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RT Ion BeamsCModule - Plan
(300A,03A2) Ion Beam Sequence1Sequence
(0008,0070) Manufacturer3Long String
(0008,0080) Institution Name3Long String
(0008,0081) Institution Address3Short Text
(0008,1040) Institutional Department Name3Long String
(0008,1041) Institutional Department Type Code Sequence3Sequence
(0008,1090) Manufacturer's Model Name3Long String
(0018,1000) Device Serial Number3Long String
(0018,1204) Date of Manufacture3Date
(0018,1205) Date of Installation3Date
(3008,00A1) Enhanced RT Beam Limiting Device Sequence1CSequence
(3008,00A3) Enhanced RT Beam Limiting Device Definition Flag3Code String
(300A,00B2) Treatment Machine Name2Short String
(300A,00B3) Primary Dosimeter Unit1Code String
(300A,00C0) Beam Number1Integer String
(300A,00C2) Beam Name1Long String
(300A,00C3) Beam Description3Short Text
(300A,00C4) Beam Type1Code String
(300A,00C6) Radiation Type1Code String
(300A,00CE) Treatment Delivery Type1Code String
(300A,00D0) Number of Wedges1Integer String
(300A,00D7) Total Wedge Tray Water-Equivalent Thickness3Single
(300A,00E0) Number of Compensators1Integer String
(300A,00ED) Number of Boli1Integer String
(300A,00F0) Number of Blocks1Integer String
(300A,00F3) Total Block Tray Water-Equivalent Thickness3Single
(300A,0107) Applicator Sequence3Sequence
(300A,010E) Final Cumulative Meterset Weight1CDecimal String
(300A,0110) Number of Control Points1Integer String
(300A,0150) Fixation Eye3Code String
(300A,02E3) Total Compensator Tray Water-Equivalent Thickness3Single
(300A,02EA) Ion Range Compensator Sequence1CSequence
(300A,0302) Radiation Mass Number1CInteger String
(300A,0304) Radiation Atomic Number1CInteger String
(300A,0306) Radiation Charge State1CSigned Short
(300A,0308) Scan Mode1Code String
(300A,0309) Modulated Scan Mode Type1CCode String
(300A,030A) Virtual Source-Axis Distances1Single
(300A,030C) Snout Sequence3Sequence
(300A,0312) Number of Range Shifters1Integer String
(300A,0314) Range Shifter Sequence1CSequence
(300A,0330) Number of Lateral Spreading Devices1Integer String
(300A,0332) Lateral Spreading Device Sequence1CSequence
(300A,0340) Number of Range Modulators1Integer String
(300A,0342) Range Modulator Sequence1CSequence
(300A,0350) Patient Support Type1Code String
(300A,0352) Patient Support ID3Short String
(300A,0354) Patient Support Accessory Code3Long String
(300A,0356) Fixation Light Azimuthal Angle3Single
(300A,0358) Fixation Light Polar Angle3Single
(300A,03A4) Ion Beam Limiting Device Sequence3Sequence
(300A,03A6) Ion Block Sequence1CSequence
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(300A,0420) General Accessory Sequence3Sequence
(300A,0505) Depth Dose Parameters Sequence3Sequence
(300C,0042) Referenced Reference Image Sequence3Sequence
(300C,006A) Referenced Patient Setup Number3Integer String
(300C,0080) Referenced Dose Sequence3Sequence
(300C,00A0) Referenced Tolerance Table Number3Integer String
(300C,00B0) Referenced Bolus Sequence1CSequence
(3010,0038) Entity Long Label3Long String
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Data synced with official DICOM standard on 18 April 2024. The DICOM Standard is under continuous maintenance, and the current official version is available at http://www.dicomstandard.org/current/. DICOM Parts 3, 4, and 6, © NEMA. Please note that the most recent PDF version of the standard is the official reference, and should checked when making technical decisions.

Final Cumulative Meterset Weight Attribute

Tag(300A,010E)
TypeConditionally Required (1C)
KeywordFinalCumulativeMetersetWeight
Value Multiplicity1
Value RepresentationDecimal String (DS)

Value of Cumulative Meterset Weight (300A,0134) for final Control Point in Ion Control Point Sequence (300A,03A8). Required if Cumulative Meterset Weight is non-null in Control Points specified within Ion Control Point Sequence. See Section C.8.8.14.1.

Section C.8.8.14.1

C.8.8.14.1 Meterset Calculations

The Meterset at a given Control Point is equal to Beam Meterset (300A,0086) specified in the Referenced Beam Sequence (300C,0004) of the RT Fraction Scheme Module, multiplied by the Cumulative Meterset Weight (300A,0134) for the Control Point, divided by the Final Cumulative Meterset Weight (300A,010E). The Meterset is specified in units defined by Primary Dosimeter Unit (300A,00B3). If the calculation for Meterset results in a Meterset value that is not an exact multiple of the primary Meterset resolution, then the result shall be rounded to the nearest allowed Meterset value (i.e., less than a half resolution unit shall be rounded down to the nearest resolution unit, and equal or greater than half a resolution unit shall be rounded up to the nearest resolution unit).

Note also that if Final Cumulative Meterset Weight (300A,010E) is equal to 100, then Cumulative Meterset Weight (300A,0134) becomes equivalent to the percentage of Beam Meterset (300A,0086) delivered at each control point. If Final Cumulative Meterset Weight (300A,010E) is equal to Beam Meterset (300A,0086), then the Cumulative Meterset Weight (300A,0134) at each control point becomes equal to the cumulative Meterset delivered at that control point.