NIST XCOM: Photon Cross Sections Database - SRD 8

Metadata Updated: August 10, 2018

A web database is provided which can be used to calculate photon cross sections for scattering, photoelectric absorption and pair production, as well as total attenuation coefficients, for any element, compound or mixture (Z <= 100) at energies from 1 keV to 100 GeV. XCOM provides two forms of output: (a) tables which correspond closely in format to existing tables in the literature; (b) graphical display of the tabular data. Access to the database is provided through a web-based form located at:

Access & Use Information

Public: This dataset is intended for public access and use. License: See this page for license information.

Downloads & Resources


Metadata Created Date January 29, 2016
Metadata Updated Date August 10, 2018

Metadata Source

Harvested from Commerce Non Spatial Data.json Harvest Source

Additional Metadata

Resource Type Dataset
Metadata Created Date January 29, 2016
Metadata Updated Date August 10, 2018
Publisher National Institute of Standards and Technology
Unique Identifier ECBCC1C1301B2ED9E04306570681B10733
Stephen Seltzer
Maintainer Email
Public Access Level public
Bureau Code 006:55
Metadata Context
Schema Version
Catalog Describedby
Harvest Object Id 91b2e654-12d6-484c-806f-976cea122023
Harvest Source Id 0836a94a-b3c8-4190-a145-bddc06458b2c
Harvest Source Title Commerce Non Spatial Data.json Harvest Source
Homepage URL
Language en
Data Last Modified 2010-11-01
Program Code 006:052
Source Datajson Identifier True
Source Hash 6d1065738749cead8196163ae104ba534524d878
Source Schema Version 1.1
Category Physics: Radiation, Standards: Reference data

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