Using integrated data analysis to extend measurement capability (invited)
Abstract
The analysis approach called integrated data analysis (IDA) provides a means to exploit all information present in multiple streams of raw data to produce the best inference of a plasma parameter. This contrasts with the typical approach in which information (data) from a single diagnostic is used to measure a given parameter, e.g., visible bremsstrahlung → Zeff. Data from a given diagnostic usually contain information on many parameters. For example, a Thomson scattering diagnostic is sensitive to bremsstrahlung and line emission in addition to electron temperature. This background light is typically subtracted off and discarded but could be used to improve knowledge of Zeff. IDA encourages explicit awareness of such information and provides the quantitative framework to exploit it. This gives IDA the ability to increase spatial and temporal resolution, increase precision and accuracy of inferences, and measure plasma parameters that are difficult or impossible to measure using single diagnostic techniques. One example is the measurement of Zeff on Madison symmetric torus using IDA since no single diagnostic can provide a robust measurement. Thus, as we enter the burning plasma era, application of IDA will be critical to the measurement of certain parameters, as diagnostic access in the harsh fusionmore »
- Publication Date:
- Research Org.:
- Univ. of Wisconsin, Madison, WI (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Fusion Energy Sciences (FES)
- OSTI Identifier:
- 1464938
- Alternate Identifier(s):
- OSTI ID: 1463942
- Grant/Contract Number:
- FC02-05ER54814; SC0015474
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Review of Scientific Instruments
- Additional Journal Information:
- Journal Volume: 89; Journal Issue: 10; Journal ID: ISSN 0034-6748
- Publisher:
- American Institute of Physics (AIP)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 70 PLASMA PHYSICS AND FUSION TECHNOLOGY; 97 MATHEMATICS AND COMPUTING; emission spectroscopy; statistical analysis; x-ray scattering; probability theory; electromagnetic radiation
Citation Formats
Reusch, L. M., Nornberg, M. D., Goetz, J. A., and Den Hartog, D. J. Using integrated data analysis to extend measurement capability (invited). United States: N. p., 2018.
Web. doi:10.1063/1.5039349.
Reusch, L. M., Nornberg, M. D., Goetz, J. A., & Den Hartog, D. J. Using integrated data analysis to extend measurement capability (invited). United States. https://doi.org/10.1063/1.5039349
Reusch, L. M., Nornberg, M. D., Goetz, J. A., and Den Hartog, D. J. Fri .
"Using integrated data analysis to extend measurement capability (invited)". United States. https://doi.org/10.1063/1.5039349. https://www.osti.gov/servlets/purl/1464938.
@article{osti_1464938,
title = {Using integrated data analysis to extend measurement capability (invited)},
author = {Reusch, L. M. and Nornberg, M. D. and Goetz, J. A. and Den Hartog, D. J.},
abstractNote = {The analysis approach called integrated data analysis (IDA) provides a means to exploit all information present in multiple streams of raw data to produce the best inference of a plasma parameter. This contrasts with the typical approach in which information (data) from a single diagnostic is used to measure a given parameter, e.g., visible bremsstrahlung → Zeff. Data from a given diagnostic usually contain information on many parameters. For example, a Thomson scattering diagnostic is sensitive to bremsstrahlung and line emission in addition to electron temperature. This background light is typically subtracted off and discarded but could be used to improve knowledge of Zeff. IDA encourages explicit awareness of such information and provides the quantitative framework to exploit it. This gives IDA the ability to increase spatial and temporal resolution, increase precision and accuracy of inferences, and measure plasma parameters that are difficult or impossible to measure using single diagnostic techniques. One example is the measurement of Zeff on Madison symmetric torus using IDA since no single diagnostic can provide a robust measurement. Thus, as we enter the burning plasma era, application of IDA will be critical to the measurement of certain parameters, as diagnostic access in the harsh fusion environment will be extremely limited.},
doi = {10.1063/1.5039349},
journal = {Review of Scientific Instruments},
number = 10,
volume = 89,
place = {United States},
year = {Fri Aug 10 00:00:00 EDT 2018},
month = {Fri Aug 10 00:00:00 EDT 2018}
}
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