Aerosol generation device and heater

An aerosol generation device, comprising a chamber, a heater, and a core;

• wherein the heater comprises:
• an elongated base body, having a proximal end, a distal end, and a closed space formed inside the base body, wherein the proximal end is configured to be inserted into an aerosol-forming substrate received in the chamber, and the closed space is filled with a working gas;
• and
• a first electrode and a second electrode spaced apart from each other, wherein the first electrode and the second electrode are both partially accommodated in the closed space and extend from the closed space to outside of the base body, and the first electrode and the second electrode are configured to receive electric power provided by the core to generate an electric field between the first electrode and the second electrode;
• and
• the working gas is ionized to form a plasma under an action of the electric field to generate heat to heat the aerosol-forming substrate.