Alpha radioactive source nuclear battery based on micropore array collimator

Abstract

The invention relates to an alpha radioactive source nuclear battery based on a micropore array collimator, and aims to solve the problem that the output performance of an alpha radiation volt effect nuclear battery is reduced in a short time due to the fact that high-energy alpha particles generated by an alpha radioactive source cause large irradiation damage to a semiconductor transduction unit. The nuclear battery comprises a shell and an insulating base, the shell is provided with an open end, the insulating base is fixed at the open end of the shell, and a radioactive source substrate plate, a micropore array collimator and a silicon carbide semiconductor transducer are sequentially arranged on the insulating base in the shell from one side to the other side. The side, close to the micropore array collimator, of the radioactive source substrate plate is covered with an alpha radioactive source, and the positive electrode and the negative electrode of the battery are led out through the silicon carbide semiconductor transducer. According to the invention, the micropore array collimator is used for controlling the energy deposition distribution of the energy-carrying alpha particles in the silicon carbide semiconductor transducer, the irradiation damage of the alpha particles to the sensitive area of the silicon carbide semiconductor transducer is weakened, and the service life of the nuclear battery is effectively prolonged.

Description

technical field

[0001] The invention relates to an alpha radiation source nuclear battery, in particular to an alpha radiation source nuclear battery based on a microhole array collimator. Background technique

[0002] Nuclear batteries use the energy released by radioactive isotope decay to convert into electrical energy. Since the isotope decay process is not affected by external environments such as temperature, pressure, and magnetic field, nuclear batteries have the characteristics of strong environmental adaptability and good stability during work. Therefore, nuclear battery is a new type of power source with great potential, and it is expected to become the most ideal micro-battery in micromechanical electronic systems (MEMS).

[0003] Nuclear batteries mainly include primary nuclear batteries, thermoelectric conversion nuclear batteries, radiation-induced photovoltaic effect nuclear batteries and radiation-volt effect nuclear batteries.

[0004] The primary nuclear ...

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