TY - JOUR
T1 - 4D Tomography for neutron depth profiling applications
AU - Neagu, R.
AU - Golenev, S.
AU - Werner, L.
AU - Berner, C.
AU - Gilles, R.
AU - Revay, Z.
AU - Ziegele, L.
AU - Plomp, J.
AU - Märkisch, B.
AU - Gernhäuser, R.
PY - 2024
Y1 - 2024
N2 - High-rate Neutron Depth Profiling (NDP) is a very efficient and precise probe for studying the evolution of lithium concentration in thin-layer structures, e.g., battery electrodes. NDP is typically limited to a one-dimensional depth analysis summed over the profile area covered by the neutron beam. We developed a detector system based on double-sided silicon strip detectors (DSSSD) with extremely thin and homogeneous entrance windows to provide a new quality of NDP measurements in 3+1 dimensions for the N4DP instrument at the FRM II in Garching, Germany. Using the 6Li(n, α)3H reaction in an experiment conducted at the research reactor in Delft, we achieved a lateral position resolution down to ∼100μm and an energy resolution with FWHM≈10keV for the triton particles at energies of 2.7MeV. High-resolution 3D pictures with a contrast uncertainty <10% per pixel can be achieved faster than 1 picture per minute. This rate can be adjusted individually for each experiment by sacrificing granularity in the position measurement.
AB - High-rate Neutron Depth Profiling (NDP) is a very efficient and precise probe for studying the evolution of lithium concentration in thin-layer structures, e.g., battery electrodes. NDP is typically limited to a one-dimensional depth analysis summed over the profile area covered by the neutron beam. We developed a detector system based on double-sided silicon strip detectors (DSSSD) with extremely thin and homogeneous entrance windows to provide a new quality of NDP measurements in 3+1 dimensions for the N4DP instrument at the FRM II in Garching, Germany. Using the 6Li(n, α)3H reaction in an experiment conducted at the research reactor in Delft, we achieved a lateral position resolution down to ∼100μm and an energy resolution with FWHM≈10keV for the triton particles at energies of 2.7MeV. High-resolution 3D pictures with a contrast uncertainty <10% per pixel can be achieved faster than 1 picture per minute. This rate can be adjusted individually for each experiment by sacrificing granularity in the position measurement.
KW - Double-sided silicon strip detector
KW - FRM II
KW - N4DP-instrument
KW - Neutron depth profiling
KW - RID
KW - Self-triggering electronics
UR - http://www.scopus.com/inward/record.url?scp=85197336695&partnerID=8YFLogxK
U2 - 10.1016/j.nima.2024.169543
DO - 10.1016/j.nima.2024.169543
M3 - Article
AN - SCOPUS:85197336695
SN - 0168-9002
VL - 1065
JO - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
JF - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
M1 - 169543
ER -