Chemistry Programs & Projects | |
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Wide-Angle Neutron Polarization Analysis
Last Updated Date: 06/27/2012 The capabilities of many neutron scattering instruments would be greatly enhanced by neutron polarization analyzers that can cover a wide angular … more
Precision Measurement of Radiative Neutron Decay Branching Ratio and Energy Spectrum
Last Updated Date: 06/27/2012 Although neutron decay is typically considered as a three-body process, in the radiative correction it is always accompanied by … more
Measurement of the Parity Non-Conserving Neutron Spin Rotation (PNC) in Liquid Helium
Last Updated Date: 06/27/2012 We recently completed a successful run of an experiment to study the strong interaction using weak interaction properties of the neutron. The … more
Search for Time Reversal Violation in Polarized Neutron Decay (emiT)
Last Updated Date: 06/27/2012 The "emiT" experiment searches for - or will set an improved upper bound on - the time-reversal asymmetry term in neutron beta decay. It … more
Precision Measurement of the Neutron-He3 Incoherent Scattering Length
Last Updated Date: 06/27/2012 The Neutron Interferometer and Optics Facility performed a precision measurement of the n- 3 He incoherent scattering length. Quantum … more
Measurement of the Neutron Magnetic Dipole Moment Using Schwinger Scattering
Last Updated Date: 06/27/2012 This experiment will measure Schwinger scattering in silicon. Previous attempts done by Shull and others did not produce the expected results. The … more
Neutron Interferometry with Polarized Neutrons as an Additional Degree of Freedom
Last Updated Date: 06/27/2012 Our goal is to apply Quantum Information Processing techniques to improve neutron interferometry contrast by making our final measurement … more
X-ray Detection with Large Area Avalanche Photodiodes for the Neutron Radiative Decay Experiment
Last Updated Date: 06/27/2012 Operation of the second neutron radiative decay experiment has been completed. In this experiment we observed the emission of photons … more
Continuous Spin-Exchange Optical Pumping in High Flux Neutron Beams
Last Updated Date: 06/27/2012 We collaborated on tests at the Insitut Laue Langevin (ILL) to study the effects of high flux neutron beams on spin-exchange optical pumping … more
Use of Quantum Error Coding in a 4-Blade Neutron Interferometer
Last Updated Date: 06/27/2012 We have designed a new type of neutron interferometer, which will be less sensitive to slow vibrations.
A Novel Optical Technique for Rapid Detection of Neutrons
Last Updated Date: 06/27/2012 Almost every instrument at the NCNR and other neutron scattering facilities depends on 3 He proportional tubes because of their high efficiency, … more
High-Efficiency Neutron Detection and Spectroscopy
Last Updated Date: 06/27/2012 Precise knowledge of the fast neutron spectrum and fluence is essential for several experimental endeavors requiring the low-background … more
Calibrated Neutron Sources
Last Updated Date: 06/27/2012 ANSI N42.35 requires 252 Cf neutron sources encapsulated in 1 cm of steel with a fluence of 2x10 4 n/s ±20%. more
Neutron Cross Section Standards
Last Updated Date: 06/27/2012 NIST continues to be deeply involved with measurements and evaluations of neutron cross section standards. NIST maintains a limited … more
Neutron Imaging of Lithium and Alkaline Batteries
Last Updated Date: 06/27/2012 A common topic in energy systems is the need for in situ measurement of the mass transport of light ion species such as hydrogen or lithium. … more |
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