Related Experiment Video
Updated: Jun 9, 2026
Irradiator Commissioning and Dosimetry for Assessment of LQ α and β Parameters, Radiation Dosing Schema, and in vivo Dose Deposition
Published on: March 11, 2021
[Dosimetric verification of the intensity modulated radiation therapy]
1Radiotherapy Dept., The PLA 309th Hospital, Beijing, 100091. zyh309@yahoo.com.cn
Objective:
To research the method of dosimetric verification of the intensity modulated radiation therapy (IMRT).
Methods:
The IMRT treatment plans were designed by Eclipse TPS and were implemented in Varian ClinacIX LA with 6MV X-ray. The absolute point doses were measured using a PTW 0.6 cc ion chamber with UNIDOS E dosimeter and the planes dose distributions were measured using PTW 2D-Array ion chamber in the phantom.
Results:
The error between the measured dose and calculated dose in the interesting points was less than 3%. The points passed ratio was more than 90% in gamma analysis method (3 mm 13%) about the plane dose distribution verification.
Conclusion:
The method of dosimetric verification of IMRT is reliable and efficient in the implementation.
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