Cluster-impact fusion

Beuhler, R. J.; Friedlander, Gérard; Friedman, L.

doi:10.1103/physrevlett.63.1292

Cited by 164 publications

(53 citation statements)

References 8 publications

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“…In their model the fusion rate is proportional to I ~dEe -E/Eo e -A/ ./E 0 where they assume E 0 = 500 ev, and A= 31.28 kevl/ 2 [1]. However, Echenique et al are careful to note the sensitivity of the fusion rate to the value of Ea.…”

Section: Introductionmentioning

confidence: 99%

“…Since such a high fusion rate would require an unrealistically high fusion cross section for an uncompressed system, they have suggested that the incoming clusters create shock waves that result in significant compression of the cluster and target material [ 1] .…”

Section: Introductionmentioning

confidence: 99%

“…Recentlyp the Brookhaven group has used (D 2 0) 0 -H+ clusters with 25 S n S 1300 and energies up to 325 keV to bombard TiD2 targets in an attempt to initiate D-D fusion [1].…”

Section: Introductionmentioning

confidence: 99%

“…The energy properties of the early collision cascade were of particular interest because they might account for the high fusion rate seen in [1]. The Cu-Cu system was chosen for th~s initial investigation because well established two-body potentials are available for this system [9], along with extensive experimental sputtering data for a wide range of incident atomic and molecular ions [10] in the energy range of interest.…”

Section: Introductionmentioning

confidence: 99%

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Molecular Dynamics Simulations of Cluster Impacts on Metallic Targets

Shapiro

Tombrello

1990

MRS Proc.

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A modified version of the multiple-interaction code SPUT2 has been used to simulate impacts of 63-atom Cu clusters on six-layer Cu targets.Simulations were carried out with cutoff times of 100 and 500 fs for an incident cluster energy of 63 keV (1 keV/atom).Significant enhancements were observed in the maximum potential and kinetic energies achieved in the early phase of the collision cascade.Some hard collisions yielded atoms with potential energies as high as 92 5 eV (in the CM frame) This is almost twice the energy allowed in an isolated two-body collision.The number of hard collisions per time-step vs potential energy is well-fitted with a decaying exponential, allowing extrapolation to higher energies.These results together with similar results for Al clusters impacting Au targets suggest that non-linear collisional effects cannot explain the high D-D fusion rates seen in Beuhler, Friedlander, and Friedman's recent experiment [l].

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…Recentlyp the Brookhaven group has used (D 2 0) 0 -H+ clusters with 25 S n S 1300 and energies up to 325 keV to bombard TiD2 targets in an attempt to initiate D-D fusion [1].…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Molecular Dynamics Simulations of Cluster Impacts on Metallic Targets

Shapiro

Tombrello

1990

MRS Proc.

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“…Since then, it is established that the cluster energy-loss is different from the sum of energy losses of its separated components. An increased energy transfer due a cluster may even be used in inertial nuclear fusion processes [3,4].…”

Section: Introductionmentioning

confidence: 99%

Impact-parameter dependence of the electronic energy loss of fast cluster projectiles

Fadanelli¹,

Grande²,

Schiwietz³

2005

Nuclear Instruments and Methods in Physics Research Section B:

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Electronic energy loss of molecular clusters as a function of impact-parameter is less understood than atomic energy loss. Vicinage effects due to mutual interference between cluster fragments play a key role in the determination of the cluster electronic energy loss. In this work, we describe a molecular extension of the PCA (perturbative convolution approximation) energy-loss model, namely MPCA (molecular PCA), which yields remarkable agreement with first-order Born (SCA) results. The physical inputs of the model are the oscillators strengths of the target atoms and the projectile electron density. A very good agreement is obtained with time consuming full first-order calculations for bare incident molecular clusters for several angles between cluster axis and velocity direction.

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