Higher order correction and spectral deconvolution of wavelength-resolved neutron transmission imaging at the CONRAD-2 instrument
This paper uses a Fourier self-deconvolution method for improving the wavelength resolution in transmission experiments at continuous neutron sources utilizing a double-crystal monochromator device to probe as well as correct the generation of higher-order neutron scattering in a monochromatic neutr...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2023-07-01
|
| Series: | Results in Optics |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2666950123001323 |
| _version_ | 1797733839004499968 |
|---|---|
| author | Ala'a Al-Falahat Nikolay Kardjilov Talib K. Murtadha Robin Woracek Saad Alrwashdeh Ingo Manke |
| author_facet | Ala'a Al-Falahat Nikolay Kardjilov Talib K. Murtadha Robin Woracek Saad Alrwashdeh Ingo Manke |
| author_sort | Ala'a Al-Falahat |
| collection | DOAJ |
| description | This paper uses a Fourier self-deconvolution method for improving the wavelength resolution in transmission experiments at continuous neutron sources utilizing a double-crystal monochromator device to probe as well as correct the generation of higher-order neutron scattering in a monochromatic neutron beam. The cold neutron radiography CONRAD-2 equipment has been utilized to resolve the steel transmission spectra of changing BCC phase and FCC phase fractions. Therefore, both low and high-spectral resolution instruments with equivalent wavelength resolution have been proposed. The primary benefit of Fourier self-deconvolution is its ability to precisely narrow individual bands without modifying their relative position or the total band area. Thus, the resolution of the transmission spectrum has been improved by a factor of 3.16, and the info that the sample material comprises two crystallographic phases has been determined by the wavelength resolution improvement employing the deconvolution approach. Additionally, the slight variation in Bragg edge position for different phase fractions and the locations of the double phase Bragg edges have also been obtained using the ray-tracing simulation tool McStas. The high resolution neutron wavelength selection experiment with the ESS test_beamline (V20) instrument employing the neutron time-of-flight detection demonstrates the precision of the resolving steel Bragg edge. |
| first_indexed | 2024-03-12T12:35:23Z |
| format | Article |
| id | doaj.art-888312df1f204d37861006820aa91821 |
| institution | Directory Open Access Journal |
| issn | 2666-9501 |
| language | English |
| last_indexed | 2024-03-12T12:35:23Z |
| publishDate | 2023-07-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Results in Optics |
| spelling | doaj.art-888312df1f204d37861006820aa918212023-08-29T04:18:15ZengElsevierResults in Optics2666-95012023-07-0112100480Higher order correction and spectral deconvolution of wavelength-resolved neutron transmission imaging at the CONRAD-2 instrumentAla'a Al-Falahat0Nikolay Kardjilov1Talib K. Murtadha2Robin Woracek3Saad Alrwashdeh4Ingo Manke5Department of Mechanical Engineering, Mutah University, Mutah, Al-Karak 61710 P.O. Box 7, Jordan; Corresponding author.Helmholtz-Zentrum Berlin, Hahn-Meitner-Platz 1, Berlin 14109, GermanyDepartment of Mechanical Engineering, Mutah University, Mutah, Al-Karak 61710 P.O. Box 7, JordanEuropean Spallation Source ERIC, PO Box 176, Lund 22100, SwedenDepartment of Mechanical Engineering, Mutah University, Mutah, Al-Karak 61710 P.O. Box 7, JordanHelmholtz-Zentrum Berlin, Hahn-Meitner-Platz 1, Berlin 14109, GermanyThis paper uses a Fourier self-deconvolution method for improving the wavelength resolution in transmission experiments at continuous neutron sources utilizing a double-crystal monochromator device to probe as well as correct the generation of higher-order neutron scattering in a monochromatic neutron beam. The cold neutron radiography CONRAD-2 equipment has been utilized to resolve the steel transmission spectra of changing BCC phase and FCC phase fractions. Therefore, both low and high-spectral resolution instruments with equivalent wavelength resolution have been proposed. The primary benefit of Fourier self-deconvolution is its ability to precisely narrow individual bands without modifying their relative position or the total band area. Thus, the resolution of the transmission spectrum has been improved by a factor of 3.16, and the info that the sample material comprises two crystallographic phases has been determined by the wavelength resolution improvement employing the deconvolution approach. Additionally, the slight variation in Bragg edge position for different phase fractions and the locations of the double phase Bragg edges have also been obtained using the ray-tracing simulation tool McStas. The high resolution neutron wavelength selection experiment with the ESS test_beamline (V20) instrument employing the neutron time-of-flight detection demonstrates the precision of the resolving steel Bragg edge.http://www.sciencedirect.com/science/article/pii/S2666950123001323Fourier self-deconvolutionWavelength resolutionHigher order scatteringTransmission spectroscopyCrystallographic phasesBragg edge |
| spellingShingle | Ala'a Al-Falahat Nikolay Kardjilov Talib K. Murtadha Robin Woracek Saad Alrwashdeh Ingo Manke Higher order correction and spectral deconvolution of wavelength-resolved neutron transmission imaging at the CONRAD-2 instrument Results in Optics Fourier self-deconvolution Wavelength resolution Higher order scattering Transmission spectroscopy Crystallographic phases Bragg edge |
| title | Higher order correction and spectral deconvolution of wavelength-resolved neutron transmission imaging at the CONRAD-2 instrument |
| title_full | Higher order correction and spectral deconvolution of wavelength-resolved neutron transmission imaging at the CONRAD-2 instrument |
| title_fullStr | Higher order correction and spectral deconvolution of wavelength-resolved neutron transmission imaging at the CONRAD-2 instrument |
| title_full_unstemmed | Higher order correction and spectral deconvolution of wavelength-resolved neutron transmission imaging at the CONRAD-2 instrument |
| title_short | Higher order correction and spectral deconvolution of wavelength-resolved neutron transmission imaging at the CONRAD-2 instrument |
| title_sort | higher order correction and spectral deconvolution of wavelength resolved neutron transmission imaging at the conrad 2 instrument |
| topic | Fourier self-deconvolution Wavelength resolution Higher order scattering Transmission spectroscopy Crystallographic phases Bragg edge |
| url | http://www.sciencedirect.com/science/article/pii/S2666950123001323 |
| work_keys_str_mv | AT alaaalfalahat higherordercorrectionandspectraldeconvolutionofwavelengthresolvedneutrontransmissionimagingattheconrad2instrument AT nikolaykardjilov higherordercorrectionandspectraldeconvolutionofwavelengthresolvedneutrontransmissionimagingattheconrad2instrument AT talibkmurtadha higherordercorrectionandspectraldeconvolutionofwavelengthresolvedneutrontransmissionimagingattheconrad2instrument AT robinworacek higherordercorrectionandspectraldeconvolutionofwavelengthresolvedneutrontransmissionimagingattheconrad2instrument AT saadalrwashdeh higherordercorrectionandspectraldeconvolutionofwavelengthresolvedneutrontransmissionimagingattheconrad2instrument AT ingomanke higherordercorrectionandspectraldeconvolutionofwavelengthresolvedneutrontransmissionimagingattheconrad2instrument |