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 the camera | Range investigated |
|---|---|---|---|
Visible-reflected imaging (VIS) | 2 × Youngenu NY660 Xenon flashlight, mounted with soft box (without filter) | Baader UV/IR Cut | 420–680 nm |
Ultraviolet-induced Visible Luminescence imaging (UVL) | + 2 × Hoya U-360 | Baader UV/IR Cut | 420–680 nm |
Ultraviolet-induced Blue Luminescence imaging (UVBL) | + 2 × Hoya U-360 | MIDOPT BP470 + Baader UV/IR Cut | 425–495 nm |
Ultraviolet-induced Red Luminescence imaging (UVRL) | + 2 × Hoya U-360 | MIDOPT BP635 + Baader UV/IR Cut | 615–645 nm |
Ultraviolet-Reflected imaging (UVR) | + 2 × Hoya U-360 | Baader U-Venus | 350–380 nm |
Infrared imaging (IR) | 2 × Youngenu NY660 Xenon flashlight, each mounted with soft box (without filter) | Schott RG830 | 830–1100 nm |