A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Neutron shielding evaluation of concretes and mortars: A review
https://orcid.org/0000-0002-2547-7601
Highlights A complex method for the evaluation of neutron shielding of concretes and mortars is needed. It should take into account both fast neutron attenuation and thermal neutron absorption. A method based on the macroscopic cross-section calculation for compositions is proposed. Historical concretes and mortars investigated in the literature have been evaluated. The efficiency of material modification for increasing neutron absorption has been proved.
Abstract The purpose of this research is to present a complex method for the evaluation of the shielding efficiency of concretes and mortars used in biological shields against ionizing radiation, especially against neutrons. Since the commonly used fast neutron effective removal cross-section calculation does not take into account thermal neutron absorption reactions, an original method adopted from the fast neutron effective removal cross-section calculation based on the macroscopic cross-section calculation for compositions is therefore proposed. This method was used to compare the shielding efficiency of concretes and mortars previously investigated by researchers in the literature. It was used also to prove the efficiency of material modification by polymers, gadolinium and boron compounds, which significantly improves thermal neutron absorption. The proposed complex neutron shielding evaluation method will be very useful in the design of tailored shielding concrete in the future.
Neutron shielding evaluation of concretes and mortars: A review
https://orcid.org/0000-0002-2547-7601
Highlights A complex method for the evaluation of neutron shielding of concretes and mortars is needed. It should take into account both fast neutron attenuation and thermal neutron absorption. A method based on the macroscopic cross-section calculation for compositions is proposed. Historical concretes and mortars investigated in the literature have been evaluated. The efficiency of material modification for increasing neutron absorption has been proved.
Abstract The purpose of this research is to present a complex method for the evaluation of the shielding efficiency of concretes and mortars used in biological shields against ionizing radiation, especially against neutrons. Since the commonly used fast neutron effective removal cross-section calculation does not take into account thermal neutron absorption reactions, an original method adopted from the fast neutron effective removal cross-section calculation based on the macroscopic cross-section calculation for compositions is therefore proposed. This method was used to compare the shielding efficiency of concretes and mortars previously investigated by researchers in the literature. It was used also to prove the efficiency of material modification by polymers, gadolinium and boron compounds, which significantly improves thermal neutron absorption. The proposed complex neutron shielding evaluation method will be very useful in the design of tailored shielding concrete in the future.
Neutron shielding evaluation of concretes and mortars: A review
https://orcid.org/0000-0002-2547-7601
Highlights A complex method for the evaluation of neutron shielding of concretes and mortars is needed. It should take into account both fast neutron attenuation and thermal neutron absorption. A method based on the macroscopic cross-section calculation for compositions is proposed. Historical concretes and mortars investigated in the literature have been evaluated. The efficiency of material modification for increasing neutron absorption has been proved.
Abstract The purpose of this research is to present a complex method for the evaluation of the shielding efficiency of concretes and mortars used in biological shields against ionizing radiation, especially against neutrons. Since the commonly used fast neutron effective removal cross-section calculation does not take into account thermal neutron absorption reactions, an original method adopted from the fast neutron effective removal cross-section calculation based on the macroscopic cross-section calculation for compositions is therefore proposed. This method was used to compare the shielding efficiency of concretes and mortars previously investigated by researchers in the literature. It was used also to prove the efficiency of material modification by polymers, gadolinium and boron compounds, which significantly improves thermal neutron absorption. The proposed complex neutron shielding evaluation method will be very useful in the design of tailored shielding concrete in the future.
Neutron shielding evaluation of concretes and mortars: A review
Piotrowski, Tomasz (author)
2020-12-30
Article (Journal)
Electronic Resource
English
| Engineering Index Backfile | 1928
Workability of concretes and mortars
| Engineering Index Backfile | 1937