NeXus is a data format for the exchange of neutron and synchrotron sca
ttering data between facilities and user institutions. It has been dev
eloped by an international team of scientists and computer programmers
from neutron and X-ray facilities around the world. The NeXus format
uses the hierarchical data format (HDF) which is portable, binary, ext
ensible and self-describing. The NeXus format defines the structure an
d contents of these HDF tiles in order to facilitate the visualization
and analysis of neutron and X-ray data. In addition? an application p
rogram interface (API) is being produced in order to simplify the read
ing and writing of NeXus files. The details of the format are availabl
e at [http://www.neutron.anl.gov/NeXus/]. (C) 1998 Published by Elsevi
er Science B.V. All rights reserved.