Neutron Depth Profiling (NDP)

In its neutron beam facility, the OSURR is able to deliver a relatively-clean, small-sized (< 30 mm diameter) thermal neutron beam to an instrumented vacuum chamber, where neutron depth profiling can be performed. See the university's Nuclear Analysis and Radiation Sensor (NARS) Laboratory site for more information.

 

Eight charged-particle sensors in a vacuum chamber aimed at an neutron depth profiling test sample
Eight Si detectors mounted inside the NDP vacuum chamber in a ring format
Diagram showing how neutron depth profiling measures lithium density as a function of sample depth
The principle of using Neutron Depth Profiling for Li characterization in Li-ion battery

Multiple Detectors Increase Count Rates

OSU-NRL features the first ever implementation of multiple detectors for NDP increasing count rate nearly to level of national laboratory despite lower intensity.

 

Eight charged-particle sensors aimed at a neutron depth profiling test sample holder
Neutron Depth Profiling Detector Array and Mount