Fig. 1

The proposed conical cylindrical chamber (CCC) with different radii at the top (RT) and bottom (RB). Here, RT denotes the radius of the chamber at the top surface, while RB represents the radius at the bottom surface.
The proposed conical cylindrical chamber (CCC) with different radii at the top (RT) and bottom (RB). Here, RT denotes the radius of the chamber at the top surface, while RB represents the radius at the bottom surface.