英国物理学会
期刊
会议
图书
作者:P.B. Parks , W. Wu
来源:[J].Nuclear Fusion(IF 2.734), 2014, Vol.54 (2)IOP
摘要:This paper is about the dynamics of gas jet injection and propagation into the cold, current quench (CQ) discharge following the thermal quench (TQ) phase of a disruption event. Understanding the processes involved in the interpenetration between a dense, fast-moving superso...
作者:P.B. Parks , N.W. Eidietis ...
来源:[J].Nuclear Fusion(IF 2.734), 2015, Vol.55 (7)IOP
摘要:Simulations of massive gas injection for disruption mitigation in DIII-D are carried out to compare the toroidal peaking of radiated power for the cases of one and two gas jets. The radiation toroidal peaking factor (TPF) results from a combination of the distribution of impuriti...
作者:P.B. Parks , C. Chrystal ...
来源:[J].Nuclear Fusion(IF 2.734), 2016, Vol.56 (5)IOP
摘要:A newly installed Lithium Granule Injector (LGI) was used to pace edge localized modes (ELM) in DIII-D. ELM pacing efficiency was studied injecting lithium granules of nominal diameter 0.3–0.9 mm, speed of 50–120 m s−1 and average injection rates up to 100 Hz...
作者:P.B. Parks , R. Lunsford
来源:[J].Nuclear Fusion(IF 2.734), 2017, Vol.57 (5)IOP
摘要:In this paper, we present simulations of pedestal control by lithium granule injection (LGI) in NSTX. A model for small granule ablation has been implemented in the M3D-C1 code (Jardin et al 2012 Comput. Sci. Discovery 5 014002), allowing the simulation of realistic lithium granu...
作者:P.B. Parks , M.A. Van Zeeland ...
来源:[J].Nuclear Fusion(IF 2.734), 2019, Vol.59 (8)IOP
摘要:Injection of solid pellets is a key element in several aspects of the operation of a magnetic confinement plasma reactor for fusion applications, including plasma fueling, control and diagnosis. This letter reports observations demonstrating that pellet ablation can begin ou...
作者:P.B. Parks , M.E. Austin ...
来源:[J].Nuclear Fusion(IF 2.734), 2017, Vol.57 (1)IOP
摘要:Small (2–3 mm, 0.9–2 Pa · m3) argon pellets are used in the DIII-D tokamak to cause rapid shutdown (disruption) of discharges. The Ar pellet ablation is typically found to be much larger than expected from the thermal plasma electron temperature alone; the ad...
作者:P.B. Parks , W. Wu
来源:[J].Nuclear Fusion(IF 2.734), 2011, Vol.51 (7), pp.073014 (13pp)IOP
摘要:Modelling high-pressure gas flows through long extended delivery tubes used for massive particle fuelling of tokamaks during a major disruptive instability or a preemptive fast plasma shutdown is presented using analytical theory and simulation. For steady-state flows, expression...
作者:P.B. Parks , T.C. Jernigan ...
来源:[J].Nuclear Fusion(IF 2.734), 2010, Vol.50 (2), pp.025011 (8pp)IOP
摘要:Pellet injection is planned to be the main fuelling method on ITER. The high temperature of the plasma during a fusion burn will limit the penetration of the pellet to the outer third of the minor radius. This limited penetration is expected to be compensated by a polarization dr...
作者:V.A. Izzo , P.B. Parks
来源:[J].Nuclear Fusion(IF 2.734), 2010, Vol.50 (5), pp.058001 (2pp)IOP
摘要:In tokamak disruptions, a brief increase in the total plasma current—an I p spike—frequently precedes the current quench. The I p spike is commonly attributed to an internal reconnection event that lowers the internal inductance. Plasma current spikes...
作者:P.B. Parks , D.A. Humphreys ...
来源:[J].Nuclear Fusion(IF 2.734), 2010, Vol.50 (11), pp.112001 (4pp)IOP
摘要:A severe consequence of a disruption on large tokamaks such as ITER could be the generation of multi-megaelectronvolt electron beams that could damage the vacuum vessel and the structures of the machine if they hit the wall unmitigated. The mitigation of runaway electron beams is...

我们正在为您处理中,这可能需要一些时间,请稍等。

资源合作:cnki.scholar@cnki.net, +86-10-82896619   意见反馈:scholar@cnki.net

×