Search Results - "Grierson, Brian A."

On the origin of the DIII-D L-H power threshold isotope effect by Callahan, Kyle, Schmitz, Lothar, Carter, Troy A., Belli, Emily A., Chrystal, Colin, Haskey, Shaun R., Grierson, Brian A., Thome, Kathreen E., Smith, Sterling P., McKee, George R., Staebler, Gary M., Holland, Christopher, Ashourvan, Arash, Yan, Zheng

“…The increased low to high confinement mode (L to H-mode) power threshold PLH in DIII-D hydrogen plasmas (compared to deuterium) is shown to result from lower…”
Get full text

Direct measurement of electron turbulence broadening edge transport barrier for facilitating core-edge integration in tokamak fusion plasmas by Wang, H. Q., Hong, Rongjie, Jian, Xiang, Rhodes, Terry L., Guo, Houyang Y., Leonard, Anthony W., Ma, Xinxing, Watkins, Jonathan, Ren, Jun, Grierson, Brian A., Shafer, Morgan, Scotti, Filippo, Osborne, Tom H., Thomas, Dan M., Yan, Z.

“…Abstract The integration of a high-performance core and a dissipative divertor or the so-called “core-edge integration” has been widely identified as a…”
Get full text

Decoupling of peeling and ballooning thresholds for pedestal stability and reduction in ELM frequency via enhanced turbulence with edge electron cyclotron heating in DIII-D by Banerjee, Santanu, Barada, K., Chrystal, C., Groebner, R., Mordijck, S., Odstrčil, T., Osborne, T., Rhodes, T.L., Scotti, F., Yan, Z., Zeng, L., Damba, J., Laggner, F., Haskey, S., Grierson, B., Chen, J., Saarelma, S., Pankin, A.

“…The edge localized mode (ELM) frequency ( f ELM ) decreased by 63% when electron cyclotron heating (ECH) deposition location is shifted from ρ = 0.4 to ρ = 0.8…”
Get full text

Study on divertor detachment and pedestal characteristics in the DIII-D upper closed divertor by Wang, H.Q., Thomas, D.M., Leonard, A.W., Ma, X.X., Guo, H.Y., Moser, A.L., Watkins, J.G., Scotti, F., Lasnier, C., Fenstermacher, M.E., McLean, A.G., Shafer, M.W., Grierson, B., Ren, J., Osborne, T.H.

“…Experiments performed in DIII-D demonstrate that higher plasma current and heating power combined with impurity seeding facilitate the achievement of divertor…”
Get full text

Access to a new plasma edge state with high density and pressures using the quiescent H mode by Solomon, W M, Snyder, P B, Burrell, K H, Fenstermacher, M E, Garofalo, A M, Grierson, B A, Loarte, A, McKee, G R, Nazikian, R, Osborne, T H

“…A path to a new high performance regime has been discovered in tokamaks that could improve the attractiveness of a fusion reactor. Experiments on DIII-D using…”
Get full text

On the origin of the DIII-D L-H power threshold isotope effect by Callahan, K.J., Schmitz, L., Carter, T.A., Belli, E.A., Chrystal, C., Haskey, S.R., Grierson, B.A., Thome, K.E., Smith, S.P., McKee, G.R., Staebler, G.M., Holland, C., Ashourvan, A., Yan, Z.

“…The increased low to high confinement mode (L to H-mode) power threshold P L H in DIII-D low collisionality hydrogen plasmas (compared to deuterium) is shown…”
Get full text

Integrated modeling of boron powder injection for real-time plasma-facing component conditioning by Effenberg, Florian, Schmid, Klaus, Nespoli, Federico, Bortolon, Alessandro, Feng, Yühe, Grierson, Brian A, Lore, Jeremy D, Maingi, Rajesh, Rudakov, Dmitry L

“…An integrated modeling framework for investigating the application of solid boron powder injection for real-time surface conditioning of plasma-facing…”
Get full text

Mitigation of plasma-wall interactions with low-Z powders in DIII-D high confinement plasmas by Effenberg, Florian, Bortolon, Alessandro, Casali, Livia, Nazikian, Raffi, Bykov, Igor, Scotti, Filippo, Wang, Huiqian Q, Fenstermacher, Max E, Lunsford, Robert, Nagy, Alexander, Grierson, Brian A, Laggner, Florian M, Maingi, Rajesh, Team, the DIII-D

“…Nucl. Fusion 62 106015 (2022) Experiments with low-Z powder injection in DIII-D high confinement discharges demonstrated increased divertor dissipation and…”
Get full text