Table 1 Summary of radiation sources and filters used for each imaging method
MSI Technique | Filter(s) in front of radiation sources | Filter(s) in front of camera | Range investigated |
|---|---|---|---|
Visible-reflected imaging (VIS) | 2 × Youngenu NY660 Xenon flashlight, each mounted with soft box (without filter) | Baader UV/IR Cut | 420–680 nm |
Ultraviolet-induced visible Luminescence imaging (UVL) | + 2 × Hoya U-360 | Baader GUV/IR Cut | 420–680 nm |
Infrared imaging (IR) | 2 × Youngenu NY660 Xenon flashlight, each mounted with soft box (without filter) | Schott RG830 | 830–1100 nm |
Ultraviolet-reflected imaging (UVR) | + 2 × Hoya U-360 | Baader U-Venus | 350–380 nm |