Table 1 Overview on signal to noise ratios and contrast between roots and soil measured for the initial test series.
From: Capturing 3D Water Flow in Rooted Soil by Ultra-fast Neutron Tomography
texp [s/projection] | SNR flatfield | SNR projection | Contrast root-soil (radiograph), % | Contrast root-soil (tomographic slice), % |
|---|---|---|---|---|
0.2 | 28.0 | 7.0 | 18 | 40 |
0.1 | 20.8 | 5.6 | 17 | 38 |
0.05 | 17.9 | 4.9 | 16 | 41 |
0.05 | 17.9 | 4.8 | 14 | 43 |