scholarly journals Nondestructive Isotope Detection by Using Laser Compton Scattering Gamma-Ray Based Nuclear Resonance Fluorescence

2012 ◽  
Vol 40 (3) ◽  
pp. 188
Author(s):  
Hideaki OHGAKI ◽  
Takehito HAYAKAWA ◽  
Izuru DAITO
Keyword(s):  
Compton Scattering ◽  
Gamma Ray ◽  
Nuclear Resonance ◽  
Resonance Fluorescence ◽  
Nuclear Resonance Fluorescence ◽  
Laser Compton Scattering

Nondestructive Detection of Heavily Shielded Materials by Using Nuclear Resonance Fluorescence with a Laser-Compton Scattering γ-ray Source

2009 ◽  
Vol 2 ◽  
pp. 036502 ◽  
Author(s):  
Nobuhiro Kikuzawa ◽  
Ryoichi Hajima ◽  
Nobuyuki Nishimori ◽  
Eisuke Minehara ◽  
Takehito Hayakawa ◽  
...  
Keyword(s):  
Compton Scattering ◽  
Nuclear Resonance ◽  
Resonance Fluorescence ◽  
Nondestructive Detection ◽  
Nuclear Resonance Fluorescence ◽  
Γ Ray ◽  
Laser Compton Scattering

scholarly journals Design of narrow-band Compton scattering sources for nuclear resonance fluorescence

2011 ◽  
Vol 14 (5) ◽  
Author(s):  
F. Albert ◽  
S. G. Anderson ◽  
D. J. Gibson ◽  
R. A. Marsh ◽  
S. S. Wu ◽  
...  
Keyword(s):  
Compton Scattering ◽  
Narrow Band ◽  
Nuclear Resonance ◽  
Resonance Fluorescence ◽  
Nuclear Resonance Fluorescence

Proposal of Nondestructive Radionuclide Assay Using a High-Flux Gamma-Ray Source and Nuclear Resonance Fluorescence

2008 ◽  
Vol 45 (5) ◽  
pp. 441-451 ◽  
Author(s):  
Ryoichi HAJIMA ◽  
Takehito HAYAKAWA ◽  
Nobuhiro KIKUZAWA ◽  
Eisuke MINEHARA
Keyword(s):  
Gamma Ray ◽  
Nuclear Resonance ◽  
High Flux ◽  
Resonance Fluorescence ◽  
Nuclear Resonance Fluorescence

scholarly journals Three-Dimensional Nondestructive Isotope-Selective Tomographic Imaging of 208Pb Distribution via Nuclear Resonance Fluorescence

2021 ◽  
Vol 11 (8) ◽  
pp. 3415
Author(s):  
Khaled Ali ◽  
Heishun Zen ◽  
Hideaki Ohgaki ◽  
Toshiteru Kii ◽  
Takehito Hayakawa ◽  
...  
Keyword(s):  
Gamma Ray ◽  
Three Dimensional ◽  
Maximum Energy ◽  
Nuclear Resonance ◽  
Ct Image ◽  
Resonance Fluorescence ◽  
Transmission Method ◽  
Pixel Resolution ◽  
Nuclear Resonance Fluorescence ◽  
Isotope Distributions

Combining the nuclear resonance fluorescence (NRF) transmission method with computed tomography (CT) can be a novel method for imaging the isotope distributions, which is indispensable in nuclear engineering. We performed an experiment to reconstruct a three-dimensional NRF-CT image with isotope selectivity of enriched lead isotope rods (208Pb) together with a set of different rods, including another enriched isotope (206Pb), iron, and aluminum rods, inserted into a cylindrical aluminum holder. Using a laser Compton scattering (LCS) gamma ray beam with a 5.528 MeV maximum energy, 2 mm beam size, and 10 photon·s−1·eV−1 flux density, which is available at the BL1U beamline in the ultraviolet synchrotron orbital radiation-III (UVSOR-III) synchrotron radiation facility at the Institute of Molecular Science at the National Institutes of Natural Sciences in Japan, and we excited the Jπ = 1− NRF level at 5.512 MeV in 208Pb. An isotope-selective three-dimensional NRF-CT image of the 208Pb isotope distribution was experimentally obtained for the first time with a pixel resolution of 4 mm in the horizontal plane.

scholarly journals Fusion Visualization Technique to Improve a Three-Dimensional Isotope-Selective CT Image Based on Nuclear Resonance Fluorescence with a Gamma-CT Image

2021 ◽  
Vol 11 (24) ◽  
pp. 11866
Author(s):  
Khaled Ali ◽  
Heishun Zen ◽  
Hideaki Ohgaki ◽  
Toshiteru Kii ◽  
Takehito Hayakawa ◽  
...  
Keyword(s):  
Gamma Ray ◽  
Three Dimensional ◽  
Image Resolution ◽  
Nuclear Resonance ◽  
Ct Image ◽  
Resonance Fluorescence ◽  
Beam Size ◽  
Transmission Method ◽  
Nuclear Resonance Fluorescence ◽  
Fusion Visualization

One of the most noteworthy aspects of computed tomography (CT) based on the nuclear resonance fluorescence (NRF) transmission method is the isotope selectivity that makes it possible to discern an isotope of interest from other isotopes within a sample. We experimentally obtained a three-dimensional (3D) isotope-selective CT image based on the NRF transmission method (3D NRF-CT) for the enriched lead isotope distribution of 208Pb in a cylindrical holder in a previous study. The cylindrical holder’s diameter and height are 25 mm and 20 mm, respectively. The NRF-CT imaging technique requires a considerable data accumulation time. It took 48 h to obtain an image with a resolution of 4 mm/pixel in the horizontal plane and 8 mm/pixel in the vertical plane using a laser Compton scattering (LCS) gamma-ray beam with a beam size of 2 mm and a flux density of 10 photons/s/eV. Improving the NRF-CT image resolution with the existing hardware is challenging. Therefore, we proposed an alternative method to improve the NRF-CT image resolution using the fusion visualization (FV) technique by combining the NRF-CT image including isotopic information with a gamma-CT image, which provides better pixel resolution. The 3D gamma-CT image for the same sample was measured at the same beamline BL1U in the ultraviolet synchrotron orbital radiation-III (UVSOR-III) synchrotron radiation facility at the Institute of Molecular Science at the National Institutes of Natural Sciences in Japan under similar experimental conditions except for the LCS gamma-ray beam flux and beam size. Obtaining a 3D gamma-CT image with a resolution of 1 mm/pixel took 5 h using an LCS gamma-ray beam with a beam size of 1 mm and a flux density of 0.7 photons/s/eV. The data processing of the FV technique has been developed, and the 3D NRF-CT image quality was improved.

Nuclear Resonance Fluorescence inGe72andGe74

1956 ◽  
Vol 101 (1) ◽  
pp. 286-294 ◽  
Author(s):  
Franz R. Metzger
Keyword(s):  
Nuclear Resonance ◽  
Resonance Fluorescence ◽  
Nuclear Resonance Fluorescence

Nuclear Resonance Fluorescence inCu65

1968 ◽  
Vol 171 (4) ◽  
pp. 1257-1260 ◽  
Author(s):  
F. R. Metzger
Keyword(s):  
Nuclear Resonance ◽  
Resonance Fluorescence ◽  
Nuclear Resonance Fluorescence
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