EXFOR is the name given to the database containing experimental data. In addition to storing the data and its bibliographic information, experimental information, including source of uncertainties, is also compiled.
The data presently included in the EXFOR database include:
EXFOR is also the name of the exchange format designed to allow transmission of nuclear data between the Nuclear Reaction Data Centres. It has evolved to allow a large variety of numerical data tables with explanatory and bibliographic information to be transmitted in an easily machine-readable format.
An EXFOR entry (or "work" as it is commonly known) is divided into bibliographic and descriptive information (alphanumeric) and data (numeric). The entries are further divided into subentries (data sets). Bibliographic or descriptive information and common data may be associated with the whole entry and/or with each subentry. A set of system identifiers has been devised for separating these logical blocks of information within an entry.
For a complete description of the EXFOR format, including examples, and the use of keywords please see the EXFOR Basics Manual produced by the National Nuclear Data Center at Brookhaven National Laboratory, USA on behalf of the Nuclear Reaction Data Centres.
The EXFOR web retrieval system provides an easy way to make searches of the EXFOR database. To specify a nuclide, enter either the Atomic Number (Z) or Symbol (or a list, separated by commas e.g. 3,4 or Li,Be). Likewise, enter the Atomic Mass (A).
In addition, the energy range of the data and a range of years of publication may be provided as search criteria. Alternatively, if the EXFOR entry number is already known, this may be entered in preference to all other search parameters.
The database search is initiated by clicking on the Search button. An index of the available data corresponding to the specified search criteria will be displayed.
The EXFOR reaction is specified by subfields as follows:
sf1 (sf2, sf3) sf4, sf5, sf6, sf7, sf8, sf9
|sf1 -||target isotope|
|sf2 -||incident particle|
|sf3 -||product particle|
|sf4 -||reaction process|
|sf5 -||branch code|
|sf6 -||parameter code|
|sf7 -||particle considered|
|sf8 -||modifier code|
|sf9 -||data type|
Last update: 19 March 2013