ANNEXES
A1. TECHNICAL SPECIFICATIONS
X-ray SOURCE ASSEMBLY
Half Value Layer (HVL) at 70 kV 2,2 mm Al
Total ltration at 70 kV 2,4 mm Al
Tube inherent 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 ±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 0,4 mAs 4 mA 0,1 s
Intensity of radiation in the air > 30 µGy/h at 1 m from focal spot
Leakage radiation (measured @ 70 kV, 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 specied energy input
in one hour
70kV – 8mA
PLEASE NOTE
The measurements criteria are based on the requirements stated by the applicable standards
listed in the annex A.3 of this manual.
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