TABLE 3.

The chamber types, electrometer models, and the model of water tank.

Center	Ionization chamber	Electrometer model	Water phantom model
1	PTW 30013	PTW Tandem	PTW Beam Scan Lift
	PTW 34045
2	PTW 30013	PTW Unidos	Sun Nuclear 3D Scanner
	PTW 34001
3	IBA FC65‐G	IBA Dose 1	IBA Water tank 1D
	IBA PPC‐40
4	IBA FC65‐G	IBA Dose 1	IBA Water tank 1D
	IBA PPC‐40
5	IBA FC65‐G	IBA Dose 1	Sun Nuclear 1D Scanner
	IBA PPC‐40
6	IBA FC65‐G	IBA Dose 1	IBA Water tank 1D
	IBA PPC‐40
7	IBA FC65‐P	IBA Dose 1	IBA Water tank 1D
	IBA PPC‐40