Research Article
Dose Distributions of an 192Ir Brachytherapy Source in Different Media
Table 3
Anisotropy function,
(
,
), calculated by MCNPX code for the
Ir microSelectron source centered in a spherical tissue phantom with
cm.
| Polar angle (degrees) | Water | Lung | Bone | Radial distance from active source center | Radial distance from active source center | Radial distance from active source center | 0.5 cm | 1.0 cm | 2.0 cm | 3.0 cm | 5.0 cm | 10.0 cm | 0.5 cm | 1.0 cm | 2.0 cm | 3.0 cm | 5.0 cm | 10.0 cm | 0.5 cm | 1.0 cm | 2.0 cm | 3.0 cm | 5.0 cm | 10.0 cm |
| 1 | 0.629 | 0.577 | 0.579 | 0.601 | 0.648 | 0.730 | 0.597 | 0.536 | 0.514 | 0.512 | 0.517 | 0.553 | 0.635 | 0.612 | 0.646 | 0.687 | 0.736 | 0.809 | 2 | 0.631 | 0.579 | 0.583 | 0.607 | 0.655 | 0.733 | 0.600 | 0.539 | 0.519 | 0.523 | 0.534 | 0.564 | 0.637 | 0.614 | 0.648 | 0.694 | 0.745 | 0.809 | 3 | 0.635 | 0.589 | 0.591 | 0.616 | 0.657 | 0.737 | 0.603 | 0.549 | 0.527 | 0.529 | 0.540 | 0.569 | 0.640 | 0.623 | 0.656 | 0.697 | 0.745 | 0.815 | 5 | 0.647 | 0.598 | 0.611 | 0.637 | 0.671 | 0.750 | 0.617 | 0.558 | 0.549 | 0.551 | 0.562 | 0.590 | 0.653 | 0.630 | 0.674 | 0.717 | 0.767 | 0.822 | 7 | 0.666 | 0.628 | 0.638 | 0.663 | 0.706 | 0.776 | 0.638 | 0.593 | 0.583 | 0.586 | 0.595 | 0.627 | 0.671 | 0.658 | 0.694 | 0.738 | 0.781 | 0.831 | 10 | 0.722 | 0.688 | 0.698 | 0.711 | 0.737 | 0.801 | 0.699 | 0.660 | 0.650 | 0.650 | 0.658 | 0.684 | 0.722 | 0.713 | 0.738 | 0.769 | 0.801 | 0.851 | 12 | 0.750 | 0.726 | 0.729 | 0.744 | 0.766 | 0.814 | 0.730 | 0.703 | 0.691 | 0.690 | 0.691 | 0.714 | 0.749 | 0.746 | 0.766 | 0.791 | 0.821 | 0.868 | 15 | 0.793 | 0.771 | 0.778 | 0.786 | 0.806 | 0.850 | 0.775 | 0.753 | 0.746 | 0.744 | 0.746 | 0.773 | 0.790 | 0.786 | 0.807 | 0.823 | 0.844 | 0.882 | 20 | 0.846 | 0.835 | 0.838 | 0.845 | 0.861 | 0.890 | 0.833 | 0.823 | 0.818 | 0.818 | 0.814 | 0.837 | 0.841 | 0.841 | 0.854 | 0.870 | 0.884 | 0.909 | 25 | 0.882 | 0.875 | 0.873 | 0.877 | 0.896 | 0.915 | 0.871 | 0.868 | 0.856 | 0.860 | 0.860 | 0.868 | 0.875 | 0.880 | 0.882 | 0.899 | 0.906 | 0.922 | 30 | 0.912 | 0.901 | 0.907 | 0.904 | 0.909 | 0.927 | 0.903 | 0.896 | 0.899 | 0.892 | 0.888 | 0.906 | 0.905 | 0.903 | 0.913 | 0.915 | 0.918 | 0.943 | 35 | 0.932 | 0.933 | 0.927 | 0.925 | 0.932 | 0.945 | 0.925 | 0.929 | 0.919 | 0.919 | 0.915 | 0.925 | 0.926 | 0.932 | 0.929 | 0.935 | 0.935 | 0.949 | 45 | 0.961 | 0.961 | 0.965 | 0.965 | 0.970 | 0.974 | 0.955 | 0.958 | 0.962 | 0.961 | 0.955 | 0.960 | 0.955 | 0.958 | 0.962 | 0.968 | 0.962 | 0.977 | 50 | 0.971 | 0.968 | 0.972 | 0.971 | 0.974 | 0.983 | 0.968 | 0.969 | 0.968 | 0.968 | 0.961 | 0.974 | 0.967 | 0.967 | 0.974 | 0.973 | 0.969 | 0.984 | 60 | 0.987 | 0.988 | 0.983 | 0.988 | 0.984 | 0.993 | 0.985 | 0.988 | 0.981 | 0.987 | 0.981 | 0.995 | 0.985 | 0.984 | 0.982 | 0.983 | 0.983 | 0.986 | 75 | 0.996 | 1.003 | 0.994 | 0.994 | 0.995 | 