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- Select DAQ > Measurement Editor from the IMS panel menu (Figure 2).
- Interval: Number of centimeters the core will move between each image. This value is hardcoded in IMS software and cannot be changed in this window. This interval guarantees image overlap and maximizes system efficiency. Default interval is set at 12 cm.
- Width: Fixed length of the produced image. This value is dependent on the detector and hardware setup. Default length is 15 cm.
- Stack: Number of x-radiographs taken at each position. These images are stacked and averaged to produce the final raw image. 20 images is the standard. Stacking more images does not improve the image quality further. See the User Guide, 'Image Stacking' section for more information.
- Exposure Time: Duration of each exposure in milliseconds.
- kV: X-ray tube voltage. Maximum voltage for the source is 120 kV. Lowering the voltage while maintaining the number of x-rays penetrating the core (longer exposure or higher current) will increase image contrast.
- mA: X-ray tube current. Maximum current for the source is 1 mA. Increasing the current will increase contrast if voltage is kept constant.
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14. Every thirty minutes both raw and processed images are automatically copied to data1 data1 (\\CLEVELAND)(S:)\data1\7.3 Petrophysics_XRAY\mirror). Be extremely careful when deleting an image on the X-Ray computer, as any change will be automatically replicated on 'data1'.
ABORT button
- At any time during imaging a user can click the ABORT button to end the imaging process and ramp down the source. Once pressed, imaging will end and it will be necessary to start imaging the section from the beginning.
- A dialog window with different options will appear (Figure 9).
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