Particle control study towards burning plasma control in JT-60U

Takenaga, H.

doi:10.1016/j.jnucmat.2009.01.227

Cited by 15 publications

(19 citation statements)

References 17 publications

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“…In addition, the SMBI yields comparable penetration depth of the deposited fuel as fueling scheme using the injection of pellets. Nowadays the SMBI have been widely applied to many tokamak devices such as HL-2A [11], KSTAR [12], W7-AS [13], JT-60U [14], and EAST [15]. Furthermore, the construction cost of the SMBI system is less than that of the PI system.…”

Section: Introductionmentioning

confidence: 99%

Numerical Study of Supersonic Molecular Beam Injection System in Thailand Tokamak I

Promping¹,

Wisitsorasak

Chatthong

et al. 2020

Plasma and Fusion Research

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Thailand Institute of Nuclear Technology (TINT) is planning to develop Thailand Tokamak I from HT-6 M tokamak. In the first phase of operation, the device will be equipped with two fueling systems: gas puffing (GP) and supersonic molecular beam injection (SMBI). Since the SMBI system has never been used experimentally with this device, this work, therefore, numerically studies the penetration features of SMBI in the plasma of Thailand Tokamak I, based on the nominal parameters of HT-6 M tokamak. The interaction of the supersonic molecules with the plasma has been computed by BOUT++ code which solves six-field fluid model of SMBI model in the radial direction. The preliminary results demonstrate that the SMBI is an efficient method for fueling the plasma and the beam can be delivered to the center of the plasma core.

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Section: Introductionmentioning

confidence: 99%

Numerical Study of Supersonic Molecular Beam Injection System in Thailand Tokamak I

Promping¹,

Wisitsorasak

Chatthong

et al. 2020

Plasma and Fusion Research

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“…Owing to the dissociation and ionization processes, the fueling efficiency is expected to also depend on different fueling techniques. Pellet injection is expected to have the highest fueling efficiency with an ablation process to allow a deeper position for dissociation and ionization process, as shown by the experimental results (Takenaga et al 2009). The fueling efficiency for SMBI is lower than that for pellet injection but higher than GP because the directed motion of the SMB with high velocity enables a higher proportion of Fig.…”

Section: Comparison Of Fueling Efficiency Between Different Fueling T...mentioning

confidence: 91%

“…Because SMBI has a higher fueling efficiency than GP under different regimes, it could assume the role of GP in fusion devices. Because of its good performance and further optimization in the future (Yao et al 2004(Yao et al , 2007Pegourie et al 2003;Zheng et al 2013;Lang et al 2005;Soukhanovskii et al 2004;Takenaga et al 2009;Kim et al 2013;Murakami et al 2012;Mizuuchi et al 2010;Xiao et al 2014aXiao et al , 2021Yao and Baldzuhn 1933;Tanna et al 2019;Islam et al 2016), SMBI might play a pivotal Fig. 11 Fueling efficiencies of the SMBI system and GP in different plasma discharge regimes (Yuan et al 2018) role under a variety of conditions for future fusion devices, such as the start-up phase and pellet-free injection of helium discharge.…”

Section: Smbi Fueling Efficiency In Different Confinement Regimesmentioning

confidence: 99%

“…Its high fueling efficiency was also demonstrated in several tokamaks, such as HL-2A (Yao et al 2007, Tore Supra (Pegourie et al 2003), and EAST (Zheng et al 2013). Thus, it has been widely implemented in many notable fusion research devices, such as ASDEX Upgrade (Lang et al 2005), NSTX (Soukhanovskii et al 2004), JT-60U (Takenaga et al 2009) KSTAR (Kim et al 2013), LHD (Murakami et al 2012), Heliotron J (Mizuuchi et al 2010), J-TEXT (Xiao et al 2014a), W7-AS (Yao and Baldzuhn 1933), ADITYA-U (Tanna et al 2019), andGAMMA 10 (Islam et al 2016). Owing to its flexibility and fast response, the SMBI technique has also been well developed for density feedback control on HL-2A and EAST (Zheng et al 2013).…”

Section: Introductionmentioning

confidence: 99%

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A review of supersonic molecular beam injection for plasma fueling and physical studies in magnetic fusion devices

Xiao

Zhong

Duan

et al. 2022

Rev. Mod. Plasma Phys.

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In magnetic confinement fusion devices, supersonic molecular beam injection (SMBI) is commonly used as a fueling method, which has also performed well in physical studies since it was first proposed on the HL-1 tokamak by Southwestern Institute of Physics. This study presents the development of the SMBI technique since its first use in fusion experimental devices and reviews the progress on the investigation of plasma physics using the SMBI. In addition, this study further discusses the potential applications of the SMBI technique on future fusion devices.

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“…Similar analyses are done in some researchers; e.g., the current drive simulation with the measurement of current profile peaking factor [4], the current drive and control simulation in ITER [5,6], the density profile control analysis in ASDEX [7]. The plasma burn control simulation is done in JT-60U [8][9][10] and in Ref [11]. In most of these researches, they control one parameter with one actuator for moderate performance plasma.…”

Section: Introductionmentioning

confidence: 88%

Research on Burn Control of Core Plasma with the Transport Code

Miyoshi

Ogawa

Nakamura

2012

Plasma and Fusion Research

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For the fusion reactors or experimental devices, one will be required to control several plasma parameters, like the fusion power, the heat flux, the neutron flux, the beta-value and so on. To control these parameters, many diagnostics and actuators are needed, but the diagnostics and actuators available in DEMO/commercial reactors are limited because of the high heat or neutron flux. For these reasons, to realize the fusion reactors, the construction of the reactor control logic is required. We are developing the burn control logic in the core plasma with a 1.5D transport code, and discussing on the relationship between control parameters and actuators. To demonstrate the feasibility of the core plasma control, we have demonstrated the simultaneous control of the fusion power and the safety factor profile with the gas-puff and NBI.

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Particle control study towards burning plasma control in JT-60U

Cited by 15 publications

References 17 publications

Numerical Study of Supersonic Molecular Beam Injection System in Thailand Tokamak I

Numerical Study of Supersonic Molecular Beam Injection System in Thailand Tokamak I

A review of supersonic molecular beam injection for plasma fueling and physical studies in magnetic fusion devices

Research on Burn Control of Core Plasma with the Transport Code

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