Compatibility With Radiographic Generators - KaVo Dental GXS-700 Manuel D'utilisateur

Shown above is the X-ray sensor DQE as a function of spatial frequency, for a range
of X-ray doses from 50 to 600 uGy. The curves indicate that there is no significant
change in DQE performance going from 50 uGy to 600 uGy. This implies that the
sensor operates quantum-limited over that dose range, indicating that all photons
are being used effectively and that noise does not degrade performance at low
doses. The curve also indicates that device can resolve detail down to 20 lp/mm
(over all doses). This means that the X-ray sensor exhibits no reduction in resolution
over the input dose range from 50 to 600 uGy.

Compatibility with Radiographic Generators

GXS-700 is generally compatible with any dental X-ray unit and generator capable
of supplying the required range of exposure times and doses.
Follow the instructions of the X-ray generator to set the desired dose range.
The radiation of X-ray tubes is controlled by the settings of:
Some controls allow for the modification of all of the above, some have fixed settings
for current and voltage.
Distance of X-ray Source to Sensor
There is a correlation between the distance of the cone to the sensor and the dose
received by the GXS-700 sensor. The radiation that reaches the sensor decreases
with the square of the distance. If you double this distance, you receive only 1/4 of
the radiation.
English
Exposure time (msec) or pulses
•
Voltage (kV or kVp)
•
Current (mA)
•
Specifications and Standards
7-3