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3
OMNICxi Software Operation
Acquire and Analyze Data
Thermo Scientific
DXRxi User Guide
131
6.
Acquire a preview chemical image
and use it to optimize the Image pixel size and
Aperture settings.
7. Use one of the following methods to select one or more regions of the sample for analysis.
• Click
Manual Regions
and use the mouse to draw a box around several regions of
interest in the mosaic.
• Click
Auto Regions
and adjust any settings for the auto region selection wizard. The
auto selected regions appear in the mosaic pane.
• Click
Region Queue
and use the tools to define or edit regions. Added or edited
regions appear in the mosaic pane.
Each region has associated acquisition settings. To specify a setting such as Number of
scans for a particular region, adjust the setting and then draw the region.
To delete a region, right-click the region and choose
Delete > Selected Region
.
8. When you are ready to collect the image data, click
COLLECT Regions
.
The regions are collected in the order in which they were created (and listed in the region
queue). The chemical images appear on top of the mosaic. Wait until all requested scans
are completed for all selected regions.
9. To save the acquired data, click
Save Current Data
, select a file format and click
Save
.
10. To collect data from another sample, click
New Sample
.
After collecting the chemical image, apply another profile to the image to visualize other
properties of the sample data.
Profile Settings
Profile Settings appear in the
. The profile settings define the mathematical algorithm applied to each spectrum in
the selected region (or the preview region) to create the chemical image. The algorithm
converts each spectrum into a number that is represented by a color in the chemical image.
The available profile types are described below. After you select a profile, the software
immediately starts calculating it. Each time you adjust a profile setting, the calculation
restarts. For each profile type, the
defines the scale or range and
corresponding colors used to create the chemical image.
Tip
Use the transparency bar to change the transparency of the chemical image data
so you can view features in the mosaic.
Note
The collected data also appear in the
, which can be used to
perform other types of analyses with the data or to search sample components against a
spectral library.
Summary of Contents for DXR xi
Page 12: ...1 Introducing the DXRxi Raman Imaging System Trademarks 6 DXRxi User Guide Thermo Scientific...
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Page 64: ...Safety Information 58 DXRxi User Guide Thermo Scientific Microscope Safety Labels or...
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Page 67: ...Safety Information Thermo Scientific DXRxi User Guide 61...
Page 68: ...Safety Information 62 DXRxi User Guide Thermo Scientific...
Page 166: ...3 OMNICxi Software Operation Acquire and Analyze Data 160 DXRxi User Guide Thermo Scientific...