VATECH EzRay Air Portable VEX-P300 Bedienungsanleitung Seite 82

10. Appendix
Phosphor Plate
t (s)
0.30
0.42
0.60
0.65
t (s)
0.28
0.40
0.58
0.63
10.4.2 Leakage Dose
Scope
IEC 60601-2-65 203.12.4
Requirements
In the LOADING STATE, the AIR KERMA due to LEAKAGE RADIATION from X-RAY
SOURCE ASSEMBLIES, 1 m from the FOCAL SPOT, average over an area of 100
cm 2 of which no principal linear dimension exceeds 20 cm when operated at the
NOMINAL X-RAY TUBE VOLTAGE under condition of LOADING corresponding to the
reference LOADING conditions, shall not exceed 0.25 mGy in one hour.
65 kVp, 2.5 mA, 1.0 s (Max. Exposure Condition)
Instrument
X / Gamma
Survey Meter
76
Dose Area Product (DAP) Table
(60 kVp, 2.5 mA, SSD 200 mm)
FOV: Ø 6 cm
14.7
20.1
29.2
31.6
Dose Area Product (DAP) Table
(65 kVp, 2.5 mA, SSD 200 mm)
FOV: Ø 6 cm
15.3
23.1
32.9
36.4
Leakage Dose
At Focal Spot to Distance 1 m
1 : 60 Duty Cycle
Manufacturer
Radcal Co.
FOV : 3 x 4 cm
Dose (mGy.cm 2 )
6.2
8.5
12.4
13.4
FOV : 3 x 4 cm
Dose (mGy.cm 2 )
6.5
9.8
14.0
15.4
Test Equipment
Model
9015/10X5-180
EzRay Air Portable (Model: VEX-P300) User Manual
FOV : 2 x 3 cm
3.1
4.3
6.2
6.7
FOV : 2 x 3 cm
3.2
4.9
7.0
7.7
Permissive Range
< 0.25 mGy/h
S/N
91-1470/19069