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Table 1
The coefficient of determination, R2 of the linear fitting curves of H*(10) rate with 1/d2.
| Lead attenuator thickness | R2 using M-32002 PTW chamber | R2 using NE 2530 chamber |
|---|---|---|
| No attenuators | 0.9999 | 0.9999 |
| 2.1 cm | 0.9999 | 0.9999 |
| 3 cm | 0.9997 | 0.9999 |
| 4.1 cm | 0.9996 | 0.9997 |
| 5.1 cm | 0.9995 | 0.9993 |
| 6.2 cm | 0.9992 | 0.9986 |
| 7.1 cm | 0.9988 | 0.9973 |
| 9.2 cm | 0.9987 | 0.9888 |
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