Delivery verification using 3D dose reconstruction based on fluorescence measurement in a carbon beam scanning irradiation system
- Medical Physics Research Group, Research Center for Charged Particle Therapy, National Institute of Radiological Sciences, 4-9-1 Anagawa, Inage-ku, Chiba 263-8555 (Japan)
The authors have developed a method to reconstruct the 3D dose distribution in a particle beam scanning irradiation system. In this scheme, 3D dose distribution is reconstructed by using the measured images of fluence distribution, which are taken for each iso-energy slice (i.e., the unit of the depth scanning). A fluorescent screen with a CCD camera is used to measure the fluence distribution. This system was installed at the HIMAC experimental port and tested by using carbon ion beams. Since a maximum difference between the reconstructed dose and the ionization chamber measurement was around 5% in the target volume, this system can be useful for quick verification of 3D dose distribution.
- OSTI ID:
- 21120741
- Journal Information:
- Medical Physics, Journal Name: Medical Physics Journal Issue: 6 Vol. 35; ISSN 0094-2405; ISSN MPHYA6
- Country of Publication:
- United States
- Language:
- English
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