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Linear Accelerator - DOAJ

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Last Updated: 22 September 2022

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Optical Fiber-Based Monitoring of X-ray Pulse Series from a Linear Accelerator

Even if the Cerenkov emission in the transport fiber was still considered hazy, a sensor with 11 cm of sensitive Ce-doped fiber spliced to rad-hard fluorine-doped optical fiber for the emitted light transport to the photomultiplier tube was also considered a good beam monitor result. Based on future architecture choices such as fiber type, length, or size, the beam monitoring capabilities of this class of optical fiber was demonstrated for such facilities, and the possibility of expanding the dose range is discussed.

Source link: https://doi.org/10.3390/radiation2010002


Comparison of Prospectively Generated Glioma Treatment Plans Clinically Delivered on Magnetic Resonance Imaging (MRI)-Linear Accelerator (MR-Linac) Versus Conventional Linac: Predicted and Measured Skin Dose

The aim of this study was to assess skin dose modelled from the treatment planning tools of a magnetic resonance imaging-linear accelerator and a conventional linear accelerator, then compare to in vivo measurements of delivered skin doses from each linear accelerator. Methods: 37 consecutive glioma patients under medical intervention were documented and approved prior to radiotherapy implementation using commercial treatment planning tools: a Monte Carlo-based magnetic resonance imaging-linear accelerator or a convolution-based accelerator. This is the first prospective dosimetric comparison of glioma patients medically treated on both magnetic resonance image-linear accelerator and conventional linear accelerator. Skin doses were significantly higher with magnetic resonance imaging-linear accelerators, according to our results, but they were more consistent with in vivo measurements of actual skin dose from delivered treatments.

Source link: https://doi.org/10.1177/15330338221124695


Quantitative analysis of diffusion weighted imaging in rectal cancer during radiotherapy using a magnetic resonance imaging integrated linear accelerator

Background and purpose: Magnetic resonance imaging integrated linear accelerator platforms enable the acquisition of diffusion weighted images during treatment, providing potential data about patient response. The DWI on these platforms is technically different from diagnostic magnetic resonance imaging scanners. On the MR-Linac, the aim of this study was to determine the possibility of getting DWI and determining apparent diffusion coefficient parameters longitudinally in rectal cancer patients. Conclusions: DWI analysis in rectal cancer patients on MR-Linac is conclusive. The initial findings laid the groundwork for further research into the use of DWI in rectal cancer treatment adaptation.

Source link: https://doi.org/10.1016/j.phro.2022.06.003


Real-Time Regulation of Beam-Based Feedback: Implementing an FPGA Solution for a Continuous Wave Linear Accelerator

Only the electric field accelerating the electron bunches was intentionally monitored in order to implicitly stabilize the accelerated electron beam. The control system of the electron linear accelerator for beams with high brilliance and low emission is expected to be upgraded by the BBF, and the issue of implementing a customized control algorithm is becoming extremely important. We recommend a fast-time viable implementation of a high-order H 2 regulator based on a field-programmable gate array in this work.

Source link: https://doi.org/10.3390/s22166236


The Anti-Tumor Effect of Boron Neutron Capture Therapy in Glioblastoma Subcutaneous Xenograft Model Using the Proton Linear Accelerator-Based BNCT System in Korea

Boron neutron capture therapy is a radiation therapy that selectively kills cancer cells and is being extensively researched and developed around the world. Boron neutron capture therapy is a radiation therapy that selectively destroys cancer cells and is specifically targeted at cancer cells. In addition, the boron concentration in the tumor, blood, and skin on the U-87 MG xenograft model was determined, and the tumor volume was measured for 4 weeks after BNCT. The proton linear accelerator-based BNCT system developed in Korea is expected to be a new option for radiation therapy for cancer treatment, according to reports.

Source link: https://doi.org/10.3390/life12081264

* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions

* Please keep in mind that all text is summarized by machine, we do not bear any responsibility, and you should always check original source before taking any actions