A novel, cost-effective, multi-point Thomson scattering system on the Pegasus Toroidal Experiment (invited)
Abstract
Here, a novel, cost-effective, multi-point Thomson scattering system has been designed, implemented, and operated on the Pegasus Toroidal Experiment. Leveraging advances in Nd:YAG lasers, high-efficiency volume phase holographic transmission gratings, and increased quantum-efficiency Generation 3 image-intensified charge coupled device (ICCD) cameras, the system provides Thomson spectra at eight spatial locations for a single grating/camera pair. The on-board digitization of the ICCD camera enables easy modular expansion, evidenced by recent extension from 4 to 12 plasma/background spatial location pairs. Stray light is rejected using time-of-flight methods suited to gated ICCDs, and background light is blocked during detector readout by a fast shutter. This –103 reduction in background light enables further expansion to up to 24 spatial locations. The implementation now provides single-shot Te(R) for ne > 5 × 1018 m–3.
- Authors:
-
- Univ. of Wisconsin-Madison, Madison, WI (United States)
- Publication Date:
- Research Org.:
- Univ. of Wisconsin, Madison, WI (United States)
- Sponsoring Org.:
- USDOE Office of Science (SC), Fusion Energy Sciences (FES)
- OSTI Identifier:
- 1334080
- Grant/Contract Number:
- FG02-96ER54375
- Resource Type:
- Journal Article: Accepted Manuscript
- Journal Name:
- Review of Scientific Instruments
- Additional Journal Information:
- Journal Volume: 87; Journal Issue: 11; Related Information: D.J. Schlossberg, G.M. Bodner, J.A. Reusch, M.W. Bongard, R.J. Fonck, and C. Rodriguez Sanchez, "Public Data Set: A Novel, Cost-Effective, Multi-Point Thomson Scattering System on the Pegasus Toroidal Experiment," DOI: 10.18138/1257860; 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; cameras; diffraction gratings; plasma diagnostics; calibration; light scattering
Citation Formats
Schlossberg, David J., Bodner, Grant M., Bongard, Michael W., Fonck, Raymond J., Reusch, Joshua A., and Rodriguez Sanchez, Cuauhtemoc. A novel, cost-effective, multi-point Thomson scattering system on the Pegasus Toroidal Experiment (invited). United States: N. p., 2016.
Web. doi:10.1063/1.4962193.
Schlossberg, David J., Bodner, Grant M., Bongard, Michael W., Fonck, Raymond J., Reusch, Joshua A., & Rodriguez Sanchez, Cuauhtemoc. A novel, cost-effective, multi-point Thomson scattering system on the Pegasus Toroidal Experiment (invited). United States. https://doi.org/10.1063/1.4962193
Schlossberg, David J., Bodner, Grant M., Bongard, Michael W., Fonck, Raymond J., Reusch, Joshua A., and Rodriguez Sanchez, Cuauhtemoc. 2016.
"A novel, cost-effective, multi-point Thomson scattering system on the Pegasus Toroidal Experiment (invited)". United States. https://doi.org/10.1063/1.4962193. https://www.osti.gov/servlets/purl/1334080.
@article{osti_1334080,
title = {A novel, cost-effective, multi-point Thomson scattering system on the Pegasus Toroidal Experiment (invited)},
author = {Schlossberg, David J. and Bodner, Grant M. and Bongard, Michael W. and Fonck, Raymond J. and Reusch, Joshua A. and Rodriguez Sanchez, Cuauhtemoc},
abstractNote = {Here, a novel, cost-effective, multi-point Thomson scattering system has been designed, implemented, and operated on the Pegasus Toroidal Experiment. Leveraging advances in Nd:YAG lasers, high-efficiency volume phase holographic transmission gratings, and increased quantum-efficiency Generation 3 image-intensified charge coupled device (ICCD) cameras, the system provides Thomson spectra at eight spatial locations for a single grating/camera pair. The on-board digitization of the ICCD camera enables easy modular expansion, evidenced by recent extension from 4 to 12 plasma/background spatial location pairs. Stray light is rejected using time-of-flight methods suited to gated ICCDs, and background light is blocked during detector readout by a fast shutter. This –103 reduction in background light enables further expansion to up to 24 spatial locations. The implementation now provides single-shot Te(R) for ne > 5 × 1018 m–3.},
doi = {10.1063/1.4962193},
url = {https://www.osti.gov/biblio/1334080},
journal = {Review of Scientific Instruments},
issn = {0034-6748},
number = 11,
volume = 87,
place = {United States},
year = {Fri Sep 16 00:00:00 EDT 2016},
month = {Fri Sep 16 00:00:00 EDT 2016}
}
Web of Science
Figures / Tables:
Works referenced in this record:
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journal, November 2013
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journal, October 2012
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journal, November 2014
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Initial implementation of a Thomson scattering diagnostic for Proto-MPEX
journal, November 2014
- Biewer, T. M.; Shaw, G.
- Review of Scientific Instruments, Vol. 85, Issue 11
Control and automation of the Pegasus multi-point Thomson scattering system
journal, August 2016
- Bodner, G. M.; Bongard, M. W.; Fonck, R. J.
- Review of Scientific Instruments, Vol. 87, Issue 11, Article No. 11E523
Public Data Set: Continuous, Edge Localized Ion Heating During Non-Solenoidal Plasma Startup and Sustainment in a Low Aspect Ratio Tokamak
dataset, January 2017
- Burke, Marcus; Barr, Jayson; Bongard, Michael
Public Data Set: A Power-Balance Model for Local Helicity Injection Startup in a Spherical Tokamak
dataset, May 2018
- Barr, J. L.; Bongard, M. W.; Burke, M. G.
