Overview of the LIBRA Light Ion Beam Fusion Conceptual Design

Moses, G.A.; Kulcinski, G.L.; Bruggink, D.; Engelstad, Roxann L.; Lovell, Edward G.; Macfarlane, J. J.; Musicki, Z.; Peterson, R. R.; Sawan, M.E.; Sviatoslavsky, I.N.; Wittenberg, L.J.; Keßler, G.; Möllendorff, Ulrich von; Stein, Erwin; Cook, D.L.; Olson, R. E.; Smith, I.; Corcoran, Patrick; Nishimoto, H.; Fockler, J.

doi:10.13182/fst89-a39786

Cited by 12 publications

(5 citation statements)

References 6 publications

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“…The contribution of bound electrons is calculated using the Eq. (3). It is seen that temperatures of almost 20 eV are achieved in this experiment.…”

Section: Analysis and Resultssupporting

confidence: 50%

“…The feasibility of the ion beam driven inertial fusion as an alternative to the magnetically confined or laser driven fusion [1][2][3] has initiated research in different aspects of generation, propagation and coupling of ion beam energy to the target. The coupling of ion beam i.e its stopping power in the cold target is a long standing field of research.…”

Section: Introductionmentioning

confidence: 99%

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Determination of Proton Stopping Power in Hot Plasma at Kalif

Goel

Bluhm

1988

J. Phys. Colloques

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Résumé -Les premières expériences de ralentissement de faisceaux de protons issus d'une diode réflex à pincement (facilités KALIK au KFK, Karlsruhe) ont été effectuées et comparées aux prévisions théoriques. L'énergie maximum des protons vaut 1,5 MeV. La densité crête de puissance sur la cible est située entre 0,15 et 0,3 TW/cm 2 . On observe une augmentation d'un facteur 2,6 pour le ralentissement des protons dans le plasma produit, ramené à son équivalent en cible froide. Ces résultats sont analysés à l'aide du code cible KATACO. On observe un bon accord entre les mesures et les prévisions théoriques. La température du plasma produit dans la cible est estimée à 25 eV.Abstract -First stopping power experiments with proton beam from a pinch reflex diode at the Karlsruhe Light Ion Facility -KALIF -have been performed and compared with the results of theoretical predictions. The maximum proton energy in these experiments is 1.5 MeV. The peak power density on the target is between. 0.15 to 0.3 TW/sq.cm. An enhancement of proton stopping power up to a factor of 2.6 is observed. These results are analysed with the target code KATACO. There is a good agreement between theoretical prediction and experimental results. The analysis shows that plasma temperatures of about 25 eV are achieved at KALIF.

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“…The contribution of bound electrons is calculated using the Eq. (3). It is seen that temperatures of almost 20 eV are achieved in this experiment.…”

Section: Analysis and Resultssupporting

confidence: 50%

Section: Introductionmentioning

confidence: 99%

Determination of Proton Stopping Power in Hot Plasma at Kalif

Goel

Bluhm

1988

J. Phys. Colloques

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“…As opposed to early LIBRA calculations [10,11], the simulations we have done here prove that both argon and nitrogen are acceptable for creating high enough magnetic fields. One important fact leading to this result is that, by using a more accurate model, we have corrected the overestimations in early diffusion calculations regarding the radial radiative transfer in the channel.…”

Section: An Optimized Channelcontrasting

confidence: 60%

“…Watrous observed this expansion in the channel for argon and nitrogen gases. Later, this led Peterson to conclude that helium was the preferred cavity gas because it radiated much less than the higher-Z gases [10,11]. Here, we re-examine this issue and present what our radiation model predicts about the channel dynamics.…”

Section: Introductionmentioning

confidence: 87%

“…A nonlinear and self-consistent 2 ^-dimensional hybrid simulation by Mankofsky and Sudan [4] took into consideration the multidimensional effects, the kinetic nature of the beams,, and the effects of non-linearities and inhomogeneities on the unstable modes. Most of these studies focused on the feasibility of the plasma channels for light ion beam fusion; only Freeman et al [3], Peterson and Moses [10] and Moses et al [11] also studied optimized channels for several reactor designs.…”

Section: Introductionmentioning

confidence: 99%

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Z-pinch plasma channels for the LIBRA reactor design

Yaşar

Moses

1991

Nucl. Fusion

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A newly developed adaptive-grid finite difference scheme is applied to the simulations of Z-pinch plasma channels for the light ion beam reactor-Study LIBRA. Besides its powerful adaptation scheme to resolve the steep gradients in temperature, density, momentum and electrical resistivity, the one-dimensional radiation magnetohydrodynamics code developed by the authors accounts for the anisotropy of the radiation field in an optically thin plasma. Comparisons with previous studies by Freeman and co-workers indicate the usefulness of the new features in the study of plasma channels for light ion beam fusion. Applications of the new code to LIBRA indicate the feasibility of using argon and nitrogen for the channel plasma. These were ruled out in favour of helium by earlier calculations using a radiative diffusion model. The present calculations treat the thin plasma in the channel more accurately than the diffusion approximation, leading to conclusions different from the previous ones.

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