DICOM PS3.3 2021d - Information Object Definitions

C.36.2.2.6 External Beam Control Point General Macro (Current)
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##### C.36.2.2.6 External Beam Control Point General Macro

This Macro specifies the RT Control Point Attributes used to model external beam radiation.

Table C.36.2.2.6-1. External Beam Control Point General Macro Attributes

Attribute Name | Tag | Type | Attribute Description
--- | --- | --- | ---
Include Table C.36.2.2.5-1 “RT Control Point General Macro Attributes”.
Delivery Rate | (300A,063D) | 2C | The value of the intended nominal rate of delivery of the specified Cumulative Meterset (300A,063C). The units are defined in the Delivery Rate Unit Sequence (300A,063E). Required if the conditions in Section C.36.2.2.5.1.1 are satisfied. See Section C.36.2.2.5.1.
Delivery Rate Unit Sequence | (300A,063E) | 1C | The unit of the delivery rate value. Required if Delivery Rate (300A,063D) is present and has a value. See Section C.36.2.2.5.1. Only a single Item shall be included in this Sequence.
>Include Table 8.8-1 “Code Sequence Macro Attributes”. | CID is specified at invocation.
Beam Area Limit Sequence | (300A,0689) | 1C | Area within which the treatment beam must be contained, for example when using MLC tracking for a moving target. Only a single Item shall be included in this Sequence. Required if beam shall be limited. See Section C.36.2.2.5.1.
>Include Table 10.38-1 “Outline Definition Macro Attributes”. | The Outline is defined on the Beam Modifier Definition Plane.

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DICOM PS3.3 2021d - Information Object Definitions