RaySafe Xi - Manual (Page 42)

tIps and trICKs
arranGeMent of MeasureMent
Make sure nothing is in the X-ray field when measuring with the raysafe Xi.
the fact that the dose is proportional to 1/d 2 (where d is the fdd – focus to detector distance) may be used
when positioning the sensor.
d
sensor posItIon
the solid state sensors in the raysafe Xi r/f and mammography detector are positioned approximately 7 mm
beneath the detector surface. the position is marked with a line on the aluminium housing. this position is
used as a calibration reference point for dose.
In the raysafe Xi transparent detector, the white rectangle marks the position of the solid state sensor. the
depth is marked by the longitudinal sides of the white rectangle, as can been seen in the picture.
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raysafe Xi user Manual – tips and tricks