Erratum: Modeling Detector Response for Neutron Depth Profiling

Published

August 10, 2003

Author(s)

Kevin Coakley, R. G. Downing, George P. Lamaze, H C. Hofsass, C Ronning, J Biegel

Abstract

In a previous paper, we analyzed the Neutron Depth Profiling energy spectrum collected from a diamond-like carbon (DLC) sample doped with boron. Based on a numerical model for the Detector Response Function (DRF), we estimated a theoretical boron profile consisting of four plateaus by a nonlinear regression method. In our approach, we predicted the observed NDP spectrum based on the estimated boron profile and the DRF which depends on energy broadening due to straggling, multiple scattering and the energy resolution of the detector. To get good agreement between the observed and predicted NDP spectrum, we inflated the energy broadening due to straggling. However, we underestimated the contribution of multiple scattering for the DLC sample due to a computational error. When the predicted energy broadening due to multiple scattering is properly computed, the observed and predicted NDP spectrum agree well without inflating the energy broadening due to straggling. The new estimate of the boron profile, determined by fitting a four plateau model to the observed NDP spectrum, is in reasonably good agreement with the theoretical boron profile.

Citation

Nuclear Instruments & Methods in Physics Research Section A-Accelerators Spectrometers Detectors and Associated Equipment

Pub Type

Journals

Citation

Coakley, K. , Downing, R. , Lamaze, G. , Hofsass, H. , Ronning, C. and Biegel, J. (2003), Erratum: Modeling Detector Response for Neutron Depth Profiling, Nuclear Instruments & Methods in Physics Research Section A-Accelerators Spectrometers Detectors and Associated Equipment (Accessed October 31, 2024)