Low-energy Li+d reactions with Li target in various phases

Yonemura, Hiroshi; Kasagi, J.; Honmo, M.; Ishikawa, Yoshimi; Wang, T.; Zhang, Y.

doi:10.1063/1.2338404

Cited by 4 publications

(13 citation statements)

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“…Analogous enhancements has been seen in fusion between accelerated deuterons on light nuclei in the target [13,14].…”

Section: Introductionsupporting

confidence: 59%

“…The total screening potential for lithium is ≈ (520 ± 190) eV against a prediction of about 71 eV [13,14];…”

Section: The Experimental Situation and Interpretation Of The Spreadmentioning

confidence: 90%

“…For instance, the values for liquid and solid lithium targets from Ref. [14] are 520 ± 190 eV and 310 ± 70 eV: the difference would naively be 210 ± 202 eV. But the uncertainty on the bare cross section cancels in the difference and the percentage error is much smaller, about 35%: for instance Fang at al.…”

Section: The Experimental Situation and Interpretation Of The Spreadmentioning

confidence: 98%

“…The specific value reported for lithium is ≈ (310 ± 70) eV [14]. 4) Kasagi has very recently found [17] anomalous energy spectra of the outgoing p and t in the reaction d (d, p) t in liquid Indium.…”

Section: The Experimental Situation and Interpretation Of The Spreadmentioning

confidence: 99%

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The role of correlation entropy in nuclear fusion in liquid lithium, indium and mercury

Coraddu

Lissia

Quarati

et al. 2014

J. Phys. G: Nucl. Part. Phys.

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Abstract. Nuclear fusion cross-sections considerably higher than corresponding theoretical predictions are observed in low-energy experiments with metal matrix targets and accelerated deuteron beams. The cross-section increment is significantly higher for liquid than for solid targets. We propose that the same two-body correlation entropy used in evaluating the metal melting entropy explains the large liquid-solid difference of the effective screening potential that parameterizes the cross-section increment. This approach is applied to the specific case of the 6 Li(d, α) 4 He reaction, whose measured screening potential liquid-solid difference is (235 ± 63) eV. Cross sections in the two metals with the highest two-body correlation entropy (In and Hg) has not been measured yet: increments of the cross sections in liquid relative to the ones in solid metals are estimated with the same procedure.

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“…Analogous enhancements has been seen in fusion between accelerated deuterons on light nuclei in the target [13,14].…”

Section: Introductionsupporting

confidence: 59%

“…The total screening potential for lithium is ≈ (520 ± 190) eV against a prediction of about 71 eV [13,14];…”

Section: The Experimental Situation and Interpretation Of The Spreadmentioning

confidence: 90%

Section: The Experimental Situation and Interpretation Of The Spreadmentioning

confidence: 98%

Section: The Experimental Situation and Interpretation Of The Spreadmentioning

confidence: 99%

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The role of correlation entropy in nuclear fusion in liquid lithium, indium and mercury

Coraddu

Lissia

Quarati

et al. 2014

J. Phys. G: Nucl. Part. Phys.

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“…We have developed a liquid Li target and performed preliminary tests for the 6 Li+d/ 7 Li+p reactions. [15][16][17] In liquid Li metal, the Li ions become mobile and can contribute to the screening in addition to the electrons. Thus, a much larger screening effect is expected to be observed.…”

Section: Introductionmentioning

confidence: 99%

Screening Potential of ⁶Li(d,α)⁴He and ⁷Li(p,α)⁴He Reactions in Liquid Lithium

et al. 2011

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In order to investigate the screening effect of a nuclear reaction in a liquid metal environment, thick-target yields of the 6 Li(d,) 4 He and 7 Li(p,) 4 He reactions were measured using a liquid Li target for incident energies between 22.5 and 70 keV. The modified SðEÞ factor [S Ã ðEÞ] for the liquid Li environment was deduced by dividing the measured yield by the energy integration of the penetration factor divided by the stopping power. It was shown that S Ã ðEÞ for the liquid environment is considerably larger than that for the atomic/molecular environment for both reactions. The difference in the screening energy between the two environments was deduced to be ÁU ¼ 235 AE 63 ( 6 Li+d) and 140 AE 82 eV ( 7 Li+p), although the screening energy for liquid Li has a large uncertainty with U liq $ 486{776 ( 6 Li+d) and 324-637 eV ( 7 Li+p) owing to the uncertainty of the astrophysical bare SðEÞ factors. This difference in the screening energy should be considered in such a way that, in liquid Li metal, conduction electrons and Li þ ions contribute to the screening in addition to bound electrons.

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