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Estimated relative uncertainty (k = 2) of the total collision kerma related to the sum spectrum of primary and all generations of scattered photons. These estimates are obtained by multiplying the deviation of the entries in Table 1 from unity with the respective entries in Table 2.
| spectrum | water | gold |
|---|---|---|
| 50 kVp | 0.23 | 0.23 |
| 60 kVp | 0.24 | 0.23 |
| 100 kVp | 0.06 | 0.13 |
