11C-Labeling of Indolealkylamine Alkaloids and the Comparative Study of Their Biodistributions

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Preservation of Glucose Metabolism in Caudate Region at the Terminal Stage of Late-Infantile Neuronal Ceroid-Lipofuscinosis

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Characteristics of Specific in Vivo Labeling of Neuroleptic Binding Sites with 3-[11C]Methylspiperone

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A Comparative Study between Brain Atrophy and Cerebral Blood Flow in Aged Normals and Patients with Reversible Ischemic Attacks

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Absolute value measurement of ion-scale turbulence by two-dimensional phase contrast imaging in Large Helical Device

Absolute value measurements of turbulence amplitude in magnetically confined high-temperature plasmas can effectively explain turbulence-driven transport characteristics and their role in plasma confinements. Two-dimensional phase contrast imaging (2D-PCI) is a technique to evaluate the space-time spectrum of ion-scale electron density fluctuation. However, absolute value measurement of turbulence amplitude has not been conducted owing to the nonlinearity of the detector. In this study, the absolute measurement method proposed in the previous study is applied to turbulence measurement results in the large helical device. As a result, the localized turbulence amplitude at $n_e=1.5\times 10^{19}$m$^{-3}$ is approximately $3.5\times 10^{15}$m$^{-3}$, which is 0.02\% of the electron density. In addition, the evaluated poloidal wavenumber spectrum is almost consistent, within a certain error range, the spectrum being calculated using a nonlinear gyrokinetic simulation. This result is the first to the best of our knowledge to quantitatively evaluate turbulence amplitudes measured by 2D-PCI and compare with simulations

11C-Labeled Dimethyltryptamine: A New Radiopharmaceutical for the Brain Imaging

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Normal Distribution of the Muscarinic Cholinergic Receptors in the Human Brain Studied with 11C-Benztropine and the Human Brain Atlas System

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