Large-gradient temperature field generating device for controlling alkali metal distribution in atomic gas chamber

Abstract

The invention discloses a large-gradient temperature field generating device for controlling alkali metal distribution in an atomic air chamber. The large-gradient temperature field generating devicecomprises a hot end, an atomic air chamber placer, an atomic air chamber, a heat insulation pad and a cold end, wherein the temperature rise of the hot end is controlled by using a heating sleeve, thetemperature of the atomic gas chamber placer is increased through heat radiation or heat conduction, it is ensured that the temperature in the atomic gas chamber is higher than the melting point of alkali metal, the atomic air chamber is arranged in the atomic air chamber placer, the heat insulation pad is arranged between the atomic air chamber placer and the cold end, the cold end temperature is lower than the melting point of alkali metal, and after the atomic gas chamber placer is placed into the atomic gas chamber, under a set temperature gradient, the alkali metal gathering position isthe contact position of the atomic gas chamber and the cold end. According to the invention, different placers can realize distribution control of alkali metals in square or cylindrical air chambers with different sizes, and the alkali metals in the atomic air chamber can be driven to converge at a working position by utilizing the temperature gradient of the hot end and the cold end.

Description

technical field [0001] The invention relates to the technical field of atomic gas chamber preparation, in particular to a device for controlling the distribution of alkali metal in the atomic gas chamber. Background technique [0002] Atomic gas chambers are widely used in new quantum inertial instruments such as atomic magnetometers, atomic gyroscopes, and atomic clocks. As the core component of photon quantum physics, the performance of the atomic gas chamber directly restricts the performance of the inertial instrument. This performance is directly related to the distribution of alkali metal in the gas chamber. When excessive alkali metal is distributed in the light path, it will affect the relaxation time of atomic polarization, which will reduce the precision of the quantum instrument and make its performance unstable. In addition, the life of the atomic gas chamber is determined by the consumption rate of the alkali metal. Measuring the content of the alkali metal in ...

AI Technical Summary

Problems solved by technology

At present, the effect of concentration of alkali metals by fire catch method depends on manual techniques, the concentration range is large, the controllability is poor, and the efficiency is low when dealing with multiple gas chambers

In addition, the existing rubidium catch device has a complex structure and is not easy to operate. It only achieves the accumulation of alkali metals at the same position for a specific gas chamber, which is not universal

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