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OPERATOR’S MANUAL • Owandy-RX DC • 02/2020 • NXDCEN160A
Operator’s manual – Owandy-RX DC
ANNEX 1
A1. TECHNICAL SPECIFICATIONS
X-ray SOURCE ASSEMBLY
Half Value Layer (HVL) at 70 kV
2,2 mm Al
Total fi ltration at 70 kV
2,4 mm Al
Tube inherent fi ltration at 70 kV
> 1 mm Al
X-ray tube tension accuracy
±10%
X-ray tube current accuracy
±20%
Radiation linearity
±10%
X-ray emission time accuracy
±20 ms 0,020 s ≤ t ≤ 0,320 s
±5% 0,400 s ≤ t ≤ 3,2 s
Reproducibility
0,05
Generator
At constant potential
X-ray tube nominal current
4 mA / 8 mA
X-ray tube nominal voltage
60 / 70 kV
Exposure times
0,020 s ÷ 3,2 s (23 steps)
Reference current-time product
0,8 mAs 8 mA 0,1 s
0,4 mAs 4 mA 0,1 s
Intensity of radiation in the air
> 30 μGy/h at 1 m from focal spot
Leakage radiation (measured @ 70kV, 8 mA, 3,2 s)
< 0,25 mGy/h at 1 m from focal spot
Operating cycle
1:32
Loading factors related to the maximum specifi ed energy input in
one hour
70kV – 8mA – 3,2 s
Tube Rating Charts
Tube anode rating charts according to
TOSHIBA DG-073BDC offi cial datasheet and
maximum rated values 70 kV, 8 mA, 3,2 s. kV,
mA and s settings are used fi xed, the relevant
combinations are within the maximum allowed
by the X-ray tube specifi cations.
PLEASE NOTE
The measurements criteria are based on the requirements stated by the applicable standards listed in the annex A.3
of this manual.
