High Z permanent magnets for radiation shielding
Abstract
A magnetic shielding material includes a material comprising manganese bismuth (MnBi) and tungsten (W), where a ratio of MnBi:W is in a range of 50:50 to about 70:30. A radiation shielding product includes a part including manganese bismuth (MnBi) and tungsten (W), and a plurality of layers having a defined thickness in a z-direction, wherein each layer extends along an x-y plane perpendicular to the z-direction. At least some of the plurality of layers form a functional gradient in the z-direction and/or along the x-y plane, and the functional gradient is defined by a first layer comprising a ratio of MnBi:W being less than 100:0 and an nth layer above the first layer comprising a ratio of MnBi:W greater than 0:100.
- Inventors:
- Issue Date:
- Research Org.:
- Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States); American Ceramic Technology, Poway, CA (United States)
- Sponsoring Org.:
- USDOE
- OSTI Identifier:
- 2221985
- Patent Number(s):
- 11705250
- Application Number:
- 17/112,726
- Assignee:
- Lawrence Livermore National Security, LLC (Livermore, CA); American Ceramic Technology (Poway, CA)
- DOE Contract Number:
- AC52-07NA27344
- Resource Type:
- Patent
- Resource Relation:
- Patent File Date: 12/04/2020
- Country of Publication:
- United States
- Language:
- English
Citation Formats
McCall, Scott, and Culbertson, Richard. High Z permanent magnets for radiation shielding. United States: N. p., 2023.
Web.
McCall, Scott, & Culbertson, Richard. High Z permanent magnets for radiation shielding. United States.
McCall, Scott, and Culbertson, Richard. Tue .
"High Z permanent magnets for radiation shielding". United States. https://www.osti.gov/servlets/purl/2221985.
@article{osti_2221985,
title = {High Z permanent magnets for radiation shielding},
author = {McCall, Scott and Culbertson, Richard},
abstractNote = {A magnetic shielding material includes a material comprising manganese bismuth (MnBi) and tungsten (W), where a ratio of MnBi:W is in a range of 50:50 to about 70:30. A radiation shielding product includes a part including manganese bismuth (MnBi) and tungsten (W), and a plurality of layers having a defined thickness in a z-direction, wherein each layer extends along an x-y plane perpendicular to the z-direction. At least some of the plurality of layers form a functional gradient in the z-direction and/or along the x-y plane, and the functional gradient is defined by a first layer comprising a ratio of MnBi:W being less than 100:0 and an nth layer above the first layer comprising a ratio of MnBi:W greater than 0:100.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2023},
month = {7}
}
Works referenced in this record:
Magnetic properties of large-scaled MnBi bulk magnets
journal, June 2017
- Kim, Sumin; Moon, Hongjae; Jung, Hwaebong
- Journal of Alloys and Compounds, Vol. 708
Development of MnBi permanent magnet: Neutron diffraction of MnBi powder
journal, May 2014
- Cui, J.; Choi, J. P.; Li, G.
- Journal of Applied Physics, Vol. 115, Issue 17
Radiation shield with magnetic properties
patent, May 2017
- Culbertson, Richard; Ragan, Randall M.; Stupak, Jr., Joseph J.
- US Patent Document 9,666,317