Graduate Thesis
Publications
- S. Banerjee, W. Capecchi, et al. “Investigating the role of edge neutrals in exciting tearing mode activity and achieving flat temperature profiles in LTX-β” Nucl. Fusion 64, 046026 (2024).
- A Maan, W. Capecchi, et al. “Estimates of global recycling coefficients for LTX-β discharges” Phys. Plasmas 31, 022505 (2024).
- A. Maan, W. Capecchi, et al. “Improved neutral and plasma density control with increasing lithium wall coatings in the Lithium Tokamak Experiment-β (LTX-β)” Nuclear Materials and Energy 35, 101408 (2023).
- D.P. Boyle, W. Capecchi, et al. “Extending the low-recycling, flat temperature profile regime in the lithium tokamak experiment-β (LTX-β) with ohmic and neutral beam heating” Nucl. Fusion 63, 056020 (2023).
- W. Capecchi, et al. “Neutral beam prompt loss in LTX-β” Nucl. Fusion 61, 126014 (2021).
- P.E. Hughes, W. Capecchi, et al. “Toroidal plasma acceleration due to NBI fast ion losses in LTX-β” Plasma Phys. Control. Fusion 63, 085020 (2021).
- W. Capecchi, et al. “A Measure of Fast Ion Beta at Marginal Stability in the Reversed Field Pinch” Nuclear Fusion 59, 086026 (2019).
- W. Capecchi, et al. “A collimated neutron detector for RFP plasmas in MST” Rev Sci Instrum 87, 11D826 (2016).
- J.K. Anderson, W. Capecchi, et al. “Dynamics of a reconnection-driven runaway ion tail in a reversed field pinch plasma” Phys. Plasmas 23, 055702 (2016).
- J. Kim, W. Capecchi, et al. “Analysis techniques for diagnosing runaway ion distributions in the reversed field pinch” Rev Sci Instrum 87 11D819 (2016).
- P. J. Bonofiglo, W. Capecchi, et al. “Development Toward a Fast Ion Loss Detector for the Reversed Field Pinch” Rev. Sci. Instrum. 87, 11D824 (2016).
- J.K. Anderson, W. Capecchi, et al. “Fast ion confinement in the three-dimensional helical reversed-field pinch” Plasma Physics and Controlled Fusion 56 (9) 094006 (2014).
- L. Lin, W. Capecchi, et al. “Energetic-particle-driven instabilities and induced fast-ion transport in the RFP” Physics of Plasmas 21, 056104 (2014).
- K.C. Hammond, W. Capecchi, et al. “Metamaterial lens of specifiable frequency-dependent focus and adjustable aperture for electron cyclotron emission in the DIII-D tokamak” Journal of Infrared, Millimeter, and Terahertz Waves 34, 437–455 (2013).
- W. Capecchi, et al. “Reverse chromatic aberration and its numerical optimization in a metamaterial lens” Optics Express 20 (8) pp. 8761-8769 (2012).
- W. Capecchi, T.Q. Sibley, “When the trivial is nontrivial” Pi Mu Epsilon Journal 13 (6) pp. 333-336
Presentations
- W. Capecchi, et al. “A tensioned 2D wire calorimeter for neutral beam profile measurements on LTX-β” [poster] Proceedings of the 25th Topical Conference on High Temperature Plasma Diagnostics. Asheville, NC (2024).
- W. Capecchi, et al. “Improved neutral beam injection and diagnostics on LTX-β” [poster] Proceedings of the 66th Annual Meeting of the APS Division of Plasma Physics Conference. Atlanta, GA (2024).
- W. Capecchi, et al. “Status of neutral beam and supporting diagnostics on LTX-β” [poster] Proceedings of the 65th Annual Meeting of the APS Division of Plasma Physics Conference. Denver, CO (2023).
- W. Capecchi, et al. “Neutral beam heating of flat-temperature profile plasmas in LTX-β” [poster] Proceedings of the 64th Annual Meeting of the APS Division of Plasma Physics Conference. Spokane, WA (2022).
- W. Capecchi, et al. “Neutral beam prompt loss in LTX-β” [poster] Proceedings of the 63rd Annual Meeting of the APS Division of Plasma Physics Conference. Pittsburgh, PA (2021).
- W. Capecchi, et al. “Optimized beam fueling in LTX-β” [poster] Proceedings of the 62nd Annual Meeting of the APS Division of Plasma Physics Conference. [Remote] (2020).
- W. Capecchi, et al. “A neutral particle analyzer for fast ion physics studies in LTX-β” [poster] Proceedings of the 61st Annual Meeting of the APS Division of Plasma Physics Conference. Ft. Lauderdale, FL (2019).
- W. Capecchi, et al. “Fast ion beta limit measurements by collimated neutron detection in MST” [poster] Proceedings of the 57th Annual Meeting of the APS Division of Plasma Physics Conference. Savannah, GA (2015).
- W. Capecchi, et al. “Energetic Particle Physics in the MST Reversed Field Pinch” [talk] US/EU Transport Task Force Workshop. Salem, MA (2015).
- W. Capecchi, et al. “Fast ion beta limit measurements by collimated neutron detection in the MST” [poster] Workshop on Exploratory Topics in Plasma and Fusion Research (EPR). Madison, WI (2014).
- W. Capecchi, et al. “Investigation of the fast ion beta limit in MST” [poster] Proceedings of the 55th Annual Meeting of the APS Division of Plasma Physics Conference. Denver, CO (2013).
- W. Capecchi, et al. “Multi-frequency reflectometer for edge density profile and fluctuation measurement on MST” [poster] Proceedings of the 54th Annual Meeting of the APS Division of Plasma Physics Conference. Providence, RI (2012).