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. 2013 May 6;14(3):150–163. doi: 10.1120/jacmp.v14i3.4226

Table 3.

Comparison between FMC and perturbation model (PMODEL) for case #3. The maximum differences between PMODEL and PFMCWS for 192Ir and 125I are less than 1.2% and 4.9%, respectively. The MC uncertainties are at most 2.2%.

CASE #3 Ir‐192 I‐125
Calculation Points
PMODEL=P1×P2×P3×P4×P5×P6×P7
PFMCWS
PMODELP1×P2×P3×P4×P5×P6×P7
PFMCWS
(0, 0, 1)
0.803×1×1×1×1×1×1=0.803
0.803
0.640×0.999×1×1×1×1×1=0.639
0.639
(0, 1, 2)
0.999×1×1×1×0.997×1×0.999=0.995
0.997
0.995×1×0.999×0.998×0.988×1×1=0.980
0.980
(0, 1.25, 1.75)
1×1×1×0.999×0.925×1×1=0.924
0.923
0.998×1×0.999×0.988×0.872×1×1=0.859
0.854
(0, 1.25, 1.25)
1×1×1×0.918×1×1×1=0.918
0.918
0.998×1×0.999×0.874×0.998×1×1=0.870
0.867
(0,2,0.5)
1×0.986×1×1×1×1×1=0.986
0.985
1×0.997×1×1×0.999×1×1=0.996
0.999
(0, 3, 0)
1×0.876×1×1×0.999×0.935×1=0.818
0.827
1×0.859×1×0.999×0.999×0.917×0.999=0.785
0.834
(0, 4, 0)
1×0.863×1×1×0.999×0.923×1=0.796
0.808
1×0.878×0.998×0.999×1×0.905×1=0.792
0.817
(0, 4, 0.25)
1×0.863×1×1×1×0.930×1=0.803
0.815
1×0.865×0.998×1×1×0.903×0.999=0.779
0.790
(0, 4, 1)
1×0.989×0.981×1×1×1×0.987=0.958
0.960
1×0.930×0.927×0.998×1×0.999×0.964=0.829
0.829
(0, 4, 1.5)
1×0.993×0.862×0.999×1×1×0.952=0.814
0.825
1×0.980×0.866×1×1×1×0.924=0.784
0.808
(0, 4, 2.25)
1×1×0.856×1×1×0.999×1=0.855
0.854
0.998×0.999×0.863×0.998×1×0.999×1=0.858
0.850