Table 1.

MCNPX model resolution characteristics, scan lengths, and D _w for GSF/ICRP phantom models and five patient models used in this investigation

Name	Age	Gender	In‐plane resolution	Image slices	Lateral width (mm)	Anterior–posterior width (mm)	Slice thickness (mm)	Scan length (cm)	D w (cm)
Peds2a	7 days	Male	128 × 128	30	3.5	3.5	4.8	14.3	12.6
Peds1a	7 weeks	Male	128 × 128	24	3.5	3.5	4.8	11.6	10.6
Baby	8 weeks	Female	67 × 69	142	3.4	1.7	4.0	10.2	11.1
Peds3a	21 months	Female	128 × 128	36	3.9	3.9	4.8	16.7	15.6
Peds5a	23 months	Male	128 × 128	30	3.5	3.5	4.8	14.8	17.1
Peds4a	2 yr	Male	128 × 128	30	3.5	3.5	4.8	14.5	15.7
Child	7 yr	Female	64 × 64	144	6.2	6.2	8.0	14.8	17.2
Helga	28 yr	Female	64 × 64	114	7.8	7.8	10.0	14.5	18.2
Irene	32 yr	Female	66 × 66	348	7.5	3.8	5.0	15.8	17.1
Golem	38 yr	Male	64 × 64	220	8.3	8.3	8.0	15.6	18.3
Visible human	38 yr	Male	64 × 64	250	8.6	4.3	5.0	15.3	19.6
Regina	38 yr	Female	75 × 69	348	7.1	3.6	4.8	17.1	19.9
Donna	40 yr	Female	64 × 64	179	7.5	7.5	10.0	16.5	18.7
Rex	43 yr	Male	64 × 64	222	8.6	4.3	8.0	16.0	20.2
Frank	48 yr	Male	64 × 64	193	5.9	5.9	5.0	21.8	19.2

^aIndicates a voxelized patient model created from image data obtained from clinically indicated scans.