Ic Wave Mode - On - Off; Dynamic Stop Trigger - Radcal ACCU-GOLD2 User Manual

Accu-Gold USER GUIDE
grounding the system has not improved the experience, connect a Multi-sensor or Dose Diode and
locate it somewhere in the radiation beam so that it can serve as a trigger source.
High – Select if Std causes false triggering.
Free - Disables the trigger. The Free mode provides a manual trigger with the Play/Pause button. A
measurement will begin after you select Free and the sensor(s) are initialized. The measurement will
continue until you select Disconnect. This can be useful to check for grounding issues since you can
record and document the noise levels.
HINT: Use Free for very low dose rate measurements with the 180CC or 1800CC ion chambers.
IC Wave Mode – ON – OFF
This function is only available when an ion chamber is connected and the system has been started and
is ready to measure. Selecting IC ON will give a warning about grounding and provides frequency
corrected IC waveforms. IC triggering with Wave mode set to Off will work with all settings (Low, Std &
High) because it suppresses noise. This of course makes the waveforms very distorted, but much lower
IC dose and dose rates can be measured.

Dynamic Stop Trigger

This setting becomes available when an Ion Chamber or a Dose Diode is connected and is the trigger
source. (Not with the Nugget) There are occasions when using an IC or DD, that the automatic dynamic
stop trigger ends an exposure inappropriately. This may happen with long slowly changing or undulating
waveforms such as CT scans or fluoro exposures. One method to avoid this is to use a second sensor
as a trigger (e.g. Dose Diode) or to use Free Run as a trigger. NOTE: The default value for Dynamic
Stop trigger is On. Important: Only change the Dynamic Stop Trigger to Off if you experience a faulty
ending triggers with ion chambers or dose diodes.
Ion Chamber Exposure with incorrect stop trigger:
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