The NCNR's Expansion Initiative is a five-year project to increase cold neutron
measurement capabilities at NIST. It was announced at a March 14, 2006 evening
meeting attended by approximately 80 persons in Baltimore, MD during
the General Meeting of the American Physical Society.
A planning workshop was held in Bethesda, MD, July 17-19, 2006:
113 invitees from the neutron user community participated in
plenary and breakout sessions to provide input suggestions for
instrumentation and infrastructure.
A
summary report is available.
The reactor was shut down in April 2011 and commissioning activities
are underway preparing for restart and limited user operations in
late March.
Apart from the NG-1 reflectometers, the NG-1 cold neutron depth
profiling facility, and the MACS spectrometer, all of the
instruments in the confinement building and in the guide
hall will be operational.
Click
here for the anticipated instrument configuration.
During the phase 1 post-outage period, which runs until December 2012,
several new instruments will be commissioned.
In the confinement building
MACS-II
will be installed at BT-9, viewing its own dedicated cold neutron source,
PeeWee.
In the guide hall MAGIk,
the polarized beam reflectometer (previously at NG1), and the
prompt-gamma activation analysis (PGAA) facility are scheduled for
installation on the NG-D guide, along with
the 10 m SANS facility
on NG-B.
Click
here for the expected instrument configuration in December 2012.
Additional instruments will be installed and commissioned in 2013 and 2014.
Click
here for the anticipated instrument configuration in 2015.
For information about the instruments and facilities that are due to be
completed by December 2012, click on one of the links below the layout figures.
For information about the instruments and facilities that are due to be
completed in December 2012, click on one of the following links:
- A multiple tagged-beam, off-specular reflectometer/diffractometer (MAGIk).
- A high flux triple axis spectrometer viewing a completely new cold source (MACS-II).
- A new 10 m SANS facility (10 m SANS).
- A prompt-gamma neutron activation analysis (PGAA), and
cold neutron depth profiling (CNDP).
- A combined multi-use neutron physics (aCORN) and
neutron imaging facility (NIF).
For information about instruments planned for installation in later years,
click on one of the following links:
- A very small angle neutron scattering diffractometer (vSANS).
- A 'white beam' reflectometer/diffractometer (CANDOR).
- A low-resolution high intensity diffractometer for rapid investigations of materials (MAD).
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