Collimating The Radiation Field Using The Diagram - Siemens MOBILETT XP Instructions For Use Manual

MOBILETT
SPR8-230.621.01.03.02

Collimating the radiation field using the diagram

A diagram is helpful when using a filter.
Never adjust the collimator to a field greater than needed for the investigated
area.
(1)
(1) Cassette size
(2) Scale index
◆ Follow the horizontal line from the y-axis, that belongs to the size of the used
cassette, until it crosses the leaning line indicating the chosen Source Image
Distance (SID).
◆ Follow the vertical line and read off the value on the x-axle indicating the scale
index.
◆ Set the adjustment knobs for the collimator according to the scale index value.
– This adjustment gives a field size which corresponds to the size of the
cassette. In those cases when the object to expose is smaller than the size of
the cassette reduce the field size.
Operation
(2)
41
of 106