Design Parameters and Objectives of a High-Resolution X-ray Imaging Crystal Spectrometer for the Large Helical Device (LHD)
Description
A high-resolution X-ray imaging crystal spectrometer, whose instrumental concept was thoroughly tested on NSTX and Alcator C-Mod, is presently being designed for LHD. The instrument will record spatially resolved spectra of helium-like Ar16+ and provide ion temperature profiles with spatial and temporal resolutions of 1 cm and > 10 ms which are obtained by a tomographic inversion of the spectral data, using the stellarator equilibrium reconstruction codes, STELLOPT and PIES. Since the spectrometer will be equipped with radiation hardened, high count rate, PILATUS detectors, it is expected to be operational for all experimental conditions on LHD, which include plasmas of high density and plasmas with auxiliary RF and neutral beam heating. The special design features required by the magnetic field structure at LHD will be described.
Availability note (English)
Also available from OSTI as DE00981706; PURL: https://www.osti.gov/servlets/purl/981706-S6pxSL/
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Additional details
Identifiers
Publishing Information
- Imprint Pagination
- 20 p.
- Report number
- PPPL--4514
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 41103166
- Subject category
- S70: PLASMA PHYSICS AND FUSION TECHNOLOGY;
- Descriptors DEI
- DESIGN; HEATING; ION TEMPERATURE; MAGNETIC FIELDS; RADIATIONS; SPECTRA; SPECTROMETERS; STELLARATORS
- Descriptors DEC
- CLOSED PLASMA DEVICES; MEASURING INSTRUMENTS; THERMONUCLEAR DEVICES
Optional Information
- Contract/Grant/Project number
- ACO2-09CH11466
- Notes
- Review of Scientific Instruments (May 2010); doi 10.2172/981706
- Funding organization
- US Department of Energy (United States); USDOE Office of Science (United States)