Confinement of Fusion-Produced Tritium in the Princeton Large Torus

Colestock, P.; Strachan, J.; Ulrickson, M.; Chrien, R. E.

doi:10.1103/physrevlett.43.768

Cited by 40 publications

(32 citation statements)

References 6 publications

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“…We conclude that the greater accuracy of activation techniques probably accounts for most of the difference between the results reported here and those reported in Ref. [ 1 ].…”

Section: Triton Burn-up Datacontrasting

confidence: 50%

“…PLT measurements [ 1 ]; the difference is probably due primarily to the greater accuracy of the diagnostic techniques employed here. The 3 He burn-up measured at 2.2 T was about 3 X 10" 4 , which is also consistent with classical theory.…”

mentioning

confidence: 91%

“…Previously, confinement of 1 MeV tritons in the PLT tokamak was reported [ 1 ] in the first investigation of fusion reaction product confinement in a tokamak. In this paper, those results are extended to include more accurate triton confinement diagnostics.…”

Section: Introductionmentioning

confidence: 99%

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Burn-up of fusion-produced tritons and³He ions in PLT and PDX

Heidbrink¹,

Chrien²,

Strachan³

1983

Nucl. Fusion

116

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He ion 'burn-up' was measured on the PLT and PDX tokamaks by detection of the 14 MeV neutron and 15 MeV proton emission. In discharges with B,j>> 2 T, the measured ^e and triton burn-up is consistent (within a factor of three) with predictions based on classical theories of ion confinement and slowing down. In discharges with weaker toroidal fields but constant plasma current, the burn-up of both ions fell by more than a factor of ten so that the observed burn-up was significantly less than expected classically.

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“…We conclude that the greater accuracy of activation techniques probably accounts for most of the difference between the results reported here and those reported in Ref. [ 1 ].…”

Section: Triton Burn-up Datacontrasting

confidence: 50%

mentioning

confidence: 91%

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Burn-up of fusion-produced tritons and³He ions in PLT and PDX

Heidbrink¹,

Chrien²,

Strachan³

1983

Nucl. Fusion

116

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“…Such heating generates two sources of 3 3 energetic "^He particles: 1) He pumped by absorption of wave power to energy levels of .^ 200 keV or more depending on the confined energetic born He as the particles pass through the reaction resonance energy, similar to measurements reported [31] for the confinement of fusion-produced tritium by 14-MeV neutron diagnostics of deuterium plasmas heated by deuterium neutral beam injection in PLT. We also note that comparison of the He(d,Y) and the D(d,n) reaction rates using fusion gamma and neutron diagnostics, respectively, would provide a measurement of the approach to plasma ignition when the relative densities of D and 3 He are known, as is expected.…”

supporting

confidence: 55%

Fusion gamma diagnostics for D-T and D-/sup 3/He plasmas

Medley¹,

Hendel²

1982

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Nuclear reactions of interest in controlled thermonuclear fusion research often possess a branch yielding pron5>t emission of gamma radiation.In principle, the gamma emission can be exploited to provide a new fusion diagnostic offering measurements conparable to those obtained by the well established neutron diagnostics methods. The conceptual aspects for a fusion gamma diagnostic are discussed in this paper and the feasibility for application to the Tokamak Fusion Test Reactor during deuterium neutral beam heating of a D-T plasma and minority ion cyclotron resonance heating of a D-'^He plasma is examined.-DISCLAIMER •

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“…A substantial fraction of the 1 MeV tritons produced by the d(d,t)p fusion reactions in a D plasma is confined by the plasma current in large present-day tokamak plasmas. While slowing down, a small proportion of the tritons react with plasma deuterons to produce 14 1.5x10 10 -23detectors, 78 activation foils, 79 fission detectors, 80 and a combination of activation foils, NE213 spectrometers and Si surface-barrier detectors. 81 Figure 15 shows typical measurements on TFTR 80,81 of the time evolution of the neutron source strength of the plasma and comparison with calculations.…”

Section: D-t Neutron Production In D Plasmas From Burnup Of D-d Tritonsmentioning

confidence: 99%

The Tokamak as a Neutron Source

Hendel

Jassby

1990

Nuclear Science and Engineering

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This paper describes the tokamak in its role as a neutron source, with emphasis on experimental results for D-D neutron production. The sections summarize tokamak operation, sources of fusion and non-fusion neutrons, principal nsutron detection methods and their calibration, neutron energy spectra and fluxes outside the tokamak plasma chamber, history of neutron production in tokamaks, neutron emission and fusion power gain from JET and TFTR (the largest present-day tokamaks), and D-T neutron production from burnup of D-D tritons. This paper also discusses the prospects for future tokamak neutron production and potential applications of tokamak neutron sources.

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Confinement of Fusion-Produced Tritium in the Princeton Large Torus

Cited by 40 publications

References 6 publications

Burn-up of fusion-produced tritons and³He ions in PLT and PDX

Burn-up of fusion-produced tritons and³He ions in PLT and PDX

Fusion gamma diagnostics for D-T and D-/sup 3/He plasmas

The Tokamak as a Neutron Source

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Confinement of Fusion-Produced Tritium in the Princeton Large Torus

Cited by 40 publications

References 6 publications

Burn-up of fusion-produced tritons and3He ions in PLT and PDX

Burn-up of fusion-produced tritons and3He ions in PLT and PDX

Fusion gamma diagnostics for D-T and D-/sup 3/He plasmas

The Tokamak as a Neutron Source

Contact Info

Product

Resources

About

Burn-up of fusion-produced tritons and³He ions in PLT and PDX

Burn-up of fusion-produced tritons and³He ions in PLT and PDX