Objectives and Layout of a High-Resolution X-ray Imaging Crystal Spectrometer for the Large Helical Device (LHD)
Authors: M. Bitter, K. Hill, D. Gates, D. Monticello, H. Neilson, A. Reiman, A. L. Roquemore, S. Morita, M. Goto, H. Yamada, J. E. Rice
Abstract:
A high-resolution X-ray imaging crystal spectrometer, whose concept was tested on NSTX and Alcator C-Mod, is being designed for LHD. This instrument will record spatially resolved spectra of helium-like Ar16+ and provide ion temperature profiles with spatial and temporal resolutions of < 2 cm and ≥ 10 ms. The stellarator equilibrium reconstruction codes, STELLOPT and PIES, will be used for the tomographic inversion of the spectral data. The spectrometer layout and instrumental features are largely determined by the magnetic field structure of LHD.
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Accepted to: Review of Scientific Instruments (May, 2010)
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Download PPPL-4538 (pdf 8 MB 4 pp)
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