Please note: This is version 1.2 of DRAC and is currently under development.

DRAC — Data Tables

A list of the different data sets available for use in DRAC:

Radionuclide conversion factors: View, Download CSV
Grain size attenuation factors for alpha dose rates: View, Download CSV
Grain size attenuation factors for beta dose rates: View, Download CSV
Etch depth attenuation factors: View, Download CSV
Water content attenuation factors: View, Download CSV
F, J and H parameters used for cosmic dose rate calculation: View, Download CSV
Gamma dose scaling: View, Download CSV

7) Gamma dose scaling factors

From Aitken, 1985.

Depth (m)	U	Th	K	weighted average
0.000	0.5	0.5	0.5	0.5
0.005	0.56	0.557	0.555	0.557
0.010	0.602	0.597	0.594	0.598
0.015	0.637	0.631	0.626	0.631
0.020	0.666	0.659	0.654	0.66
0.025	0.692	0.685	0.678	0.686
0.030	0.716	0.708	0.7	0.706
0.035	0.736	0.728	0.72	0.729
0.040	0.755	0.747	0.738	0.748
0.045	0.772	0.763	0.755	0.764
0.050	0.788	0.779	0.77	0.78
0.055	0.802	0.793	0.784	0.794
0.060	0.815	0.806	0.796	0.806
0.065	0.826	0.817	0.808	0.818
0.070	0.837	0.828	0.819	0.829
0.075	0.847	0.838	0.83	0.839
0.080	0.857	0.848	0.839	0.849
0.085	0.865	0.856	0.848	0.857
0.090	0.873	0.865	0.856	0.866
0.095	0.881	0.872	0.864	0.873
0.100	0.888	0.879	0.872	0.88
0.105	0.895	0.886	0.879	0.887
0.110	0.901	0.892	0.885	0.893
0.115	0.907	0.898	0.891	0.899
0.120	0.912	0.904	0.897	0.905
0.125	0.917	0.909	0.903	0.91
0.130	0.922	0.914	0.908	0.915
0.135	0.926	0.918	0.913	0.92
0.140	0.93	0.922	0.917	0.924
0.145	0.934	0.926	0.922	0.928
0.150	0.938	0.93	0.926	0.932
0.155	0.942	0.934	0.93	0.936
0.160	0.945	0.938	0.934	0.939
0.165	0.948	0.941	0.937	0.942
0.170	0.951	0.944	0.94	0.945
0.175	0.954	0.947	0.943	0.948
0.180	0.956	0.95	0.947	0.951
0.185	0.959	0.953	0.95	0.954
0.190	0.961	0.955	0.952	0.956
0.195	0.964	0.957	0.955	0.959
0.200	0.966	0.959	0.957	0.961
0.205	0.968	0.961	0.959	0.963
0.210	0.97	0.963	0.962	0.965
0.215	0.972	0.965	0.964	0.966
0.220	0.973	0.967	0.966	0.968
0.225	0.974	0.969	0.968	0.97
0.230	0.976	0.97	0.969	0.972
0.235	0.977	0.971	0.971	0.974
0.240	0.978	0.973	0.972	0.975
0.245	0.979	0.975	0.974	0.976
0.250	0.981	0.976	0.975	0.977
0.255	0.982	0.977	0.977	0.978
0.260	0.983	0.978	0.978	0.98
0.265	0.984	0.979	0.979	0.981
0.270	0.985	0.98	0.98	0.982
0.275	0.986	0.981	0.981	0.983
0.280	0.987	0.982	0.982	0.984
0.285	0.987	0.983	0.983	0.985
0.290	0.988	0.984	0.984	0.986
0.295	0.989	0.985	0.985	0.986
0.300	0.989	0.986	0.986	0.987
0.305	0.99	0.987	0.986	0.988
0.310	0.991	0.987	0.987	0.988
0.315	0.991	0.987	0.988	0.988
0.320	0.992	0.988	0.989	0.989
0.325	0.993	0.989	0.99	0.99
0.330	0.993	0.99	0.99	0.991
0.335	0.993	0.991	0.99	0.992
0.340	0.993	0.991	0.991	0.992
0.345	0.994	0.992	0.992	0.992
0.350	0.994	0.992	0.992	0.992
0.355	0.994	0.992	0.992	0.993
0.360	0.995	0.992	0.993	0.993
0.365	0.995	0.993	0.993	0.994
0.370	0.995	0.993	0.994	0.994
0.375	0.996	0.993	0.994	0.994
0.380	0.996	0.994	0.994	0.994
0.385	0.996	0.994	0.995	0.995
0.390	0.996	0.994	0.995	0.995
0.395	0.997	0.995	0.995	0.995
0.400	0.997	0.995	0.995	0.996
0.405	0.997	0.995	0.996	0.996
0.410	0.997	0.995	0.996	0.996

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Full references for each of the datasets can be accessed via the References page.

We invite authors who calculate new and/or updated datasets for dose rate calculation to submit their datasets for use in DRAC. If you are interested, please contact us.