MOOR INSTRUMENTS moorLDI2 RESEARCH USER MANUAL
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The DC gain should be reduced: in this example from 2 to the 0.
When moist tissue is being scanned, it is important to avoid scanning perpendicular to the tissue by
angling the scan head (about 15degrees) to avoid direct laser reflection.
6.3.4.8 Reading (RU)
Clicking
Reading
displays the Raw values of DC, Flux and Conc measurements at the beam
position. Note Raw values are the outputs of the 12 bit A/D range 0 to 4095 before scaling. The PU
units are the Flux etc values after scaling and calibration. It can be useful to know the RU values in
deciding on the gain settings.
6.3.4.9 Scan
This performs a low resolution image (16 lines) scan which will aid in deciding the gain settings. A
dark blue image indicates a higher gain setting should be selected to make better use of the moorLDI
dynamic range. Saturation (S) is shown as red in the DC image and white in Flux image.
A warning window appears if more than 5% of the image area is saturated.
6.3.4.10 Abort
Clicking the Abort ‘key’ or pressing A on the key board will stop the Scan at any time.
6.3.4.11 Save Configuration
Having spent time configuring the system and the scan window for a particular application it should
be saved if it is likely to be needed again. To do this click the ‘
Save Setup File
’ button.
Different configurations can be saved for different applications or user preferences.
Choose an appropriate filename and directory (folder) from the ‘Save As’ window which will be
displayed, and the configuration will be saved in a *.mcf file.
The configuration can be modified and re-saved using the ‘Save Setup File’ command.
To install a saved configuration use the ‘
Load Setup File’
button.
To make sure that any changes made during a scan session are applied for the next time the moorLDI
is used, tick the
Auto Save
box. This way, the configuration will be saved automatically when the
program exits and will be automatically loaded for the next scan to be done.
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