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The CLRP TG-43 Parameter Database
R. E. P. Taylor and D. W. O. Rogers

Radial dose function data for the Implant STM1251 source
Radius / cm gL(r)
L=0.380 cm
gp(r)Unc.
%
0.05 0.987 0.345 0.03
0.06 0.952 0.385 0.02
0.07 0.940 0.427 0.02
0.08 0.940 0.470 0.02
0.09 0.944 0.511 0.02
0.10 0.949 0.549 0.02
0.15 0.980 0.707 0.03
0.20 1.003 0.811 0.04
0.25 1.017 0.880 0.04
0.30 1.025 0.925 0.05
0.40 1.035 0.977 0.06
0.50 1.037 1.002 0.08
0.60 1.033 1.013 0.10
0.70 1.027 1.015 0.11
0.75 1.024 1.015 0.12
0.80 1.020 1.013 0.13
0.90 1.011 1.009 0.15
1.00 1.003 1.003 0.00
1.50 0.931 0.938 0.10
2.00 0.856 0.863 0.14
2.50 0.770 0.778 0.19
3.00 0.690 0.697 0.24
3.50 0.612 0.619 0.29
4.00 0.540 0.546 0.36
4.50 0.475 0.480 0.43
5.00 0.418 0.423 0.51
5.50 0.363 0.368 0.30
6.00 0.317 0.321 0.35
6.50 0.275 0.278 0.41
7.00 0.239 0.241 0.47
7.50 0.207 0.210 0.54
8.00 0.179 0.182 0.62
8.50 0.153 0.154 0.71
9.00 0.131 0.133 0.81
9.50 0.114 0.115 0.92
10.00 0.0983 0.0995 1.04

Fitting coefficients for gL(r) = (a0r-2 + a1r-1 +a2 + a3r +a4r2 + a5r3) e-a6r
Fit rangeCoefficients
rmin (cm)rmax (cm)a0 / cm2a1 / cma2a3 / cm-1a4 / cm-2a5 / cm-3a6 / cm-1
0.0510.009.0798E-04-2.4072E-021.0947E+005.1514E-011.1439E-023.4677E-034.7100E-01


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D.W.O. Rogers home page
August 29 2008.