Intense Pulsed Neutron Source (IPNS) was a scientific user facility at

Argonne National Laboratory Argonne National Laboratory is a Federally funded research and development centers, federally funded research and development center in Lemont, Illinois, Lemont, Illinois, United States. Founded in 1946, the laboratory is owned by the United Sta ...

for neutron scattering research. The IPNS was the world's first pulsed neutron source open to external users and started operations in 1981. The facility ceased operation in January, 2008 after the

omnibus spending bill An omnibus spending bill is a type of bill in the United States that packages many of the smaller ordinary appropriations bills into one larger single bill that can be passed with only one vote in each house of Congress. There are twelve differen ...

forced Basic Energy Sciences (BES) to cease IPNS operations.

References

Argonne National Laboratory Neutron facilities {{CMP-stub