7698 - Standard : Due to low energy of Co-57 gammas, the count rate on either side of the sourc...
Type
Standard
Due to low energy of Co-57 gammas, the count rate on either side of the source may vary. Always use the label side for consistency in data acquisition.
7699 - Note : Verify distance between source and detector is minimized to warrant accurate ...
Type
Note
Verify distance between source and detector is minimized to warrant accurate efficiency measurements.
Step 00
7700 - Place label side of Co-57 gamma source against yellow dot at center of detect...
Place label side of Co-57 gamma source against yellow dot at center of detector
7701 - The source must be held firmly against the detector with a low-density tool s...
The source must be held firmly against the detector with a low-density tool such as wooden dowel or pencil.