PRODUCING TRANSMUTATION ELEMENT ON MULTI-LAYERED <font>Pd</font> SAMPLE BY DEUTERIUM PERMEATION

Yamada, H.; Taniguchi, Setsuo; Ushirozawa, T.; Kurihara, Seiichi; Higashizawa, M.; Sawada, Hidetaka; Itagaki, M.; Odashima, Tsugikatsu

doi:10.1142/9789812772985_0021

Cited by 4 publications

(4 citation statements)

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“…The GPT-potential with the 1/r 2 -type gives the three-body bound states near at the three-body threshold which would be very close to the molecular states. There are some reports of the experimental results about the low temperature nuclear transition (LTNT) [22][23][24][25][26][27][28]. Unfortunately, it seems that a reasonable theoretical description for such reactions has not been given as of yet, since almost all of the traditional theories are based on the short range nuclear forces which could reach as far as 100 fm.…”

Section: Conclusion and Discussionmentioning

confidence: 99%

An Investigation of the Nuclear Reaction Near the Three-Body Break-up Threshold: As a Ultra Low Energy Nuclear Synthesis

Oryu

Watanabe

Hiratsuka³

et al. 2019

Few-Body Syst

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We investigate the possibility of lanthanum (La)-nucleus creation via the reaction Cs(2d, γ)La on the three-ion quasi-molecule CsD 2 in the CsD 2 Pd 12-cluster. In order to calculate d-Cs-d (or D-Cs-D) three-body bound states and wave functions, we adopt a very accurate three-body variational method with more than 80 figures. The CsD 2 and La binding energies and wave functions are obtained with an S-wave trial functions. The wave function overlap (WFO) value between the La nuclear excited state and the several CsD 2 quasi molecular modified states is calculated. It should be stressed that the WFO value is of critical importance for the existence of the electromagnetic transition in the Cs(2d, γ)La reaction. We found that the WFO value is very sensitive to the nuclear potential tail with a two-or three-body 1/r 2-type long range hadron potential, and gives a promising result for the reaction. The result is also followed by the three-body Faddeev calculation. This article belongs to the Topical Collection "Ludwig Faddeev Memorial Issue".

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Section: Conclusion and Discussionmentioning

confidence: 99%

An Investigation of the Nuclear Reaction Near the Three-Body Break-up Threshold: As a Ultra Low Energy Nuclear Synthesis

Oryu

Watanabe

Hiratsuka³

et al. 2019

Few-Body Syst

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“…If those transitions could occur, then the γ-ray with several MeV energies could be emitted. Many experimental attempts for the fusion probability are reported where unusual heat generation is announced in some instances [28][29][30][31][32][33][34][35], however such a high energy γ-ray was not measured.…”

Section: Conclusion and Discussionmentioning

confidence: 99%

Three-body CsD₂ calculation in Pd₁₂ cage and E2 transition in ultra-low energy nuclear reaction

Watanabe¹,

Hiratsuka²,

Takeda³

et al. 2022

J. Phys. Commun.

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The three-body energy levels of the 55 135 CsD2 quasi-molecule in a CsD2Pd12 cluster are calculated using the Cs-D, D-D, Cs-Pd and D-Pd repulsive Coulomb interactions with electronic effects, the central Woods-Saxon potential for the two-body nuclear interactions, and a nuclear three-body potential term. The calculation was performed for distances ranging from fermis to nanometers, in one pass, using 100-figure numerical precision, and for energies between the 57 139 La ground state (-25.92 MeV) to the top of the Pd-barrier. The ion bases calculated results are adjusted to the electron bases chemical ones at the ground state and at the first excited state of CsD2Pd12. The possibility of 55 135 Cs(2D, γ) 57 139 La reaction is investigated for the E2 transition between J π = 7/2+ of 55 135 CsD2 and 7/2+ of the 57 139 La ground state.

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“…3) Few following experiments performed at other laboratories, however, have successfully confirmed their results. [5][6][7][8][9][10][11][12][13][14] One of the difficulties in reproducing the results of Iwamura et al may be that the amounts of the transmuted elements are too small to be detected by elemental analysis such as X-ray photoelectron spectroscopy (XPS), which has often been used to measure the amount of a transmuted element. 7,9,11) Another difficulty has been to distinguish the small amount of transmutation product from chemical contaminations.…”

Section: Introductionmentioning

confidence: 99%

“…7,9,11) Another difficulty has been to distinguish the small amount of transmutation product from chemical contaminations. 5,6,8,10,[12][13][14] In this work, we studied the nuclear transmutation of Cs into Pr using inductively coupled plasma mass spectrometry (ICP-MS) analysis and X-ray fluorescence (XRF) spectroscopy. ICP-MS enabled us to measure amounts of Pr as small as $1 Â 10 10 cm À2 .…”

Section: Introductionmentioning

confidence: 99%

Inductively Coupled Plasma Mass Spectrometry Study on the Increase in the Amount of Pr Atoms for Cs-Ion-Implanted Pd/CaO Multilayer Complex with Deuterium Permeation

Hioki

Takahashi

Kosaka

et al. 2013

Jpn. J. Appl. Phys.

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To investigate the nuclear transmutation of Cs into Pr reported in this journal by Iwamura and coworkers, we have measured the amount of Pr atoms in the range as low as ∼1×1010 cm-2 using inductively coupled plasma mass spectrometry for Cs-ion-implanted Pd/CaO multilayer complexes before and after deuterium permeation. The amount of Pr was initially at most 2.0×1011 cm-2 and it increased up to 1.6×1012 cm-2 after deuterium permeation. The increase in the amount of Pr could be explained neither by deuterium permeation-stimulated segregation of Pr impurities nor by external contamination from the experimental environment during the permeation. No increase in Pr was observed for permeation with hydrogen. These findings suggest that the observed increase in Pr with deuterium permeation can be attributed to a nuclear origin, as reported by Iwamura and coworkers, although the amount of the increase in Pr is two orders of magnitude less than that reported by them.

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PRODUCING TRANSMUTATION ELEMENT ON MULTI-LAYERED Pd SAMPLE BY DEUTERIUM PERMEATION

Cited by 4 publications

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An Investigation of the Nuclear Reaction Near the Three-Body Break-up Threshold: As a Ultra Low Energy Nuclear Synthesis

An Investigation of the Nuclear Reaction Near the Three-Body Break-up Threshold: As a Ultra Low Energy Nuclear Synthesis

Three-body CsD₂ calculation in Pd₁₂ cage and E2 transition in ultra-low energy nuclear reaction

Inductively Coupled Plasma Mass Spectrometry Study on the Increase in the Amount of Pr Atoms for Cs-Ion-Implanted Pd/CaO Multilayer Complex with Deuterium Permeation

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PRODUCING TRANSMUTATION ELEMENT ON MULTI-LAYERED Pd SAMPLE BY DEUTERIUM PERMEATION

Cited by 4 publications

References 0 publications

An Investigation of the Nuclear Reaction Near the Three-Body Break-up Threshold: As a Ultra Low Energy Nuclear Synthesis

An Investigation of the Nuclear Reaction Near the Three-Body Break-up Threshold: As a Ultra Low Energy Nuclear Synthesis

Three-body CsD2 calculation in Pd12 cage and E2 transition in ultra-low energy nuclear reaction

Inductively Coupled Plasma Mass Spectrometry Study on the Increase in the Amount of Pr Atoms for Cs-Ion-Implanted Pd/CaO Multilayer Complex with Deuterium Permeation

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Three-body CsD₂ calculation in Pd₁₂ cage and E2 transition in ultra-low energy nuclear reaction