The effects of anisotropic pressure on plasma displacement and its deviation from flux surfaces

A significant impact of pressure anisotropy on the plasma displacement associated with ideal Magnetohydrodynamic (MHD) stability is found. A heliotron plasma, such as a large helical device plasma, is analyzed. Simulations are performed using the equilibrium solver Anisotropic Neumann Inverse Moments Equilibrium Code and the ideal MHD stability code TERPSICHORE. Both codes provide a treatment of the pressure anisotropy by the bi-Maxwellian model. The ratio of hot particle pressure to total pressure &lt; β h &gt; / &lt; β &gt; has been scanned over. Other simulation parameters have been chosen such that the simulations represent an experimentally relevant condition with an external, off-axis heating scheme. The radial location of the peak of the plasma displacement of the n = 1, m = 2 mode number has been compared to the radial location of the ι = 0.5 resonant surface. This comparison shows that this difference in location increases monotonically for increasing &lt; β h &gt; / &lt; β &gt; . These results provide insight on the effect of external heating schemes on MHD stability.</p

The effects of anisotropic pressure on plasma displacement and its deviation from flux surfaces

A significant impact of pressure anisotropy on the plasma displacement associated with ideal Magnetohydrodynamic (MHD) stability is found. A heliotron plasma, such as a large helical device plasma, is analyzed. Simulations are performed using the equilibrium solver Anisotropic Neumann Inverse Moments Equilibrium Code and the ideal MHD stability code TERPSICHORE. Both codes provide a treatment of the pressure anisotropy by the bi-Maxwellian model. The ratio of hot particle pressure to total pressure &lt; β h &gt; / &lt; β &gt; has been scanned over. Other simulation parameters have been chosen such that the simulations represent an experimentally relevant condition with an external, off-axis heating scheme. The radial location of the peak of the plasma displacement of the n = 1, m = 2 mode number has been compared to the radial location of the ι = 0.5 resonant surface. This comparison shows that this difference in location increases monotonically for increasing &lt; β h &gt; / &lt; β &gt; . These results provide insight on the effect of external heating schemes on MHD stability.</p

Standardized reporting for Head CT Scans in patients suspected of traumatic brain injury (TBI) : an international expert endeavor

Abstract: Background and purposeTraumatic brain injury (TBI) is a major source of health loss and disability worldwide. Accurate and timely diagnosis of TBI is critical for appropriate treatment and management of the condition. Neuroimaging plays a crucial role in the diagnosis and characterization of TBI. Computed tomography (CT) is the first-line diagnostic imaging modality typically utilized in patients with suspected acute mild, moderate and severe TBI. Radiology reports play a crucial role in the diagnostic process, providing critical information about the location and extent of brain injury, as well as factors that could prevent secondary injury. However, the complexity and variability of radiology reports can make it challenging for healthcare providers to extract the necessary information for diagnosis and treatment planning.Methods/results/conclusionIn this article, we report the efforts of an international group of TBI imaging experts to develop a clinical radiology report template for CT scans obtained in patients suspected of TBI and consisting of fourteen different subdivisions (CT technique, mechanism of injury or clinical history, presence of scalp injuries, fractures, potential vascular injuries, potential injuries involving the extra-axial spaces, brain parenchymal injuries, potential injuries involving the cerebrospinal fluid spaces and the ventricular system, mass effect, secondary injuries, prior or coexisting pathology)

Standardized reporting for Head CT Scans in patients suspected of traumatic brain injury (TBI):An international expert endeavor

Background and purposeTraumatic brain injury (TBI) is a major source of health loss and disability worldwide. Accurate and timely diagnosis of TBI is critical for appropriate treatment and management of the condition. Neuroimaging plays a crucial role in the diagnosis and characterization of TBI. Computed tomography (CT) is the first-line diagnostic imaging modality typically utilized in patients with suspected acute mild, moderate and severe TBI. Radiology reports play a crucial role in the diagnostic process, providing critical information about the location and extent of brain injury, as well as factors that could prevent secondary injury. However, the complexity and variability of radiology reports can make it challenging for healthcare providers to extract the necessary information for diagnosis and treatment planning.Methods/results/conclusionIn this article, we report the efforts of an international group of TBI imaging experts to develop a clinical radiology report template for CT scans obtained in patients suspected of TBI and consisting of fourteen different subdivisions (CT technique, mechanism of injury or clinical history, presence of scalp injuries, fractures, potential vascular injuries, potential injuries involving the extra-axial spaces, brain parenchymal injuries, potential injuries involving the cerebrospinal fluid spaces and the ventricular system, mass effect, secondary injuries, prior or coexisting pathology)