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OPERATOR’S MANUAL • Owandy-RX DC • 02/2020 • NXDCEN160A
Operator’s manual – Owandy-RX DC
Dose in air is:
SOURCE-SKIN DISTANCE
31 cm = 12”
20 cm = 8”
60 kV – 4 mA = 2,2 mGy/s ± 30%
70 kV – 4 mA = 3 mGy/s ± 30%
60 kV – 8 mA = 4,5 mGy/s ± 30%
70 kV – 8 mA = 5,5 mGy/s ± 30%
60 kV – 4 mA = 4,5 mGy/s ± 30%
70 kV – 4 mA = 6 mGy/s ± 30%
60 kV – 8 mA = 9 mGy/s ± 30%
60 kV – 4 mA = 12 mGy/s ± 30%
STEP 3 – Checking the exposure time (s)
The exposure time is measured with a “non invasive” instrument.
SET TECHNICAL FACTORS
Vn ± 10%
NOMINAL VOLTAGE
3%
MAXIMUM VOLTAGE DROP
60 / 70 kV
NOMINAL HIGH VOLTAGE
4 / 8 mA
NOMINAL CURRENT
3,2 s
SET EXPOSURE TIME
The exposure time measured is 3,2s ±5% or ±20 ms, whichever is larger.
