Precise measurements of decay parameters in neutron beta decay as a means to probe the Standard Model (e.g. the neutron lifetime and the correlation between the outgoing electron and electron-antineutrino momenta).
Precise measurements of thermal and cold neutron fluences as a means to reduce the uncertainty in beam-type measurements of the neutron lifetime, and as a means to measure important neutron capture cross sections (e.g. boron and lithium)
Precise measurements of neutron source intensities using the manganese bath method as a means to reduce the uncertainty of neutron source calibrations for industry and government.
Radiation Physics Division
Neutron Physics Group
NIST, 1986 - present
Staff physicist, Ionizing Radiation Division, 1990 - present
Staff physicist, Quantum Metrology Division, 1986-1990
Research Associate, Cyclotron Laboratory, Princeton University, 1984 - 1986
Ph.D., Physics, Princeton University, 1984