2018
DOI: 10.1016/j.nima.2018.01.030
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Estimation of the optical errors on the luminescence imaging of water for proton beam

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Cited by 11 publications
(15 citation statements)
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“…Measurement uncertainties caused by corrections of the CCD sensor efficiency distribution and the lens image distortion should be considered in the prediction estimation 30–32 . Additionally, obtaining a LD scale calibration from the CCD for measuring absolute phantom size would add another uncertainty to the prediction 32,33 . We are currently preparing a fully closed housing phantom, covering a CCD and a scintillator in the fixed position, for future experiments.…”
Section: Discussionmentioning
confidence: 99%
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“…Measurement uncertainties caused by corrections of the CCD sensor efficiency distribution and the lens image distortion should be considered in the prediction estimation 30–32 . Additionally, obtaining a LD scale calibration from the CCD for measuring absolute phantom size would add another uncertainty to the prediction 32,33 . We are currently preparing a fully closed housing phantom, covering a CCD and a scintillator in the fixed position, for future experiments.…”
Section: Discussionmentioning
confidence: 99%
“…[30][31][32] Additionally, obtaining a LD scale calibration from the CCD for measuring absolute phantom size would add another uncertainty to the prediction. 32,33 We are currently preparing a fully closed housing phantom, covering a CCD and a scintillator in the fixed position, for future experiments. This phantom will help to minimize phantom setup uncertainty and maintain a consistent background light.…”
Section: Energymentioning
confidence: 99%
“…14 One possible reason for this smaller Bragg peak height is the parallax error, since the Bragg peak was not imaged at center and thus the peak height was smaller. 16 Another possible reason is the quenching effect of the luminescence of water, although this was not observed for protons after correction. 17…”
Section: Discussionmentioning
confidence: 99%
“…The signal generation in XLCT is a form of radioluminescence where the ionizing radiation (in this case, x-ray photons) causes the emission of optical photons from the embedded contrast agents, and it is generally assumed that all the optical photons generated are emitted only from the contrast agents. However, numerous studies have reported other sources of optical photons from the radioluminescence of air, water, and biological tissue [20][21][22][23][24][25][26][27][28][29][30][31][32][33][34][35][36] at energies below the Cerenkov radiation threshold which will provide background noise and limit the molecular sensitivity of XLCT imaging. Yamamoto et al conducted various luminescence imaging experiments with different sources of radiation to image both water and air.…”
Section: Introductionmentioning
confidence: 99%
“…Yamamoto et al conducted various luminescence imaging experiments with different sources of radiation to image both water and air. Using proton-beam irradiation, they found that water was able to luminesce even during traditional proton-therapy, and determined that this information could be useful for dose and range estimation [20][21][22][23]30]. With carbon-ion irradiation, they performed similar luminescence imaging (also with energy below the Cerenkov-threshold) and determined, by measuring and deriving the light spectra, that this water luminescence was likely caused by an electromagnetic pulse produced from the dipole displacement inside water molecules as the derived spectra was found to be proportional to λ −2.0 [24,25].…”
Section: Introductionmentioning
confidence: 99%