0.999 | 0.996 | 1.004 | 0.994 | 0.987 | 0.993 | 0.998 | 0.996 | 1.003 | 0.995 | 0.992 | 0.992 | 0.992 | 90 | 1.000 | 1.000 | 1.000 | 1.000 | 1.000 | 1.000 | 1.000 | 1.000 | 1.000 | 1.000 | 1.000 | 1.000 | 1.000 | 1.000 | 1.000 | 1.000 | 1.000 | 1.000 | 105 | 0.997 | 1.000 | 0.997 | 0.993 | 0.995 | 0.998 | 0.997 | 1.001 | 0.995 | 0.995 | 0.998 | 1.001 | 0.997 | 0.998 | 0.993 | 0.993 | 0.992 | 0.996 | 120 | 0.985 | 0.987 | 0.983 | 0.985 | 0.992 | 0.993 | 0.983 | 0.987 | 0.979 | 0.991 | 0.986 | 0.984 | 0.984 | 0.985 | 0.984 | 0.986 | 0.979 | 0.987 | 130 | 0.970 | 0.978 | 0.975 | 0.969 | 0.970 | 0.982 | 0.967 | 0.976 | 0.973 | 0.970 | 0.969 | 0.964 | 0.966 | 0.975 | 0.973 | 0.979 | 0.973 | 0.970 | 135 | 0.961 | 0.961 | 0.959 | 0.963 | 0.966 | 0.973 | 0.956 | 0.961 | 0.955 | 0.957 | 0.954 | 0.959 | 0.956 | 0.961 | 0.960 | 0.964 | 0.966 | 0.967 | 145 | 0.931 | 0.932 | 0.936 | 0.933 | 0.942 | 0.948 | 0.924 | 0.930 | 0.928 | 0.926 | 0.922 | 0.936 | 0.925 | 0.931 | 0.938 | 0.944 | 0.940 | 0.950 | 150 | 0.913 | 0.908 | 0.911 | 0.910 | 0.922 | 0.939 | 0.905 | 0.901 | 0.901 | 0.899 | 0.898 | 0.909 | 0.907 | 0.909 | 0.918 | 0.921 | 0.927 | 0.943 | 155 | 0.887 | 0.884 | 0.887 | 0.888 | 0.891 | 0.911 | 0.876 | 0.876 | 0.874 | 0.875 | 0.870 | 0.881 | 0.881 | 0.887 | 0.898 | 0.909 | 0.905 | 0.933 | 160 | 0.853 | 0.853 | 0.854 | 0.856 | 0.877 | 0.893 | 0.840 | 0.842 | 0.834 | 0.830 | 0.832 | 0.852 | 0.847 | 0.858 | 0.868 | 0.877 | 0.890 | 0.911 | 165 | 0.813 | 0.803 | 0.805 | 0.814 | 0.839 | 0.873 | 0.798 | 0.788 | 0.780 | 0.782 | 0.783 | 0.803 | 0.809 | 0.813 | 0.828 | 0.851 | 0.864 | 0.900 | 168 | 0.784 | 0.767 | 0.775 | 0.786 | 0.805 | 0.849 | 0.767 | 0.748 | 0.745 | 0.748 | 0.750 | 0.767 | 0.781 | 0.780 | 0.801 | 0.823 | 0.845 | 0.880 | 170 | 0.763 | 0.743 | 0.746 | 0.757 | 0.780 | 0.825 | 0.745 | 0.723 | 0.710 | 0.714 | 0.721 | 0.741 | 0.762 | 0.758 | 0.776 | 0.804 | 0.832 | 0.871 | 173 | 0.730 | 0.707 | 0.719 | 0.739 | 0.763 | 0.812 | 0.711 | 0.684 | 0.680 | 0.685 | 0.685 | 0.708 | 0.730 | 0.727 | 0.756 | 0.787 | 0.818 | 0.869 | 175 | 0.713 | 0.686 | 0.694 | 0.702 | 0.733 | 0.797 | 0.693 | 0.662 | 0.651 | 0.647 | 0.658 | 0.678 | 0.714 | 0.706 | 0.733 | 0.760 | 0.801 | 0.854 | 177 | 0.701 | 0.663 | 0.668 | 0.685 | 0.716 | 0.779 | 0.679 | 0.637 | 0.622 | 0.621 | 0.632 | 0.659 | 0.700 | 0.688 | 0.712 | 0.743 | 0.784 | 0.844 | 178 | 0.698 | 0.656 | 0.663 | 0.681 | 0.715 | 0.776 | 0.676 | 0.630 | 0.618 | 0.615 | 0.622 | 0.649 | 0.698 | 0.681 | 0.711 | 0.743 | 0.778 | 0.837 | 179 | 0.695 | 0.647 | 0.648 | 0.667 | 0.705 | 0.780 | 0.673 | 0.622 | 0.599 | 0.598 | 0.610 | 0.635 | 0.695 | 0.673 | 0.697 | 0.733 | 0.779 | 0.839 | 180 | 0.692 | 0.649 | 0.646 | 0.658 | 0.703 | 0.777 | 0.671 | 0.622 | 0.595 | 0.592 | 0.596 | 0.623 | 0.693 | 0.674 | 0.699 | 0.730 | 0.774 | 0.837 |
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