Table 2 Attenuation coefficients of different off-axis distances
r/cm | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 |
|---|---|---|---|---|---|---|---|---|---|---|---|
\(a(r)\) | 0.0575 | 0.0596 | 0.0598 | 0.0600 | 0.0601 | 0.00606 | 0.0614 | 0.0617 | 0.0628 | 0.0635 | 0.0640 |
\(b(r)\) | 0.003642 | 0.005063 | 0.005039 | 0.004948 | 0.005014 | 0.005135 | 0.00536 | 0.005288 | 0.005645 | 0.005791 | 0.005898 |