Midmark Preva - Typical X-Ray Scatter Dose Rates

Preva Installation/Service Manual, 00-02-1577, Revision E01
13
Typical X-ray Scatter Dose Rates
For room planning purposes, these illustrations show X-ray scatter dose rates that are
typical of the Preva system. This data was developed using a common, commercially-
available human head phantom in the normal patient position to produce the required
X-ray scatter. A Rad-Cal model 160cc ion-chamber (µRem) meter was used to
integrate the doses. Measurements were taken at distances of 1 and 2 meters from the
X-ray target, 50 in. (127 cm) from the horizontal plane of the floor.
0.003 mR
0.001 mR
0.002 mR
0.002 mR
2 m
X-ray source
0
.
013
mR
0
.
002 mR
0.002 mR
0.009 mR
1 m
X-ray source
Exposures: molar protocol; 70 kVp, 6 mA, 1 sec.; measurements at 1 meter (39 in.) from the X-ray target.
Exposures: molar protocol; 70 kVp, 6 mA, 1 sec.; measurements at 2 meters (79 in.) from the X-ray target.