main webpage W Topic Petrology Magnetic Resonance in Medicine • Vol 90 • No 2 Electromagnetic and <scp>RF</scp> pulse design simulation based optimization of an eight‐channel loop array for 11.7T brain imaging 2023 Purpose Optimization of transmit array performance is crucial in ultra‐high‐field MRI scanners such as 11.7T because of the increased RF losses and RF nonuniformity. This work presents a new workflow to investigate and minimize RF coil losses, and to choose t… Article Open Petrology Open Article Page

Petrology

Branch of geology that studies the formation, composition, distribution and structure of rocks Petrology (from Ancient Greek __ πέτρος (_pétros ) 'rock' and __ -λογία ( -logía )_ 'study of') is the branch of geology that studies rocks, their mineralogy, composition, texture, structure and the conditions under which they form. Petrology has three subdivisions: igneous, metamorphic, and sedimentary petrology. Igneous and metamorphic petrology are commonly taught together because both make heavy use of chemistry, chemical methods, and phase diagrams. Sedimentary petrology is commonly taught together with stratigraphy because it deals with the processes that form sedimentary rock. Modern sedimentary petrology is making increasing use of chemistry. … Critical Symbolic Virtual Narrative Open Petrology Open Article Page

Exploring foci of: Magnetic Resonance in Medicine • Vol 90 • No 2 Electromagnetic and <scp>RF</scp> pulse design simulation based optimization of an eight‐channel loop array for 11.7T brain imaging 2023 Purpose Optimization of transmit array performance is crucial in ultra‐high‐field MRI scanners such as 11.7T because of the increased RF losses and RF nonuniformity. This work presents a new workflow to investigate and minimize RF coil losses, and to choose the optimum coil configuration for imaging. Methods An 8‐channel transceiver loop‐array was simulated to analyze its loss mechanism at 499.415 MHz. A folded‐end RF shield was developed to limit radiation loss and improve the efficiency. The coil element length,… Open Article Page

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Explore Petrology W Topic Petrology Magnetic Resonance in Medicine • Vol 90 • No 2 Electromagnetic and <scp>RF</scp> pulse design simulation based optimization of an eight‐channel loop array for 11.7T brain imaging 2023 Purpose Optimization of transmit array performance is crucial in ultra‐high‐field MRI scanners such as 11.7T because of the increased RF losses and RF nonuniformity. This work presents a new workflow to investigate and minimize RF coil losses, and to choose t… Article Critical Symbolic Virtual Narrative Open Petrology Open Article Page