Schematic illustration of the growth chamber.
The total pressure in the chamber can be increased up to 0.6 MPa.
The chamber has a caliber (ϕ) of 130 mm and an inside height (h) of 330 mm.
An air balloon is used for gas sampling in the experiment under 0.1 MPa to extrude the gas from the chamber.
A small fan is set in the middle of the chamber.