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

  • Constructor Details

    • VirtualSourceAxisDistances

      public VirtualSourceAxisDistances(org.dcm4che3.data.Attributes attributes)
      Creates a new Virtual Source-Axis Distances object which wraps the provided attributes.
      Parameters:
      attributes - The Attributes object to be wrapped.
    • VirtualSourceAxisDistances

      public VirtualSourceAxisDistances()
      Creates a new Virtual Source-Axis Distances object which wraps a new and empty Attributes object.
  • Method Details

    • copy

      Returns a new Virtual Source-Axis Distances which wraps a copy of the Attributes wrapped in this Virtual Source-Axis Distances. (see Attributes(Attributes)
      Returns:
      a new Virtual Source-Axis Distances which wraps a copy of the Attributes wrapped in this Virtual Source-Axis Distances.
    • getValueRepresentation

      public org.dcm4che3.data.VR getValueRepresentation()
      Specified by:
      getValueRepresentation in interface DataElementWrapper
      Returns:
      The DICOM Value Representation (VR) of the wrapped DICOM sequence.
    • getTag

      public int getTag()
      Specified by:
      getTag in interface DataElementWrapper
      Returns:
      The DICOM Tag of the wrapped DICOM sequence.