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D. Glossary
These brief explanations are included to de-
fine terms used in this manual.
Dose
The total amount of radiation received. Also
called Accumulated Dose.
Dose Rate
The average rate (in time) of radiation; e.g.,
Roentgen per hour. Also called Rate.
Rate
The amount of radiation measured by the
UltraRadiac™ every 2 seconds, then extrapo-
lated to and displayed as units per hour.
Roentgen (R)
Unit of measure of radiation exposure; moni-
tors the amount of radiation received.
Sievert (Sv)
Unit of measure of absorbed radiation; moni-
tors the biological danger of radiation.
Stay Time
The Stay Time is how much time remains, at
the current Dose Rate, before the High Dose
Alarm is triggered.
