Multi-MeV Flash Radiography in Shock Physics Experiments: Specific Assemblages of Monolithic Scintillating Crystals for Use in CCD-Based Imagers

Figure 12

Photon transfer curve (open circles) of the CCD; noise (𝜎) produced in the CCD as a function of signal level (𝑆) (measurement performed with a light source); (dashed line) numerical fit of the experimental curve (𝜎²=𝜎²⁰+𝑘⋅𝑆, with 𝜎₀=5.1LSB and 𝑘=0.81); noise produced in the imager as a function of signal level with 20-mm (solid grey squares) and 30-mm (open triangles) thick BGO scintillators, respectively (measurement performed using X-rays). Note that all measurements overlay nicely, indicating that the dominating contributor to the imager noise is the noise produced in the CCD.