Stranica 90 [90]
8) Image of uniform reflective board under experimental conditions for flat fielding the UV¬
reflected image.
A workflow has been developed to ensure thatthese reguirements are collected according to
the optimised and standardised acquisition protocols. The instructions below describe the
workflow for the capture of UV-induced visible luminescence images.
Workflow for the capture of UV-induced visible luminescence (UVL) images
Equipment requirements:
e Camera
e UV radiation sources
e UV safety glasses
e UV-blocking filter (e.g. Schott KV418 +IDAS-UIBAR)
e Macbeth colour chart (not required but remains in the shot from previous image for
continuity/image registration)
e Spectralon diffuse reflectance grey scale or any number of Spectralon diffuse
reflectance standards as available.
Set-up
1) Position the UV radiation sources and the camera as shown in Figure 2-31 and
according to the recommendations in section b.
Object
Visible-blocking
Uv g > UV filter (DUG 11X)
Blue stray XN = =) "A
light | OA 3 2 S
DUG11 + o
2 e
: hazi
UV Lights 8 2
(Wood lights)
[ 1 UV-blocking filter
(e.g. Schott KV418 + IDAS-UIBAR)
kanal
Version No. 1.0 82 Date : 14/10/2013