Chapter 2: Safety and Regulatory
5495975-1EN Rev.9
2-31
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Collimator
describes the collimator controls and the radiation field.
Table 2-15
Collimator descriptions
Symbol
Description
Control for indicating radiation field by using light.
Identifies controls for opening the collimator blades, or indicates partially or fully
open state.
Identifies controls for closing the collimator blades, or indicates closed state.
Indicates the collimator blades are closed. The controlled blades are shown in
thicker lines.
Indicates the collimator blades are open. The controlled blades are shown in
thicker lines.
Indicates the use of laser radiation.