Table 1 The transfer function \(T(\xi ,\eta )\) of the imaged samples.
From: A hybrid simulation method towards the gamma ray phase contrast imaging for metallic material
\(T(\xi ,\eta )\) | Case A | Case B | Case C |
|---|---|---|---|
\(A(\xi ,\eta )\) | \(\frac{1}{1+\exp (\xi /a)}\) | 1 | 1 |
\(\Phi (\xi ,\eta )\) | 0 | \(-\frac{3\times 10^6}{1+\exp (\xi /a)}\) | \(-\frac{a\times 10^9}{1+\exp (\xi /a)}\) |
