Table 1. Exposure factors used for water and polymethyl methacrylate (PMMA) phantom measurements.

Device	Rotation	Phantom positioning	kVp	mAs	FOV size (cm)a
Ion chamber measurements in water phantom, xz plane
SCANORA® 3D	360	Central	85	30	10 × 7.5
TLD measurements in water phantom, xz plane and yz plane
SCANORA 3D	360	Central	85	30	10 × 7.5
SCANORA 3D	360	Off axis	85	36	<>6 × 6
3D Accuitomo XYZ	360	Off axis	80	70	4 × 3
TLD measurements in water and PMMA phantoms, xy plane
GALILEOS™	200	Off axis	85	28	15 × 15
SCANORA 3D	360	Off axis	85	30	10 × 7.5
ILUMA® Elite	360	Central	120	76	21 × 14
ILUMA Elite	360	Off axis	120	76	21 × 14
NewTom® VG	360	Central	110	9.6	23 × 23
NewTom VG	360	Off axis	110	6.1	23 × 23
3D Accuitomo™ 170	360	Central	90	87.5	4 × 4, 6 × 6, 8 × 8, 14 × 5, 14 × 10
3D Accuitomo 170	360	Off axis	90	87.5	4 × 4
3D Accuitomo 170	180	Central	90	45	10 × 10
i-CAT® N.G.	360	Central	120	18.5	8 × 8, 16 × 6
i-CAT N.G.	360	Off axis	120	18.5	8 × 8, 16 × 6
i-CAT N.G.	180	Central	120	9.3	8 × 8
ProMax™ 3D	200	Central	84	17.1	8 × 5,
ProMax 3D	200	Off axis	84	17.1	8 × 5

FOV, field of view; TLD, thermoluminescent dosemeter.

SCANORA 3D, Soredex, Tuusula, Finland; 3D Accuitomo XYZ, J Morita Mfg. Corp., Kyoto, Japan; 3D Accuitomo 170, J Morita Mfg. Corp., Kyoto, Japan; GALILEOS, Sirona Dental Systems, Bensheim, Germany; ILUMA Elite, IMTEC, St Paul, MN; NewTom VG, Quantitative Radiology, Verona, Italy; i-CAT N.G., Imaging Sciences International, Hatfield, PA; ProMax 3D, Planmeca Oy, Helsinki, Finland.

^aDiameter × height.