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2.4 Radiation Protection
Because x–ray equipment produces radiation, special precautions may be needed or special site
modifications may be required. The General Electric Company does not make recommendations
regarding radiation protection. It is the purchasers' responsibility to consult a radiation physicist
for advise on radiation protection in x–ray rooms.
2.5 Audible noise
•
Less than 50 dB (A) at 1 meter for an Innova LC Positioner.
•
Less than 50 dB (A) at 1 meter for an Innova LP4 Positioner.
•
Limited to 50 dB (A) at 1 meter for Omega V table.
•
Limited to 55 dB (A) at 1 meter for C2 LC/LP Cabinet.
•
Limited to 60 dB (A) at 1 meter for the COOLIX 4000.
•
Limited to 65 dB (A) at 1 meter for C1 Frontal Cabinet.
•
Limited to 65 dB (A) at 1 meter for C1 Lateral Cabinet.
•
Limited to 52 dB (A) (background of 35 dB (A)) at 1 meter for Digital Detector Conditioner
Thermo–Con.
•
Less than 50 dB (A) at 1 meter for a DL LCD monitor.
•
Less than 50 dB (A) at 1 meter for the Fluoro UPS.
The values contained
Innova 3131-IQ system installed on a clinical site.
Table 3-11: Gantry Noise measurements
Measurements
Ambient (System off)
System ON (no motion, no X-
Ray)
Motions
First scopie (anode accelera‐
tion)
Fluoro
NOTE:
Noise generated by system cabinets all together is 70dB. If cabinets are installed too
close to the exam room (e.g. behind sliding doors) appropriate measures have to be
implemented during the pre-installation to effectively reduce noise in the exam room.
2.6 Windows and curtains
When the examination room has a window with an aperture outside of the controlled light area
(day light, other...) a curtain has to maintain the light intensity under a limit fixed to 150 lux.
Chapter 3 Physical Requirements of room
Innova 2121-IQ/3131-IQ Biplane Cardiovascular Imaging System Pre-Installation Manual
inTable 3-11
are the results of the measurement performed on the first
Gantry (FRT, LAT, both)
FRT (Detector lift)
LAT (C-Arc)
FRT and LAT
FRT
LAT
FRT
LAT
FRT and LAT
Direction 5177951-4-1EN, Revision 1
Gantry positions
Peak (db)
1
N/A
2
N/A
1
86.2
2
86.3
2
85.1
1
80.2
2
80.3
1
79.7
2
79.5
2
79.8
Mean (db)
55.7
58.2
66.3
63.7
66.9
60.3
59.6
59.2
59.1
60.2
65
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