DICOM PS3.3 2020c - Information Object Definitions

C.36.16 Tomotherapeutic Delivery Device Module

The Tomotherapeutic Delivery Device Module contains tomotherapy-specific information pertaining to the physical device. These parameters are used to specify or record the treatment, including geometrical parameters of the collimation system.

Table C.36.16-1. Tomotherapeutic Delivery Device Module Attributes

Attribute Name




Radiation Source-Axis Distance



Distance in mm from the nominal Radiation Source location to the gantry rotation axis.

Include Table C. “Radiation Generation Mode Macro Attributes”.

Radiation Type Code Sequence (300A,067F) DCID 9525 “Radiation Therapy Particle”.

Energy Unit Code Sequence (300A,0684) DCID 9521 “Radiotherapy Treatment Energy Unit”.

Radiation Fluence Modifier Code Sequence (300A,0683) DCID 9549 “Radiation Generation Mode Types”.

Include Table C. “RT Beam Limiting Devices Definition Macro Attributes”.

Device Type Code Sequence (3010,002E) within RT Accessory Device Identification Macro DCID 9541 “Beam Limiting Device Types”.

DICOM PS3.3 2020c - Information Object Definitions