Method for manufacturing magnetism measurement device, method for manufacturing gas cell, magnetism measurement device, and gas cell
AssigneeSeiko Epson Corporation
InventorsEiichi FUJII, Kimio NAGASAKA
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Abstract
A method for manufacturing a magnetism measurement device which measures a magnetic field generated from a living body, includes: arranging an ampoule made of borosilicate glass and having a hollow part filled with a solid alkali metal, in a void in a cell section made of quartz glass, and then sealing the cell section; and casting a pulse laser beam on the ampoule through the cell section and thus forming a penetration hole in the ampoule. The pulse laser beam has an energy of 20 μJ/pulse to 200 μJ/pulse. The absorption coefficient of quarts glass for the pulse laser beam is lower than the absorption coefficient of borosilicate glass for the pulse laser beam.
Claims18
A method for manufacturing a magnetism measurement device which measures a magnetic field generated from a living body, the method comprising:
- arranging, in a void in a cell section made of a first glass, an ampoule made of a second glass different from the first glass and having a hollow part filled with a material, and then sealing the cell section;
- and
- casting pulse light on the ampoule through the cell section and thus forming a penetration hole in the ampoule;
- the pulse light having an energy of 20 μJ/pulse to 200 μJ/pulse.
A method for manufacturing a gas cell, comprising:
- arranging, in a void in a cell section made of a first glass, an ampoule made of a second glass different from the first glass and having a hollow part filled with a material, and then sealing the cell section;
- and
- casting pulse light on the ampoule through the cell section and thus forming a penetration hole in the ampoule;
- the pulse light having an energy of 20 μJ/pulse to 200 μJ/pulse.
Dependencies are inferred from the claim text.