<abstract xmlns="http://www.w3.org/1999/xhtml">

Radioisotope applications in industrial process inspection and evaluation using gamma-ray emitters provide otherwise unavailable information. Offering alternative gamma-ray sources can support the technology by complementing sources’ availability and radiation safety. This work proposes to replace gamma-ray from radioisotopes with prompt gamma-ray from the interaction of neutrons with stable isotopes injected into the industrial process or with the structural material of the industrial process equipment. Monte Carlo N-Particle Transport Code (MCNP5) was used to simulate the irradiation of two-phase flow pipes by 252Cf neutron source. Two simulations were run for each pipe, with and without mixing the liquid phase with the stable isotope 157Gd. The detected gamma-ray spectra were analysed, and images of the two phases inside the pipes were produced. The images were compared to images obtained from simulations of gamma transmission measurement using 60Co. Furthermore, results for prompt gamma computed tomography (CT) were presented and discussed. The studies’ outcomes indicate the potential of prompt gamma-ray to carry out the sealed sources applications of gamma transmission measurements and imaging.
</abstract>

Radioisotope applications in industrial process inspection and evaluation using gamma-ray emitters provide otherwise unavailable information. Offering alternative gamma-ray sources can support the technology by complementing sources’ availability and radiation safety. This work proposes to replace gamma-ray from radioisotopes with prompt gamma-ray from the interaction of neutrons with stable isotopes injected into the industrial process or with the structural material of the industrial process equipment. Monte Carlo N-Particle Transport Code (MCNP5) was used to simulate the irradiation of two-phase flow pipes by 252Cf neutron source. Two simulations were run for each pipe, with and without mixing the liquid phase with the stable isotope 157Gd. The detected gamma-ray spectra were analysed, and images of the two phases inside the pipes were produced. The images were compared to images obtained from simulations of gamma transmission measurement using 60Co. Furthermore, results for prompt gamma computed tomography (CT) were presented and discussed. The studies’ outcomes indicate the potential of prompt gamma-ray to carry out the sealed sources applications of gamma transmission measurements and imaging.

Prompt gamma-ray methods for industrial process evaluation: A simulation study

Nukleonika

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

{"article-title":"Prompt gamma-ray methods for industrial process evaluation: A simulation study"}

Radioisotope applications in industrial process inspection and evaluation using gamma-ray emitters provide otherwise unavailable information. Offering...

Material	Nuclides	Atom fraction	Total collisions	Collisions weight	Weight lost to capture	Photons produced	Photon weight produced%
Air	C	1.50E–04	4	1.68E–08	0.00E+00	0	0.00
	N	7.84E–01	49 813	2.09E–04	1.06E–05	515	2.16E–04
	O	2.11E–01	15 614	6.55E–05	2.77E–07	42	1.76E–05
	Ar	4.67E–03	309	1.30E–06	0.00E+00	66	2.77E–05
Water + 5% Gd	H	6.65E–01	193 776 900	8.13E–01	2.67E–04	35 038	1.47E–02
	O	3.33E–01	37 866 142	1.59E–01	4.52E–04	91 459	3.84E–02
	¹⁵⁷Gd	2.01E–03	6 394 471	2.68E–02	2.37E–02	19 207 904	8.25E–02
Steel	C	2.28E–02	484 984	2.03E–03	1.46E–06	2 726	1.14E–03
Steel	Fe	9.77E–01	29 489 449	1.24E–01	5.04E–04	7 955 587	3.34E–02
NaI	Na	5.00E–01	8 353 033	3.50E–02	4.11E–05	1 276 750	5.36E–03
NaI	I	5.00E–01	14 164 504	5.94E–02	1.88E–03	8 494 594	3.56E–02

Prompt gamma-ray methods for industrial process evaluation: A simulation study

Article Category: Original Paper

Pubblicato online: 17 feb 2022

Pagine: 11 - 18

Ricevuto: 01 feb 2021

Accettato: 09 nov 2021

DOI: https://doi.org/10.2478/nuka-2022-0001

Parole chiave
Prompt gamma-ray, Sealed sources, Radiotracers, Industrial process

© 2022 Mohammed Siddig H. Mohammed et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Fig. 1

Fig. 2

Fig. 3

Fig. 4

Fig. 5

Fig. 6

Fig. 7

Fig. 8

Fig. 9

Neutrons interactions with air, water, gadolinium, steel, and the detector

Prompt gamma-ray methods for industrial process evaluation: A simulation study

Article Category: Original Paper

Pubblicato online: 17 feb 2022

Pagine: 11 - 18

Ricevuto: 01 feb 2021

Accettato: 09 nov 2021

DOI: https://doi.org/10.2478/nuka-2022-0001

Parole chiavePrompt gamma-ray, Sealed sources, Radiotracers, Industrial process

© 2022 Mohammed Siddig H. Mohammed et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Fig. 1

Fig. 2

Fig. 3

Fig. 4

Fig. 5

Fig. 6

Fig. 7

Fig. 8

Fig. 9

Neutrons interactions with air, water, gadolinium, steel, and the detector

Parole chiave
Prompt gamma-ray, Sealed sources, Radiotracers, Industrial process