertainties
Output ordering:	Wavelength

			Level IDs
Maximum lower level energy:	(e.g., 100000)	Wavelength in:	Vacuum (< 2,000 Å) Air (2,000 - 10,000 Å) Wavenumber (> 10,000 Å) Vacuum (< 10,000 Å) Wavenumber (> 10,000 Å) Vacuum (< 2,000 Å) Air (2,000 - 20,000 Å) Vacuum (> 20,000 Å) Vacuum (all wavelengths) Vacuum (< 1,850 Å) Air (> 1,850 Å)
Maximum upper level energy:	(e.g., 400000)

Transition strength bounds will apply to:
Minimum transition strength:	(e.g., 1.2e+05)	Transition strength:	in units of 10⁸ s^-1 log(gf)
Maximum transition strength:	(e.g., 2.5e+12)
		Transition Type:	Allowed (E1) Forbidden (M1,E2,...)
	(e.g., C+)
Relative intensity minimum:	(e.g., 1.2e-03)	Level information:	Configurations Terms Energies J g