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Title: Phase-sensitive two-dimensional neutron shearing interferometer and Hartmann sensor

Abstract

A neutron imaging system detects both the phase shift and absorption of neutrons passing through an object. The neutron imaging system is based on either of two different neutron wavefront sensor techniques: 2-D shearing interferometry and Hartmann wavefront sensing. Both approaches measure an entire two-dimensional neutron complex field, including its amplitude and phase. Each measures the full-field, two-dimensional phase gradients and, concomitantly, the two-dimensional amplitude mapping, requiring only a single measurement.

Inventors:
Issue Date:
Research Org.:
Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1228042
Patent Number(s):
9207194
Application Number:
13/789,327
Assignee:
Lawrence Livermore National Security, LLC
Patent Classifications (CPCs):
G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
G - PHYSICS G21 - NUCLEAR PHYSICS G21K - TECHNIQUES FOR HANDLING PARTICLES OR IONISING RADIATION NOT OTHERWISE PROVIDED FOR
DOE Contract Number:  
AC52-07NA27344
Resource Type:
Patent
Resource Relation:
Patent File Date: 2013 Mar 07
Country of Publication:
United States
Language:
English
Subject:
46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY

Citation Formats

Baker, Kevin. Phase-sensitive two-dimensional neutron shearing interferometer and Hartmann sensor. United States: N. p., 2015. Web.
Baker, Kevin. Phase-sensitive two-dimensional neutron shearing interferometer and Hartmann sensor. United States.
Baker, Kevin. Tue . "Phase-sensitive two-dimensional neutron shearing interferometer and Hartmann sensor". United States. https://www.osti.gov/servlets/purl/1228042.
@article{osti_1228042,
title = {Phase-sensitive two-dimensional neutron shearing interferometer and Hartmann sensor},
author = {Baker, Kevin},
abstractNote = {A neutron imaging system detects both the phase shift and absorption of neutrons passing through an object. The neutron imaging system is based on either of two different neutron wavefront sensor techniques: 2-D shearing interferometry and Hartmann wavefront sensing. Both approaches measure an entire two-dimensional neutron complex field, including its amplitude and phase. Each measures the full-field, two-dimensional phase gradients and, concomitantly, the two-dimensional amplitude mapping, requiring only a single measurement.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2015},
month = {12}
}

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Works referenced in this record:

Characterization of the DT ice layer in a fusion capsule using a two-dimensional x-ray shearing interferometer
conference, August 2010


Design, fabrication, and characterization of diffraction gratings for neutron phase contrast imaging
journal, May 2008


Neutron Phase Imaging and Tomography
journal, June 2006


Test of a single crystal neutron interferometer
journal, April 1974


First realisation of a three-dimensional refraction contrast computerised neutron tomography
journal, August 2004

  • Strobl, M.; Treimer, W.; Hilger, A.
  • Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, Vol. 222, Issue 3-4, p. 653-658
  • https://doi.org/10.1016/j.nimb.2004.02.029

On neutron phase contrast imaging
journal, January 2008

  • Strobl, M.; Treimer, W.; Kardjilov, N.
  • Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, Vol. 266, Issue 1, p. 181-186
  • https://doi.org/10.1016/j.nimb.2007.10.016