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Title: Multi-energy SXR cameras for magnetically confined fusion plasmas (invited)

Journal Article · · Review of Scientific Instruments
DOI:https://doi.org/10.1063/1.4964807· OSTI ID:1340073

A compact multi-energy soft x-ray camera has been developed for time, energy and space-resolved measurements of the soft-x-ray emissivity in magnetically confined fusion plasmas. Multi-energy soft x-ray imaging provides a unique opportunity for measuring, simultaneously, a variety of important plasma properties (Te, nZ, ΔZeff, and ne,fast). The electron temperature can be obtained by modeling the slope of the continuum radiation from ratios of the available brightness and inverted radial emissivity profiles over multiple energy ranges. Impurity density measurements are also possible using the line-emission from medium- to high-Z impurities to separate the background as well as transient levels of metal contributions. As a result, this technique should be explored also as a burning plasma diagnostic in-view of its simplicity and robustness.

Research Organization:
Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
Sponsoring Organization:
USDOE
Contributing Organization:
Massachusetts Institute of Technology, Cambridge, Massachusetts; The Johns Hopkins University, Baltimore, Maryland
Grant/Contract Number:
AC02-09CH11466; FC02-99ER54512; OFES 2015 Early Career Award No. AT-10-20-10-1 at PPPL
OSTI ID:
1340073
Journal Information:
Review of Scientific Instruments, Vol. 87, Issue 11; Conference: 21st Topical Conference on High-Temperature Plasma Diagnostics, Madison, WI (United States), 5-9 Jun 2016; ISSN 0034-6748
Publisher:
American Institute of Physics (AIP)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 10 works
Citation information provided by
Web of Science

References (30)

Fast electron temperature measurements using a “multicolor” optical soft x-ray array journal October 2007
Upgrades of imaging x-ray crystal spectrometers for high-resolution and high-temperature plasma diagnostics on EAST journal November 2014
Compact “diode-based” multi-energy soft x-ray diagnostic for NSTX journal October 2012
Tomographic inversion techniques incorporating physical constraints for line integrated spectroscopy in stellarators and tokamaks journal November 2014
Soft x-ray pulse height analyzer in the HT-7 tokamak journal November 2004
Novel energy resolving x-ray pinhole camera on Alcator C-Mod journal October 2012
Fast multichannel electron temperature diagnostic for TFTR using x‐ray imaging journal May 1985
New Soft x-ray PHA Diagnostic in the HT-7 Tokamak journal June 2005
Investigation of ion and electron heat transport of high- T e ECH heated discharges in the large helical device journal January 2016
A new soft x-ray pulse height analysis array in the HL-2A tokamak journal December 2009
Tokamak Fusion Test Reactor prototype x‐ray pulse‐height analyzer diagnostic journal May 1985
Optimization of the configuration of pixilated detectors based on the Shannon-Nyquist theory journal October 2012
Imaging x-ray crystal spectrometers for KSTAR journal March 2003
Multi-energy soft-x-ray technique for impurity transport measurements in the fusion plasma edge journal September 2012
FLYCHK: Generalized population kinetics and spectral model for rapid spectroscopic analysis for all elements journal December 2005
Smooth Surface Morphology of Hydrogenated Amorphous Silicon Film Prepared by Plasma Enhanced Chemical Vapor Deposition journal October 2009
Electron temperature profile reconstructions from multi-energy SXR measurements using neural networks journal August 2013
Impurity transport experiments and effects on MHD in the National Spherical Torus Experiment (NSTX) journal July 2011
Spatially resolved high resolution x-ray spectroscopy for magnetically confined fusion plasmas (invited) journal October 2008
Non-resonant destabilization of (1/1) internal kink mode by suprathermal electron pressure journal May 2015
Soft x-ray measurements of resistive wall mode behavior in NSTX journal January 2011
A ‘multi-colour’ SXR diagnostic for time and space-resolved measurements of electron temperature, MHD activity and particle transport in MCF plasmas journal July 2007
A compact soft X-ray PHA in the HT-7 tokamak
  • Chen, Z. Y.; Wan, B. N.; Shi, Y. J.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 527, Issue 3 https://doi.org/10.1016/j.nima.2004.03.177
journal July 2004
Multi-energy x-ray detector calibration for Te and impurity density (nZ) measurements of MCF plasmas journal August 2016
X-ray imaging crystal spectroscopy for use in plasma transport research journal November 2012
Impurity transport studies in NSTX neutral beam heated H-mode plasmas journal July 2009
Soft x‐ray measurements from the PDX tokamak journal August 1982
Soft x-ray continuum radiation transmitted through metallic filters: An analytical approach to fast electron temperature measurements journal October 2010
Effects of thermal expansion of the crystal lattice on x-ray crystal spectrometers used for fusion research journal November 2013
A spatially resolving x-ray crystal spectrometer for measurement of ion-temperature and rotation-velocity profiles on the Alcator C-Mod tokamak journal October 2008

Cited By (3)

Pixel-to-pixel variation on a calibrated PILATUS3-based multi-energy soft x-ray detector journal October 2018
A computational tool for simulation and design of tangential multi-energy soft x-ray pin-hole cameras for tokamak plasmas journal October 2018
Simulation, design, and first test of a multi-energy soft x-ray (SXR) pinhole camera in the Madison Symmetric Torus (MST) journal October 2018

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