Magnetism measurement apparatus, gas cell, method for manufacturing magnetism measurement apparatus, and method for manufacturing gas cell
AssigneeSeiko Epson Corporation
InventorsEiichi FUJII, Kimio NAGASAKA, Mitsutoshi MIYASAKA
Life of this patent
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Abstract
A magnetism measurement apparatus that measures a magnetic field includes a gas cell including a primary chamber, a reservoir, and a exhaust hole that allows the primary chamber and the reservoir to communicate with each other. The primary chamber and the reservoir are filled with an alkali metal gas, and at least one of an alkali metal solid and an alkali metal liquid is placed in the reservoir.
Claims11
A magnetism measurement apparatus that measures a magnetic field, the apparatus comprising:
- a gas cell including a first chamber, a second chamber, and a exhaust section that allows the first chamber and the second chamber to communicate with each other,
- wherein the first chamber is filled with a gas of an alkali metal, and
- the gas of the alkali metal and at least one of a solid and a liquid of the alkali metal are placed in the second chamber.
A gas cell comprising:
- a first chamber;
- a second chamber;
- and a exhaust section that allows the first chamber and the second chamber to communicate with each other,
- wherein the first chamber is filled with a gas of an alkali metal, and
- the gas of the alkali metal and at least one of a solid and a liquid of the alkali metal are placed in the second chamber.
A method for manufacturing a magnetism measurement apparatus that measures a magnetic field, the method comprising:
- providing a gas cell including a first chamber, a second chamber, and a exhaust section that allows the first chamber and the second chamber to communicates with each other, placing an ampule in which a solid of an alkali metal is enclosed in the second chamber of the gas cell, and hermetically sealing a space including the first chamber, the second chamber, and the exhaust section;
- breaking the ampule to place at least one of the solid and a liquid of the alkali metal and a gas of the alkali metal in the second chamber;
- and
- filling the first chamber with the gas of the alkali metal.
A method for manufacturing a gas cell, the method comprising:
- placing an ampule in which a solid of an alkali metal is enclosed in a second chamber that communicates with a first chamber via a exhaust section and hermetically sealing the first chamber, the exhaust section, and the second chamber;
- breaking the ampule to place at least one of a solid and a liquid of the alkali metal in the second chamber;
- and
- filling the first chamber and the second chamber with a gas of the alkali metal.
Dependencies are inferred from the claim text.