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US 11,109,476 B2Granted
Filter
AssigneeHeron Neutron Medical Corp.
InventorsYen-Wan Hsueh Liu, Zhen-Fan You, Sheng Yang, Jyi-Tyan Yeh
Life of this patent
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Abstract
A filter is provided. The filter includes a mixed layer. The mixed layer includes aluminum, magnesium fluoride, and lithium fluoride. The mixed layer is composed of 1 part by volume of magnesium fluoride, 0.25 to 1 parts by volume of aluminum, and 0.003 to 0.02 parts by volume of lithium fluoride.
Claims3
A filter, comprising:
- a first layer, a second layer, and a mixed layer of aluminum, magnesium fluoride, and lithium fluoride,
- wherein
- the first layer is composed of iron,
- the second layer is composed of 1 part by volume of aluminum fluoride, 0.25 to 1 parts by volume of aluminum, and 0.013 to 0.02 parts by volume of lithium fluoride,
- the second layer is disposed between the first layer and the mixed layer,
- a material of the second layer further surrounds sidewalls of the first layer, and
- the mixed layer is composed of 1 part by volume of magnesium fluoride, 0.25 to 1 parts by volume of aluminum, and 0.003 to 0.02 parts by volume of lithium fluoride.
4 more elements
Dependencies are inferred from the claim text.