Owner manual

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RaySafe i2 System User Manual – Technical data
TECHNICAL DATA
DOSIMETER RADIOLOGY
ChARACTERISTIC mEASURE
Operational Quantity* H
p
(10)
Reproducibility 10% or 1 µSv, whatever is greatest
Dose Rate Range 40 µSv/h – 300 mSv/h
Energy dependence X-/γ-rays ± 20% within N40 – N100
± 30% within N100 – N120
Angular dependence ± 5% within ± 5°
± 30% within ± 50°
+200%/-100% within ± 90°
Temperature dependence ± 5% within 20-26°C
± 25% within 15-35°C
Battery voltage dependence ± 2% from fully charged until low battery shutdown
Response time Less than 1 s above 100 µSv/h, less than 5 s otherwise
Position on body** On torso outside lead apron
*) H
p
(10): Personal dose equivalent at a depth of 10 mm according to ISO 4037.
**) Position on body: The H
p
(10) measurement is only valid for a position on the torso outside any lead apron or
other protection. (To estimate eective dose to a user, one must use other means to estimate things like the
environmental radiation situation and the eectiveness of protection.)
DOSIMETER MEMORY
The dosimeter has two dose data memories:
• The accumulated dose memory, where the dosimeter stores accumulated dose values every hour for the
entire lifetime of the dosimeter.