- Pegasus Public Data Sets
Public Data Set: Non-inductively Driven Tokamak Plasmas at Near-Unity βt in the Pegasus Toroidal Experiment
dataset, March 2018
- Reusch, Joshua; Bodner, Grant; Bongard, Michael
- Pegasus-Supplementary information for journal article at DOI: 10.1063/1.5017966, 1 file (5.1 MB)
Public Data Set: Initiation and Sustainment of Tokamak Plasmas with Local Helicity Injection as the Majority Current Drive
dataset, July 2018
- Perry, Justin; Bodner, Grant; Bongard, Michael
- Pegasus-Supplementary information for journal article at DOI: https://doi.org/10.1088/1741-4326/aac72e, 1 file (17.1 MB)
Public Data Set: Radially Scanning Magnetic Probes to Study Local Helicity Injection Dynamics
dataset, July 2018
- Richner, Nathan; Bongard, Michael; Fonck, Raymond
- Pegasus-Supplementary information for journal article at DOI: 10.1063/1.5036527, 1 file (9.4 MB)
Public Data Set: Advancing Local Helicity Injection for Non-Solenoidal Tokamak Startup
dataset, January 2019
- Bongard, Michael; Bodner, Grant; Burke, Marcus
- University of Wisconsin-Madison
Public Data Set: Continuous, Edge Localized Ion Heating During Non-Solenoidal Plasma Startup and Sustainment in a Low Aspect Ratio Tokamak
dataset, January 2017
- Burke, Marcus; Barr, Jayson; Bongard, Michael
Public Data Set: A Power-Balance Model for Local Helicity Injection Startup in a Spherical Tokamak
dataset, May 2018
- Barr, J. L.; Bongard, M. W.; Burke, M. G.
- Pegasus Public Data Sets
Public Data Set: Non-inductively Driven Tokamak Plasmas at Near-Unity βt in the Pegasus Toroidal Experiment
dataset, March 2018
- Reusch, Joshua; Bodner, Grant; Bongard, Michael
- Pegasus-Supplementary information for journal article at DOI: 10.1063/1.5017966, 1 file (5.1 MB)
Public Data Set: Initiation and Sustainment of Tokamak Plasmas with Local Helicity Injection as the Majority Current Drive
dataset, July 2018
- Perry, Justin; Bodner, Grant; Bongard, Michael
- Pegasus-Supplementary information for journal article at DOI: https://doi.org/10.1088/1741-4326/aac72e, 1 file (17.1 MB)
Public Data Set: Radially Scanning Magnetic Probes to Study Local Helicity Injection Dynamics
dataset, July 2018
- Richner, Nathan; Bongard, Michael; Fonck, Raymond
- Pegasus-Supplementary information for journal article at DOI: 10.1063/1.5036527, 1 file (9.4 MB)
Public Data Set: Advancing Local Helicity Injection for Non-Solenoidal Tokamak Startup
dataset, January 2019
- Bongard, Michael; Bodner, Grant; Burke, Marcus
- University of Wisconsin-Madison
Works referencing / citing this record:
Non-inductively driven tokamak plasmas at near-unity βt in the P egasus toroidal experiment
journal, May 2018
- Reusch, J. A.; Bodner, G. M.; Bongard, M. W.
- Physics of Plasmas, Vol. 25, Issue 5
Public Data Set: A Novel, Cost-Effective, Multi-Point Thomson Scattering System on the Pegasus Toroidal Experiment
dataset, September 2016
- Schlossberg, D. J.; Bodner, G. M.; Reusch, J. A.
- AIP - Review of Scientific Instruments, Vol. 87, Issue 11, 49.6 MB
Public Data Set: Continuous, Edge Localized Ion Heating During Non-Solenoidal Plasma Startup and Sustainment in a Low Aspect Ratio Tokamak
dataset, January 2017
- Burke, Marcus; Barr, Jayson; Bongard, Michael
Public Data Set: A Power-Balance Model for Local Helicity Injection Startup in a Spherical Tokamak
dataset, May 2018
- Barr, J. L.; Bongard, M. W.; Burke, M. G.
- Pegasus Public Data Sets
Public Data Set: Non-inductively Driven Tokamak Plasmas at Near-Unity βt in the Pegasus Toroidal Experiment
dataset, March 2018
- Reusch, Joshua; Bodner, Grant; Bongard, Michael
- Pegasus-Supplementary information for journal article at DOI: 10.1063/1.5017966, 1 file (5.1 MB)
Public Data Set: Initiation and Sustainment of Tokamak Plasmas with Local Helicity Injection as the Majority Current Drive
dataset, July 2018
- Perry, Justin; Bodner, Grant; Bongard, Michael
- Pegasus-Supplementary information for journal article at DOI: https://doi.org/10.1088/1741-4326/aac72e, 1 file (17.1 MB)
Public Data Set: Radially Scanning Magnetic Probes to Study Local Helicity Injection Dynamics
dataset, July 2018
- Richner, Nathan; Bongard, Michael; Fonck, Raymond
- Pegasus-Supplementary information for journal article at DOI: 10.1063/1.5036527, 1 file (9.4 MB)
Public Data Set: Spatial Heterodyne Spectroscopy for High Speed Measurements of Stark Split Neutral Beam Emission in a High Temperature Plasma
dataset, January 2018
- Burke, Marcus; Fonck, Raymond; McKee, George
- University of Wisconsin-Madison
Public Data Set: Advancing Local Helicity Injection for Non-Solenoidal Tokamak Startup
dataset, January 2019
- Bongard, Michael; Bodner, Grant; Burke, Marcus
- University of Wisconsin-Madison
Figures / Tables found in this record: