Experiments on the Adiabatic Toroidal Compressor

Bol, K.; Cecchi, J. L.; Daughney, C.; DeMarco, F.; Ellis, R.A.; Eubank, H. P.; Furth, H.P.; Hsuan, H.; Mazzucato, E.; Smith, R. R.

doi:10.2172/4203067

Cited by 18 publications

(41 citation statements)

References 2 publications

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“…[11] in a homogeneous plasma. T~e = 150eV; n e = 6.5 X 10 13 cm' 3 . Curve 4: curve calculated with the Monte-Carlo code: H-beam: 400 kW at 28 ke V; H-plasma: 1^ = 370 kA; B=60 kG; n e = l.l X i0 1 4 (1 -r 2 /a 2 ) 0il ; T e = 1900 (1 -r 2 ^2) 2 ' 1 .…”

Section: Fig 4 Contour Plots Of the Fast-ion Distribution In The \±mentioning

confidence: 99%

“…Fast-neutral injection experiments in CLEO [1 ], ORMAK [2], ATC [3], and PLT [4] have revealed features of this additional heating as a potential technique of increasing the ion temperature up to thermonuclear values: a) the fast-ion behaviour, particularly confinement and energy transfer, seems to be classical, and b) the ion temperature increases linearly with the injected power, at least up to present power levels (230 kW in ATC [3], 350 kW in ORMAK [2], and 1 MW in PLT [4]). In most of these experiments, the fast neutrals were injected tangentially to the magnetic axis.…”

Section: Introductionmentioning

confidence: 99%

“…In most of these experiments, the fast neutrals were injected tangentially to the magnetic axis. Perpendicular injection has been tested in ATC [3], but, owing to low electron density and plasma current, the heating efficiency of this configuration was rather poor.…”

Section: Introductionmentioning

confidence: 99%

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High-power neutral injection and ion power balance in TFR

Tfr¹

1978

Nucl. Fusion

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A fast-neutral power of up to 570 kW has been injected into TFR. At low densities (n̄e ≅ 2–3 × 1013 cm−3), the central ion temperature was doubled to 2 keV as a result of the injection. The ion temperature increases linearly with the injected power. Macroscopic perturbations due to the injected power yield information on the ion behaviour and the ion energy confinement time. There are indications, that the ion heat conduction might be anomalous. Effects of neutral injection on equilibrium, stability, and impurity concentration are discussed.

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Section: Fig 4 Contour Plots Of the Fast-ion Distribution In The \±mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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High-power neutral injection and ion power balance in TFR

Tfr¹

1978

Nucl. Fusion

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“…Neutral beams presently used for tangential injection into tokamak.s 1~2 , 25 are neither intense nor localized enough (f = nbEb/…”

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confidence: 99%

Electrostatic ion cyclotron instabilities driven by parallel ion beam injection

Seiler¹,

Hendel²,

Ikezi³

1976

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We report the detailed identification of two instabilities driven by an ion beam injected parallel to the confining magnetic field; a resonant ion cyclotron instability and a nonresonant ion cyclotron drift wave driven by the beam's density gradient. Experimental results are in good agreement with numerical calculations based on the kinetic Vlasov equations.Quasi-linear velocity space diffusion of the beam ions by wave-particle interaction is observed, demonstrating enhanced energy transfer. The relevance of these results to Tokamak neutral beam injection heating is discussed.

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“…Experimental results of this operation were reported by K. Bal, et.al. 5 A pre-compression plasma. current of 60 kA is achieved with a plasma loop voltage of 3 -5 V. This corresponds 'to a discharge resistance of -40 µn, which exceeds the classical resistance for a Z = 1 plasma by a factor of 3 -5, suggesting high Z impurity of the present•plasma.…”

Section: Resultsmentioning

confidence: 99%

Towards Fusion Reactor Ignition the Adiabatic Toroidal Compression System

Citrolo

1973

IEEE Trans. Nucl. Sci.

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A major probiem area in the study of the feasibility of fusion reactors is the attainment of hot dense plasma for experimental study and the determination of a heating scheme to reach ignition conditions in a reactor. Adiabatic compression in minor and major radius of •Tokamak configuration plasmas was proposed as a means of reaching this end. The Adiabatic Toroidal Compressor (ATC) was built at the Princeton Plasma Physics Laboratory to determine experimentally the feasibility of this technique. This paper de-s~ribes the engineering features of this machine. Preliminary results lndlcate that compression heating is a possible method of assisting reaching fusion i.gni ti.on temperatures.

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Experiments on the Adiabatic Toroidal Compressor

Cited by 18 publications

References 2 publications

High-power neutral injection and ion power balance in TFR

High-power neutral injection and ion power balance in TFR

Electrostatic ion cyclotron instabilities driven by parallel ion beam injection

Towards Fusion Reactor Ignition the Adiabatic Toroidal Compression System

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