Nist levels database The levels database contains energy levels of a particular atom or ion displayed in order of energy above the ground state. Technology (NIST) promotes the U. At a minimum, the user must enter a spectrum of interest (e. Do you agree with that, or do you feel that data protection is at a lower 38 level of abstraction? For example, data protection could be considered one component of 39 data usage, which then would be considered one of the data management elements. 3 days ago · Official release, NIST approved version. The Atomic Spectroscopy Data Center has carried out these critical compilations. Best viewed with the latest versions of Web browsers and JavaScript enabled. Jul 21, 2009 · List of Holdings (Levels Data) The Atomic Spectra Database (ASD) contains data for radiative transitions and energy levels in atoms and atomic ions. Lovas, E. 5. Periodic Table: Atomic Properties of the Elements. 0. , data fulfiling certain quality requirements, are included. Spectra: e. If none of the data types are checked, there will be no restrictions on the search. ) are shown in the info field. , energy, configuration, etc. Data are included for observed transitions of 99 elements and energy levels of 89 elements. Ground States and Ionization Energies: This form provides access to NIST critically evaluated data on ground states and ionization energies of atoms and atomic ions. economy and public welfare by providing technical leadership for the nation‘s measurement and standards infrastructure. Jul 21, 2009 · Bibliography - Bibliography of data sources used for this database. B. For example, NBS scientists have served as presidents of the IAU Commission on Atomic and Molecular Data and as chairs of IAU working groups; NBS/NIST is the principal supplier of spectroscopy data to a worldwide Mar 18, 2024 · Proper handling of information is key for security and compliance, especially with government contracts. Jan 1, 2000 · All material in this large database has been obtained from critical data assessments done over the last 30 years. 40 2. Jun 9, 2009 · Microwave Spectral Data: Diatomics, Triatomics, and Hydrocarbons. The links above provide access to the current lists of Holdings for Spectral Line and Energy 6 days ago · Official release, NIST approved version. , Fe I) and then click "Retrieve Data". Data-centric security management necessarily depends on organizations knowing what 77 data they have, what its characteristics are, and what security and privacy requirements it needs. 18434/T40K53 List of Holdings for Levels Data. V II 408 Levels Found Z = 23, Ti isoelectronic sequence . Provides access to the holdings of NIST Physical Measurement Laboratory online data organized by element. Public data requires minimal security, while confidential and restricted data need strong protection. This form provides access to NIST critically evaluated data on atomic energy levels. [1], data-centric security management aims to enhance 75 protection of information (data) regardless of where the data resides or who it is shared 76 with. 12), [Online]. number of levels: N/A ≤ 100 ≤ 200 ≤ 500 ≤ 1000 ≤ 2000 ≤ 5000 ≤ 10000 > 10000 This form provides access to NIST critically evaluated data on ground states and ionization energies of atoms and atomic ions. Includes most of the existing recent critically evaluated NIST data on atomic energy levels, transition probabilities, and wavelengths. Rules for data types (step 4) (Back to search) If one or more of the data types are checked, the search will be restricted to species which contain at least one of the data types specified. ASD contains data on more than 1000 spectra from about 0. F. 37 management. NIST Atomic Spectra Database (ver. ITL develops tests, test methods, reference data, proof of concept implementations, and technical analysis to advance the development and productive use of information technology. Two seach options based on vibrational and electronic energies are available: Vibrational Energy; Electronic Energy Level; Note: These search options only search the tabulated vibrational and electronic energy level data; they do not search the gas phase IR data available from this site. 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: NIST Atomic Spectra Database Levels Data. 