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Weapons of Mass Destruction (WMD)

Appendix E

Nomograms and Tables

This appendix contains nomograms and tables for use in radiological calculations, a hairline for local reproduction, and a map scale for use in total dose calculations (crossing problems).

Tables beginning Table E-1 are set to tabular format. They are presented with their corresponding nomograms. To determine the radioactive cloud and stem parameters, find the appropriate yield in the left-hand column (Table E-1) and read the data across the table.

Stabilized cloud-top and cloud-bottom angle yield estimation is presented in Table E-2. Enter the table with the stabilized cloud-top or bottom angle in the left-hand column. Read across the top of the table with the flash-to-bang time or distance to ground zero. Where the two columns intersect is the estimated yield, some mathematical estimation may be required.

To determine the downwind distance of Zone I (zone of immediate concern) (Table E-4), find the appropriate yield in the left-hand column, and the effective wind speed across the top. Where the two columns intersect is the downwind distance of Zone I.

For fallout decay (Table E-5), enter with the R1 value on the left side, and t in hours across the top. Where the two columns intersect is the Rt value. To determine the R1 value, find the Rt value in the t column and read across to the left to determine R1. Some mathematical estimation of the data may be required.

To determine total dose (Table E-24), enter the table for the appropriate decay rate with the Te value in the left-hand column and the Ts value across the top. Where the two columns intersect is the value for the index scale. Turn to Table E-43 for the index table. Enter the index value across the top of the table and the R1 value down the left hand side. Where the two columns intersect is the total dose. If the index and R1 values are not present in the table either multiply the index value by R1 value for a product in total dose, or mathematically estimate the data in the table.



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