| 摘要 |
A gas cell unit includes a gas cell in which a gaseous alkali metal atom is sealed, a first heater to heat the gas cell, and a second heater which is provide to face the first heater across the gas cell and heats the gas cell. The first heater includes a first heating resistor which generates heat by energization, and the second heater includes a second heating resistor through which a current flows in the same direction as the direction of a current flowing through the first heating resistor and which generates heat by energization. Between the first heating resistor and the second heating resistor, a magnetic field generated by the energization to the first heating resistor and a magnetic field generated by the energization to the second heating resistor are mutually cancelled or weakened.
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