Investigation of photon and proton overlapping fields in PRESAGE? dosimeters

7th International Conference on 3D Radiation Dosimetry

Carroll, M.^1,2 ; Ibbott, G.^1 ; Grant, R.^1 ; Gillin, M.^1 ; Adamovics, J.^3

Department of Radiation Physics, University of Texas MD Anderson Cancer Center, 1515 Holcombe Blvd., Houston, TX 77030, United States^1

University of Texas at Houston, Graduate School of Biomedical Sciences, Houston, TX 77030, United States^2

Heuris Pharma, LLC, 412 Sunset Rd., Skillman, NJ 08558, United States^3

关键词: Beam direction;    Beam irradiation;    Clinical treatment plans;    Field treatments;    Measurements of;    Over-response;    Single fractions;    Treatment verification;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/444/1/012059/pdf
DOI  :  10.1088/1742-6596/444/1/012059

来源: IOP

【 摘 要 】

To evaluate the effects of overlapping dose volumes for varying field arrangements in PRESAGE®, several sequential beam irradiations were delivered each to formulations intended for, and irradiated with, proton beams as well as photon beams. The dosimeters were irradiated within timespans consistent of overlapping fields in clinical treatment plans. Dose profiles taken along the beam direction indicated slight over-responses in higher dose regions relative to similar irradiations given in a single fraction. These results will aid future measurements of overlapping field treatment plans delivered to PRESAGE® for treatment verification of proton and photon 3D dosimetry.