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X-ray Properties Database in SQLite Format
Published by National Institute of Standards and Technology · Updated 10/14/2022 · Irregularly
- Last updated
- 10/14/2022
- First published 12/01/2022
- Update frequency
- Irregularly
- Formats
- 3
- JSON, TXT, SQLITE SQL
- Coverage
- Nationwide
- Federal data
About this dataset
A SQLite database containing mass absorption coefficient (both discrete and continuous), atomic sub-shell binding energy, X-ray energy, jump ratio, ground-state occupancy, atomic relaxation rate following core shell ionization and X-ray linewidth data.
The data is in the common SQLite format and also available in SQL format. SQLite is an open-source database which is supported on many different platforms.
This database represents a compilation of data from other sources. Each datum is labeled with a literature reference which represents the source. The references are listed in the LIT_REFERENCES table with associated BIBTEX reference data. The two exceptions to this rule are the FFAST and FFAST_EXTRA tables which are associated with the Chantler2005 reference.
Files and access
Links open the official government source
- Atomic database tables in JSON formatdata.nist.govJSON
- READ_ME.TXTdata.nist.govTXT
- Atomic database in SQLite binary formatdata.nist.gov
- Atomic properties in SQL formatdata.nist.govSQLITE SQL
Links open outside websites we do not control.
Frequently asked questions
- Who publishes X-ray Properties Database in SQLite Format?
- National Institute of Standards and Technology, part of Department of Commerce, publishes this dataset on Data.gov.
- How often is it updated?
- The publisher lists the update frequency as irregularly. The last update was on 10/14/2022.
- How do I download it?
- It is available as JSON, TXT. Use the links in Files and access, which open the official government source.
Similar data from other publishers
- X-ray Properties Database in SQLite FormatNational Institute of Standards and TechnologyA SQLite database containing mass absorption coefficient (both discrete and continuous), atomic sub-shell binding energy, X-ray energy, jump ratio, ground-state occupancy, atomic relaxation rate following core shell ionization and X-ray linewidth data. The datJSONTXTSQLITE SQLUpdated 10/14/2022Irregularly
- Data from: NIST Properties of Molten Salts Database (formerly SRD 27)National Institute of Standards and TechnologyNIST distributed the NIST Properties of Molten Salts Database from 1990 to 2004. As part of the NIST Standard Reference Data Program, the database was designated as Standard Reference Database 27 or SRD 27. Since the database has not been actively maintained sCSVPDFTXTUpdated 01/31/1992Irregularly
Where this catalog comes from
- Data.gov CatalogU.S. General Services Administration
- State and local open data portalsSocrata Discovery API
- State and city CKAN portalsCalifornia, Virginia, Boston, Houston and more
- Government ArcGIS Hub sitesCity and county GIS data
Catalog checked 10/24/2026
We list dataset descriptions only. Downloads and APIs link straight to the official government source, which holds the current version and its terms of use.
Source: Data.gov · Last updated 10/24/2026 · Listing only; the data stays with the publisher
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