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Characterization of LiF TLD-100 in carbon ion beams for remote audits.
Med Phys
December 2024
Division of Radiation Oncology, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA.
Background: A passive dosimeter framework for the measurement of dose in carbon ion beams has yet to be characterized or implemented for regular use.
Purpose: This work determined the dose calculation correction factors for absorbed dose in thermoluminescent dosimeters (TLDs) in a therapeutic carbon ion beam. TLD could be a useful tool for remote audits, particularly in the context of clinical trials as new protocols are developed for carbon ion radiotherapy.
Thermoluminescence of NaF and NaF:Tm phosphors exposed to beta particle irradiation.
Appl Radiat Isot
December 2024
Departamento de Investigación en Polímeros y Materiales, Universidad de Sonora, Apartado Postal 130, Hermosillo, Sonora, 83000, Mexico.
This work reports the synthesis and beta particle excited thermoluminescence (TL) characteristics of NaF and NaF:Tm phosphors synthesized via wet precipitation. The samples were subjected to thermal annealing at 750 °C for 5, 10, and 24 h in an air atmosphere. A sensitization effect is observed in repeated irradiation-TL readout cycles.
View Article and Find Full Text PDFComparison of the Effective Radiation Dose in the Region of the Facial Skull Between Multidetector CT, Dental Conebeam CT and Intraoperative 3D C-Arms.
Craniomaxillofac Trauma Reconstr
December 2024
Department of Cranio-Maxillo-Facial-Surgery, University Hospital Ulm, Ulm, Germany.
Study Design: Experimental single-centre study of X-ray absorption using a phantom skull.
Objective: This experimental study aimed to compare the radiation doses of different 3D imaging devices used in maxillofacial surgery, including one Multidetector CT (MDCT), two Conebeam CT (CBCT) and four intraoperative 3D C-arms.
Methods: Thermoluminescent dosimeters (TLD) were used to determine the absorbed radiation in an Alderson-Rando phantom skull.
Novel non-thermoluminescent CaSO:Dy dosimeters.
Appl Radiat Isot
November 2024
Departamento de Investigación en Física, Universidad de Sonora, Apartado Postal 5-088, Hermosillo, Sonora 83190, Mexico. Electronic address:
The non-thermoluminescence afterglow-based dosimetry performance of self-agglomerating pellet-shaped CaSO:Dy phosphors synthesized through a low-cost, environmentally friendly method is first reported. Thermoluminescence (TL) and afterglow (AG) were analyzed in samples exposed to beta particle irradiation in the dose range from 0.06 to 8.
View Article and Find Full Text PDFAssessment of clinical feasibility:offline adaptive radiotherapy for lung cancer utilizing kV iCBCT and UNet++ based deep learning model.
J Appl Clin Med Phys
November 2024
Department of Radiotherapy, Shuguang Hospital Affiliated to Shanghai University of Chinese Traditional Medicine, Shanghai, China.
Background: Lung cancer poses a significant global health challenge. Adaptive radiotherapy (ART) addresses uncertainties due to lung tumor dynamics. We aimed to investigate a comprehensively and systematically validated offline ART regimen with high clinical feasibility for lung cancer.
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