Physics Programs & Projects | |
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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.
Alpha-gamma Counting for High Accuracy Fluence Measurements
Last Updated Date: 06/27/2012 Neutron fluence is measured by counting gamma-rays from the reaction n+ 10 B® 4 He+ 7 Li + g(478KeV) with a calibrated gamma detector. The … more
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
Evolution of Image Spatial Resolution
Last Updated Date: 06/27/2012 Measuring the through-plane water content in a hydrogen fuel cell is critical to understanding this complicated heat and mass transport … more
Characterization of Porous Transport Media for Hydrogen Fuel Cells
Last Updated Date: 06/27/2012 Efficiently managing water transport in proton exchange membrane fuel cells (PEMFCs) is critical to the performance, cost, and durability in order … more
New Manganese Sulfate Bath
Last Updated Date: 06/27/2012 Description: Many neutron sources required by Homeland Security have a lower neutron emission rate than is appropriate for the NIST calibration … more
Magnetically Trapped Neutron Lifetime Experiment
Last Updated Date: 06/27/2012 This program is a collaborative effort between NIST and NC State. It is designed to measure the neutron beta-decay lifetime t n using a … more |
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