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J Appl Crystallogr. 2015 Jan 30;48(Pt 1):301-305. eCollection 2015 Feb 1.

The NeXus data format.

Author information

1
Laboratory for Development and Methods, Paul Scherrer Institute, 5232 Villigen-PSI, Switzerland.
2
ISIS Facility, STFC, Rutherford Appleton Laboratory, Didcot, Oxfordshire OX11 0QX, England.
3
imgCIF, Dowling College, Shirley, NY 11769, USA.
4
Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA.
5
Spallation Neutron Source, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA.
6
Los Alamos National Laboratory, Los Alamos, NM 87545, USA.
7
Helmholtz-Zentrum Berlin für Materialien und Energie Gmb, 14109 Berlin, Germany.
8
Advanced Photon Source, Argonne National Laboratory, Argonne, IL 60439, USA.
9
ANSTO, New South Wales 2234, Australia.
10
Argonne National Laboratory, Argonne, IL 60439, USA.
11
Diamond Light Source, Didcot, Oxfordshire OX11 0DE, England.
12
KEK, Ibaraki 305-0801, Japan.
13
Swiss Light Source, Paul Scherrer Institute, 5232 Villigen-PSI, Switzerland.
14
Deutsches Elektronen-Synchrotron DESY, 22607 Hamburg, Germany.
15
Forschungszentrum Jülich, JCNS at MLZ, 85747 Garching, Germany.

Abstract

NeXus is an effort by an international group of scientists to define a common data exchange and archival format for neutron, X-ray and muon experiments. NeXus is built on top of the scientific data format HDF5 and adds domain-specific rules for organizing data within HDF5 files, in addition to a dictionary of well defined domain-specific field names. The NeXus data format has two purposes. First, it defines a format that can serve as a container for all relevant data associated with a beamline. This is a very important use case. Second, it defines standards in the form of application definitions for the exchange of data between applications. NeXus provides structures for raw experimental data as well as for processed data.

KEYWORDS:

HDF5; NeXus data format; data archiving; data exchange; platform-independent

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