Table 1.

Comparison between RadShield approach and geometry‐based approach with two sources with two degrees of freedom.

RadShield Approach		Geometry‐based Approach		Comparison
Relative Location (m)	Air‐Kerma Rate $(mGy\hspace{0.17em}w{k}^{-1})$	Relative Location (m)	Air‐Kerma Rate $(mGy\hspace{0.17em}w{k}^{-1})$	Location Location % Error	Air‐Kerma Abs Error (m)	Rate % Error
$1.00\mathrm{E}+00$	$8.64\mathrm{E}-01$	$1.00\mathrm{E}+00$	$8.64\mathrm{E}-01$	$8.00\mathrm{E}-06$	$8.00\mathrm{E}-08$	$-1.42\mathrm{E}-06$
$1.58\mathrm{E}+00$	$7.07\mathrm{E}-01$	$1.58\mathrm{E}+00$	$7.07\mathrm{E}-01$	$1.66\mathrm{E}-01$	$2.62\mathrm{E}-03$	$-4.76\mathrm{E}-05$
$7.00\mathrm{E}-01$	$1.09\mathrm{E}+00$	$7.01\mathrm{E}-01$	$1.09\mathrm{E}+00$	$-1.47\mathrm{E}-01$	$1.03\mathrm{E}-03$	$-7.96\mathrm{E}-06$
$1.22\mathrm{E}+00$	$9.55\mathrm{E}-01$	$1.22\mathrm{E}+00$	$9.55\mathrm{E}-01$	$3.24\mathrm{E}-01$	$3.95\mathrm{E}-03$	$-8.31\mathrm{E}-05$
$1.50\mathrm{E}+00$	$7.77\mathrm{E}-01$	$1.50\mathrm{E}+00$	$7.77\mathrm{E}-01$	$3.56\mathrm{E}-06$	$5.33\mathrm{E}-08$	$-1.28\mathrm{E}-06$
$2.52\mathrm{E}+00$	$6.66\mathrm{E}-01$	$2.52\mathrm{E}+00$	$6.66\mathrm{E}-01$	$3.98\mathrm{E}-04$	$1.00\mathrm{E}-05$	$-1.27\mathrm{E}-06$
$7.40\mathrm{E}-01$	$9.91\mathrm{E}-01$	$7.46\mathrm{E}-01$	$9.91\mathrm{E}-01$	$-8.59\mathrm{E}-01$	$6.36\mathrm{E}-03$	$-1.76\mathrm{E}-04$
$1.90\mathrm{E}+00$	$8.81\mathrm{E}-01$	$1.90\mathrm{E}+00$	$8.81\mathrm{E}-01$	$2.25\mathrm{E}-01$	$4.27\mathrm{E}-03$	$-5.95\mathrm{E}-05$