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NIST Observed Interstellar Molecular Microwave Transitions Database - SRD 116
Data provided by National Institute of Standards and Technology
This database contains critically evaluated transition frequencies for the molecular transitions detected in interstellar and circumstellar clouds reported in the literature through mid-2008. The tabulated transition frequencies are recommended for reference in future astronomical observations in the centimeter and millimeter wavelength regions. The transition frequencies have been selected through a critical examination and analysis of the laboratory spectral data obtained from the literature.
Tags: astronomy,atomic physics,circumstellar clouds,interstellar molecules,microwave spectroscopy,molecular clouds,molecular lines,physics,radio astronomy,rotational spectra,
Modified: 2024-02-22
Views: 0
NIST Photoionization of CO2 (ARPES) Database - SRD 119
Data provided by National Institute of Standards and Technology
CO2 is studied using dispersed synchrotron radiation in the 650 Å and 840 Å spectral region. The vibrationally resolved photoelectron spectra are analyzed to generate relative vibrational transition amplitudes and the angular asymmetry parameters describing the various transitions observed.
Tags: ARPES,X ray photoelectron spectroscopy,photoelectron spectroscopy,physics,spectra,
Modified: 2024-02-22
Views: 0
NIST Stopping-Power & Range Tables for Electrons, Protons, and Helium Ions - SRD 124
Data provided by National Institute of Standards and Technology
The databases ESTAR, PSTAR, and ASTAR calculate stopping-power and range tables for electrons, protons, or helium ions. Stopping-power and range tables can be calculated for electrons in any user-specified material and for protons and helium ions in 74 materials.
Tags: Barks correction,ICRUs,International Commission on Radiation Units and Measurements,air,alpha particles,atomic physics,block correction,bremsstrahlung,charged particles,collisions,electronic stopping powers,electrons,energies,nuclear physics,nuclear stopping powers,physics,projected ranges,
Modified: 2024-02-22
Views: 0
NIST X-Ray Transition Energies Database - SRD 128
Data provided by National Institute of Standards and Technology
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 include Z = 10, neon to Z = 100, fermium.
Tags: Bearden database,X ray wavelengths,X rays,Atomic Spectroscopy,measured transitions,physics,transition energies,
Modified: 2024-02-22
Views: 0
NIST Atomic Weights and Isotopic Compositions with Relative Atomic Masses
Data provided by National Institute of Standards and Technology
The atomic weights are available for elements 1 through 118 and isotopic compositions or abundances are given when appropriate. Version 3.0.
Tags: Commission on Atomic Weights and Isotopic Abundances,International Union for Pure and Applied Chemistry,SIAM,atomic mass evaluation,Atomic Weights,Elemental Data,elements,mass spectrometry,measurements,physics,relative atomic masses,representative isotopic compositions,statistical evaluation of isotopic abundances,subcommittee for isotopic abundance,
Modified: 2024-02-22
Views: 0
NIST/EPA/NIH Mass Spectral Library with Search Program - SRD 1a
Data provided by National Institute of Standards and Technology
This database is the product of a multi-year, comprehensive evaluation and expansion of the world's most widely used mass spectral reference library.
Tags: HAPS,chemical analysis,chemical structures,gas chromatography,hazardous air pollutants,mass spectra,mass spectrometry,masses,physics,spectra,structural data,structures,
Modified: 2024-02-22
Views: 0
Almanac API - Parameters
Data provided by National Telecommunications and Information Administration
Almanac API - Ranking by Geography ID within the Nation
Tags: ARRA,Broadband,Broadband Data Improvement Act,Community Anchor Institutions,FCC,Federal Communications Commission,NSGIC,NTIA,National Broadband Map,National Telecomunications and Information Administration,SBDD,State Broadband Data and Development Program,State Broadband Initiative,gov20,opengov,
Modified: 2024-05-09
Views: 0
Almanac API - Ranking by Geography ID within a State
Data provided by National Telecommunications and Information Administration
This API is designed to find the rankings by geography within the state for a specific metric (population or household) and rank (any of the metrics from provider, demographic, technology or speed). The results are the top ten and bottom ten records within the state for the particular geography type and my area rankings. Additionally we include +/- 5 rankings from the 'my' area rank.
Tags: ARRA,Broadband,Broadband Data Improvement Act,Community Anchor Institutions,FCC,NSGIC,NTIA,National Broadband Map,State Broadband Data and Development grant Program,State Broadband Initiative,gov20,opengov,
Modified: 2024-05-09
Views: 0
Almanac API - Ranking by Geography ID within the Nation
Data provided by National Telecommunications and Information Administration
This API is designed to find the rankings by any geography ID within the nation with a specific census metric (population or household) and ranking metric (any of the metrics from provider, demographic, technology or speed). The results are the top ten and bottom ten rankings within the nation for the particular geography type and my area rankings include +/- 5 rankings from the my area rank.
Tags: ARRA,Broadband,Broadband Data Improvement Act,Community Anchor Institutions,FCC,NSGIC,NTIA,National Broadband Map,State Broadband Data and Development grant Program,State Broadband Initiative,gov20,opengov,
Modified: 2024-05-09
Views: 0
Almanac API - Ranking by Geography Type within a State
Data provided by National Telecommunications and Information Administration
This API is designed to find the rankings by any geography type within the state with a specific census metric (population or household) and ranking metric (any of the metrics from provider, demographic, technology or speed). Only the top ten and bottom ten rankings would be returned through the API if the result set is greater than 500; otherwise full ranking list be returned.
Tags: ARRA,Broadband,Broadband Data Improvement Act,Community Anchor Institutions,FCC,NSGIC,NTIA,National Broadband Map,State Broadband Data and Development grant Program,State Broadband Initiative,gov20,opengov,
Modified: 2024-05-09
Views: 0
