Table 2 Geometrical density (in %) of \(\underline {\boldsymbol {K}}\) and Aλ with Nj=9×9,NE=4
From: Algorithms for joint activity–attenuation estimation from positron emission tomography scatter
N d | 2 | 4 | 8 | 16 | 32 | 64 | 128 |
|---|---|---|---|---|---|---|---|
\(\underline {\boldsymbol {K}}\) | 4.30 | 4.30 | 3.80 | 3.16 | 2.78 | 2.15 | 1.42 |
A λ | 33.6 | 34.5 | 26.8 | 22.1 | 18.9 | 14.3 | 9.19 |