|
Code
|
Display
|
Definition
|
|
130333
|
Single Leaves |
RT beam limiting device multi-element unpaired leaves |
|
130344
|
Photon Fixed Aperture |
A type of device (or cone) for photon treatments that is attached to the radiation head of an RT treatment device into which beam modifiers are installed. |
|
130332
|
Variable Circular Collimator |
A circular, aperture size adjustable beam limiting device for an RT treatment device. |
|
130343
|
Electron Fixed Aperture |
A type of device (or cone) for electron treatments that attaches to the applicator carriage of an RT treatment device for the purpose of holding an aperture and a bolus close to the patient's skin. Several beam applicators may be available to reduce the weight of apertures lifted by therapists, decrease the aperture/bolus-to-skin distance, and reduce leakage radiation. |
|
130123
|
Aperture Block |
A device, typically made of a low temperature alloy, such as Lipowitz"s metal, that provides an opening in a beam block with constant attenuation across an area of the beam to prevent or reduce radiation dose delivery to normal tissues. |
|
130331
|
Leaf Pairs |
RT beam limiting device multi-element leaf pairs |
|
130330
|
Jaw Pair |
RT beam limiting device jaw pair |
|
130345
|
Intraoperative Fixed Aperture |
A type of device which is used to delimit the radiation of an RT treatment device in case of an intraoperative radiotherapeutic treatment. |