Class VirtualSourceAxisDistances

All Implemented Interfaces:
AttributesWrapper, DataElementWrapper, BytesDataElementWrapper, DoubleDataElementMultiWrapper, FloatDataElementMultiWrapper, FloatingPointSingleMultiWrapper

public class VirtualSourceAxisDistances extends AbstractDataElementWrapper implements FloatingPointSingleMultiWrapper
Name: Virtual Source-Axis Distances
Keyword: VirtualSourceAxisDistances
Tag: (300A,030A)
Value Representation: FL
Value Multiplicity: 2
  • Described in the contexts: as follows:
    Attribute Name: Virtual Source-Axis Distances
    Type: 1
    Attribute Description:

    Distance (in mm) from virtual source position to gantry rotation axis or nominal isocenter position (fixed beam-lines) of the equipment to be used for beam delivery. Specified by a numeric pair - the VSAD in the IEC Gantry X direction followed by the VSAD in the IEC Gantry Y direction.

    The VSAD is commonly used for designing apertures in contrast to the effective source-axis-distance (ESAD) that is commonly used with the inverse square law for calculating the dose decrease with distance. See DICOM Standard Part 3 - Section C.8.8.25.4.


  • Field Details

    • VALUE_REPRESENTATION

      public static final org.dcm4che3.data.VR VALUE_REPRESENTATION
    • TAG

      public static final int TAG
      See Also:
  • Constructor Details

    • VirtualSourceAxisDistances

      public VirtualSourceAxisDistances(org.dcm4che3.data.Attributes attributes)
    • VirtualSourceAxisDistances

      public VirtualSourceAxisDistances()
  • Method Details