Status of muon catalysis of nuclear fusion reactions

Men’shikov, L. I.; Somov, L.N.

doi:10.3367/ufnr.0160.199008b.0047

Cited by 23 publications

(10 citation statements)

References 43 publications

(33 reference statements)

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“…Furthermore, the value of released energy must be close (and even very close) to the excitation energy of the six-body quasi-molecular cluster [d(dtµ)]e 2 mentioned above [1]. This means that numerical values from Eqs.…”

Section: Discussionmentioning

confidence: 87%

“…The main problem here is to avoid possible ionization, i.e., emission of the free electron from the arising quasi-molecular system. In general, formation of the six-body molecular cluster d(dtµ)e 2 (or two-center quasi-molecule dXe 2 , where X = (dtµ), for short) can proceed in the two following ways (for more details, see, e.g., [1]):…”

Section: Discussionmentioning

confidence: 99%

“…This means that numerical values from Eqs. (10) and (11) have to be approximately equal to the excitation energies of some vibrational and rotational energy levels in the two-center (quasi-adiabatic) molecular cluster d(dtµ)e 2 (more details can be found in [1]).…”

Section: Discussionmentioning

confidence: 99%

“…In this communication we report a number of new results of highly accurate computations of the weakly-bound (1,1)-states (or excited P * (L = 1)−states) in the three-body ddµ and dtµ muonic ions. Some time ago these two weakly-bound states were of great interest for the development of the 'resonance' approach to the muon-catalized nuclear fusion (see, e.g., [1]). On the other hand, these two states can be considered as ideal examples of very weaklybound three-body Coulomb systems.…”

Section: Introductionmentioning

confidence: 99%

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On the weakly-bound (1,1)-states in the three-body $d d μ$ and $d t μ$ muonic ions

Frolov

2018

Preprint

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The both total and binding energies of the (1,1)-states in the weakly-bound three-body muonic ddµ and dtµ ions are determined to high numerical accuracy. The binding energy of the (1,1)-state in the muonic dtµ ion is evaluated as ε(dtµ) = -0.66033003831(30) eV , while for the same state in the muonic ddµ ion we have found that ε(ddµ) = -1.9749806166970(30) eV . These energies are the most accurate numerical values obtained for these systems and they are sufficient for all current and future experimental needs.

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Section: Discussionmentioning

confidence: 87%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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On the weakly-bound (1,1)-states in the three-body $d d μ$ and $d t μ$ muonic ions

Frolov

2018

Preprint

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“…Systems based on magnetic confinement of plasma (tokamaks) [11,12], laser thermonuclear fusion [13], muon catalysis [14,15], gas-dynamic plasma traps [16], and so on have been proposed as external sources of neutrons. However, it is much more difficult to prove the safety of the storage of longer-lived radiologically toxic nuclei, for example, 129I (T1/2 -1.5.107 yr) and 237Np (T1/2 -2.106 yr).…”

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confidence: 99%

Cascade subcritical enhanced-safety reactor

Alekseev¹,

Ignat’ev²,

Kolyaskin³

et al. 1995

At Energy

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Specialists are now convinced that reliable storage of radioactive wastes with half-lives of T1/2 -30 yr, such as, 137Cs and 9~ produced in the nuclear power production is possible. However, it is much more difficult to prove the safety of the storage of longer-lived radiologically toxic nuclei, for example, 129I (T1/2 -1.5.107 yr) and 237Np (T1/2 -2.106 yr). This is why specialists return again and again to the idea of transmutation of such nuclei into short-lived nuclei. This problem will become more acute in the future, since the amount of wastes produced in nuclear power production worldwide is still far from equilibrium. It is also obvious that until comparative investigations of these approaches are made, it Will be impossible to make a final choice of the best approach or to determine whether or not any advantage is gained by combining different approaches.There are many technological and economic limitations that make it impossible to burn up in standard reactors with a solid-fuel core all nuclear wastes that cannot be stored. For this reason, a new type of reactor is required to switch to a closed fuel cycle: a reactor whose main properties are the ability to burn upall wastes, the possibility of flexible control of the nuclide composition, and enhanced safety. The existence of such a reactor will give the closed fuel cycle the required efficiency and flexibility.From our point of view, one such reactor is a subcritical liquid-salt reactor that is replenished by an external neutron source [1-10]. Its positive qualities are the possibility of obtaining a tow quantity of fission fragments in the core, which makes it possible to decrease substantially the residual heat release, and the possibility of removing heat by natural circulation of fused salt and a high negative temperature coefficient of the reactivity. These and omer qualities of the reactor eliminate accidents associated with the disruption of heat removal.The motives for studying a subcritical reactor are obvious: adequate subcriticality eliminates reactivityaccident and after the external neutron source is switched off the reactor stops within -10 -3 sec, i.e. the external source is an additional instantaneous means of control. Systems based on magnetic confinement of plasma (tokamaks) [11,12], laser thermonuclear fusion [13], muon catalysis [14,15], gas-dynamic plasma traps [16], and so on have been proposed as external sources of neutrons. At the present time the possibility of using as such sources accelerators which accelerate protons up to -1 GeV are being actively discussed [17][18][19].Our objectives in the present paper, which is a continuation of previous investigations [6][7][8][9][10], are as follows: selection of an optimal scheme for a safe subcritical reactor, which would make it possible to achieve high neutron multiplication while at the same time eliminating reactivity accidents, to decrease substantially the intensity of the external neutron source and thereby to eliminate the main drawbacks of the standard proton-beam schemes...

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