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February 5, 2004
4-12
2. Select the desired number of Goal Images to average (1 to 4) before taking the
first exposure.
3. Follow the displayed instructions for Generator configuration.
Note that if you just finished the ESE determination, the suggested mAs
appears both in the text field and in the mAs field. This is intended to be only
a reminder; you must manually set the proper mAS on the Generator.
4. Click the Enable Capture button, then make the indicated exposure.
Part of the text scrolling in the initial command window will show "Writing
image to file GOAL1.img" and then "Done writing file."
5. If averaging more than one image, wait for the DRAPI to be ready again, then
enable capture and expose again. Do this for each image to be included in the
averaging.
When the final image has been written to a file, the images will be averaged
together (if more than one) and the goal table file will be generated. The file
name for the goal table image is based on the target/filter selection (Mo/Mo =
goaltab1; Mo/Rh = goaltab2; W/Rh = goaltab3).
The text display changes to show the number of averaged images.
The text scrolling in the initial command window will show the following text:
NOTE: The text messages may be interspersed with DRAPI image frame messages. Also, the sample
messages shown below represent a selected AGD of 1.5 mGy.
Binning the goal image to make goaltab file goaltab1 for Mo/Mo target/filter.
Reading image file... done.
Generating binned image
done.
Writing AEC image (448x512) file... done.
Writing mem image (28x32) file... done.
Image binning complete.
Opening goaltab1 for goaltab input
Opening brick:/tmp/goaltab1 for goaltab output
Reading goaltab1 for goaltab input
Read 896 goaltab entries.
Closing goaltab1
Writing brick:/tmp/goaltab1 for goaltab output
Wrote 3584 bytes via rfs.
Writing the value "15" to brick:/tmp/goaltab1 for AGD output...
Wrote 4 bytes via rfs.
Closing brick:/tmp/goaltab1
Installing goaltab1 to long-term Brick configuration...
(/usr/local/bin/xrayconfig goaltab1 save /tmp/goaltab1)
"save" OK.
Installing goaltab1 to effective and short-term Brick configuration...
(/usr/local/bin/xrayconfig goaltab1 load /tmp/goaltab1)
"load" OK.
Goal Table goaltab1 successfully loaded on Brick.
***************************************
AEC Calibration procedure is complete.
***************************************
At this point, the system is ready to use in AEC mode.
There may be a problem loading the expanded goaltab file (3584 pixels plus 4-byte
AGD value) into effective and short-term storage on the PXCM.
FFDM-S Service Manual
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Table of Contents
Troubleshooting
