Laboratory Characterization of an Imaging Reflectometer System
Abstract
While microwave reflectometry has proven to be a sensitive tool for measuring electron density fluctuations in many circumstances, it has also been shown to have limited viability for core measurements and/or conditions of strong turbulence. To this end, a new instrument based on 2-D imaging reflectometry has been developed to measure density fluctuations over an extended plasma region in the TEXTOR tokamak. Laboratory characterization of this instrument has been performed using corrugated reflecting targets as an approximation to plasma reflections including 2-D turbulent fluctuations of various magnitude and poloidal wavenumber. Within this approximation, the imaging reflectometer can recover the spectral and spatial characteristics of the reflection layer lost to or otherwise inaccessible to conventional techniques.
- Authors:
- Publication Date:
- Research Org.:
- Princeton Plasma Physics Lab. (PPPL), Princeton, NJ (United States)
- Sponsoring Org.:
- USDOE Office of Science (US)
- OSTI Identifier:
- 809962
- Report Number(s):
- PPPL-3767
TRN: US0302660
- DOE Contract Number:
- AC02-76CH03073
- Resource Type:
- Technical Report
- Resource Relation:
- Other Information: PBD: 14 Jan 2003
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 70 PLASMA PHYSICS AND FUSION TECHNOLOGY; ELECTRON DENSITY; FLUCTUATIONS; PLASMA; REFLECTION; TARGETS; TEXTOR TOKAMAK; TURBULENCE; VIABILITY; MICROWAVES; REFLECTOMETER
Citation Formats
Munsat, T, Mazzucato, E, Park, H, Domier, C W, Luhmann, Jr, N C, Donne, A J.H., and de Pol, M van. Laboratory Characterization of an Imaging Reflectometer System. United States: N. p., 2003.
Web. doi:10.2172/809962.
Munsat, T, Mazzucato, E, Park, H, Domier, C W, Luhmann, Jr, N C, Donne, A J.H., & de Pol, M van. Laboratory Characterization of an Imaging Reflectometer System. United States. https://doi.org/10.2172/809962
Munsat, T, Mazzucato, E, Park, H, Domier, C W, Luhmann, Jr, N C, Donne, A J.H., and de Pol, M van. 2003.
"Laboratory Characterization of an Imaging Reflectometer System". United States. https://doi.org/10.2172/809962. https://www.osti.gov/servlets/purl/809962.
@article{osti_809962,
title = {Laboratory Characterization of an Imaging Reflectometer System},
author = {Munsat, T and Mazzucato, E and Park, H and Domier, C W and Luhmann, Jr, N C and Donne, A J.H. and de Pol, M van},
abstractNote = {While microwave reflectometry has proven to be a sensitive tool for measuring electron density fluctuations in many circumstances, it has also been shown to have limited viability for core measurements and/or conditions of strong turbulence. To this end, a new instrument based on 2-D imaging reflectometry has been developed to measure density fluctuations over an extended plasma region in the TEXTOR tokamak. Laboratory characterization of this instrument has been performed using corrugated reflecting targets as an approximation to plasma reflections including 2-D turbulent fluctuations of various magnitude and poloidal wavenumber. Within this approximation, the imaging reflectometer can recover the spectral and spatial characteristics of the reflection layer lost to or otherwise inaccessible to conventional techniques.},
doi = {10.2172/809962},
url = {https://www.osti.gov/biblio/809962},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jan 14 00:00:00 EST 2003},
month = {Tue Jan 14 00:00:00 EST 2003}
}