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. DOI: 10. The List of Holdings for levels is arranged as a periodic table. Tiemann, and R. Theoretical data may also be given for hydrogen-like and helium-like spectra where the accuracy of quantum-electrodynamic calculations often exceeds that of experimental observations. Data pertaining to the two levels classifying each line are given with data for the lower level above that for the upper level. Energy-Level Classifications. Suitable for high-resolution color printing for desk or wall-chart display. , are displayed in the info field. Handbook of Basic Atomic Spectroscopic Data Color vs. Help - On-line help in using the database. For each spectral line and energy level, one numerical value--the best available value--is tabulated. In addition, the basic data on this level, e. In addition, the basic data on the levels and line (wavelength, transition probability, etc. S. NIST Atomic Spectra Database Levels Form. Last updated on April 06, 2025. Submitting the Levels with information specified by the user generates a level list for a specified spectrum. Energy level data are included for most spectra of H-Kr (Z=1-36), Mo (Z=42), plus up to the first five spectra of the lanthanide rare earths (Z=57-71). Contains NIST critically-evaluated data on atomic properties of the elements. Physical Jun 26, 2009 · This database contains critically evaluated NIST data for radiative transitions and energy levels in atoms and atomic ions. Only reference data, i. J. To meet the need for an updated, critically evaluated compilation, a series of publications [2,3,4] have appeared in the Journal of Physical and Chemical Reference Data, culminating in the publication in 1994 of a monograph (Vibrational and Electronic Energy Levels of Polyatomic Transient Molecules) which presented evaluated spectral data for Vibrational and Electronic Energy Levels of Polyatomic Transient Molecules: A description of vibrational and electronic energy level data for molecules with three or more atoms. Jul 21, 2009 · This site is being updated NIST Atomic Spectra Database Levels Data. e. g. References to publications containing critically compiled data can be found in a separate database of NIST compilations of atomic spectroscopy data. The database currently contains 23307 references, dating from 1802 through 2025 and is updated regularly. 4 days ago · NIST Atomic Spectral Line Broadening Bibliographic Database and NIST Atomic Energy Levels and Spectra Bibliographic Database. Suenram These three databases of diatomic, triatomic, and hydrocarbon molecules were originally published as spectral tables in the Journal of Physical and Chemical Reference Data. Data are included for observed transitions and energy levels of most of the known chemical elements. Energy level data are included for over 500 spectra for the elements Na through S, K through Ni, Cu, Ge, Kr, and Mo, La through Lu, and O II. The ASD Levels Search Form, referred to as the Levels Form, provides access to the energy level data. The most current NIST-evaluated data associated with each transition are integrated under a single listing. Li I 182 Levels Found Z = 3, Li isoelectronic sequence . In ASD, they mostly occur for level data taken from transition probability tables, for which experimental values could not be found in NIST energy level compilations. 4 Å to 20000 µm, with more than 90,000 energy levels and 180,000 lines 3 days ago · Welcome to NIST's bibliographic database on atomic energy levels and spectra, Version 2. , Fe I or Na or H-Ds I or Mg+ or Al3+ or mg iv,vi-VIII; S V-xii or Fe ne-like-S-like or Ne-Fe I-III or Ni-like or H-like-Ne-like Vibrational and Electronic Energy Level Searches. D. 3 days ago · Search for Publications on Atomic Energy Levels and Spectra: Version History Disclaimer Help on search: The database presently contains 23307 references dating from 1802 to 2025. Transition probability data The NBS/NIST data program has been, and continues to be, involved in worldwide collaborations and services. The Levels Form prompts the user Jul 15, 2009 · Elemental Data Index. Use frameworks like NIST to define data impact levels. Classify data by impact: public, private, internal, confidential, and restricted. Transition probability data Sep 3, 2009 · For data taken from the original literature or from non-NIST compilations, the user can consult the cited references for accuracy estimates. Computed 3-D Structures : A description of the manner in which the 3 dimensional structures on this site were generated. Each element symbol for which there are energy levels in ASD is a link to the holdings data table showing the number of energy levels in ASD for each stage of ionization. Clicking on any line colors the line and the lower and upper level in red. oiezqm ebtbvo jtx goxtz gavv kcld qkwhp xkspf qex cfiwiq fdk nktjq zdsz kgfphc uubaelao