Award Abstract #0132641
MRI: Large high-efficiency neutron array detector at MSU
NSF Org: |
PHY
Division of Physics
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Initial Amendment Date: |
September 12, 2001 |
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Latest Amendment Date: |
May 16, 2003 |
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Award Number: |
0132641 |
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Award Instrument: |
Standard Grant |
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Program Manager: |
Bradley D. Keister
PHY Division of Physics
MPS Directorate for Mathematical & Physical Sciences
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Start Date: |
September 1, 2001 |
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Expires: |
May 31, 2004 (Estimated) |
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Awarded Amount to Date: |
$96626 |
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Investigator(s): |
Warren Rogers rogers@westmont.edu (Principal Investigator)
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Sponsor: |
Westmont College
955 La Paz Road
Santa Barbara, CA 93108 805/969-5051
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NSF Program(s): |
MAJOR RESEARCH INSTRUMENTATION
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Field Application(s): |
0000099 Other Applications NEC
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Program Reference Code(s): |
OTHR, 0000
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Program Element Code(s): |
1189
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ABSTRACT
The consortium between Michigan State University and Florida State
University proposes the construction of a highly efficient,
large-area neutron detector for the detection of high-energy
neutrons to be used in experiments with fast rare isotopes at the
National Superconducting Cyclotron Laboratory (NSCL). This
consortium is joined by Ball State University, Central Michigan
University, Concordia College in Moorhead, Minn., Hope College,
Indiana University at South Bend, Millikin University, Western
Michigan University, and Westmont College, each of which will
assemble and test one complete layer of the detector.
The proposed detector consists of 144 horizontal blocks of plastic
scintillator arranged in 9 layers of 16 detectors each, covering an
area of 2.0 m wide by 1.6 m high. The detector is position
sensitive and features multi-hit capability. The addition of
passive iron converters enhances the detection efficiency for
neutrons with energies above 100 MeV for an average efficiency of up
to 70%. The high detection efficiency will allow the investigation
of very neutron-rich nuclei that can only be produced with small
intensities.
The detector will be used in connection with the new sweeper magnet
with its focal plane detectors in stand-alone mode as well as with
the combination of sweeper magnet and the S800 magnetic
spectrograph. It will therefore be essential for the experimental
program at the coupled cyclotron facility. The detector can be
optimized for even higher beam energies with only minor
modifications due to its modular design. It could be the first
detector to be used for fast fragmentation beams at the Rare Isotope.
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