The Experts below are selected from a list of 159 Experts worldwide ranked by ideXlab platform
W J Teesdale - One of the best experts on this subject based on the ideXlab platform.
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double k shell ionization in the Electron Capture Decay of 55fe
Physical Review C, 1991Co-Authors: J L Campbell, J A Maxwell, W J TeesdaleAbstract:The probability per {ital K} Capture for double {ital K}-shell ionization in the Electron Capture Decay of {sup 55}Fe was obtained by fitting a model spectrum to the x-ray spectrum recorded to very high statistics in a high-resolution Si(Li) detector. The result, {ital P}{sub {ital K}{ital K}}=(1.3{plus minus}0.2){times}10{sup {minus}4}, confirms the trend wherein experimental data decrease smoothly with {ital Z}, and are intermediate between the theoretical predictions of Intemann and of Suzuki and Law. Corrections to some recently published {ital P}{sub {ital K}{ital K}} values reconcile them with this trend.
M Lindroos - One of the best experts on this subject based on the ideXlab platform.
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the β Electron Capture Decay of 73 kr
European Physical Journal A, 1999Co-Authors: Ch Miehe, Ph Dessagne, Ch Pujol, G Walter, B Jonson, M LindroosAbstract:The β+– Electron Capture Decay of 73Kr, produced at the ISOLDE CERN facility, has been studied by β-delayed proton and gamma emission. The established Decay scheme involves 15 up to now unreported gamma emitting levels in 73Br. The total proton branching ratio has been measured to be 0.0025 ± 0.0003. From this work, a spin and parity 3/2− is assigned to the 73Kr ground state, on the basis of the allowed β branch to the 73Br Jπ= 1/2− ground state and the feeding of the 5/2+ level located at 286 keV in 73Br.
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The β + -Electron Capture Decay of 73 Kr
European Physical Journal A, 1999Co-Authors: Ch Miehe, Ph Dessagne, Ch Pujol, G Walter, B Jonson, M LindroosAbstract:The β+– Electron Capture Decay of 73Kr, produced at the ISOLDE CERN facility, has been studied by β-delayed proton and gamma emission. The established Decay scheme involves 15 up to now unreported gamma emitting levels in 73Br. The total proton branching ratio has been measured to be 0.0025 ± 0.0003. From this work, a spin and parity 3/2− is assigned to the 73Kr ground state, on the basis of the allowed β branch to the 73Br Jπ= 1/2− ground state and the feeding of the 5/2+ level located at 286 keV in 73Br.
K Ohno - One of the best experts on this subject based on the ideXlab platform.
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sensitive Electron Capture Decay rate of 7be encapsulated in carbon nanotubes a density functional study
Chemical Physics Letters, 2013Co-Authors: Tsuguo Morisato, Riichi Kuwahara, K OhnoAbstract:Abstract The Electron Capture Decay rate of 7 Be encapsulated in carbon nanotubes (CNTs) is studied by using a first-principles approach. We calculate the Electron density at the Be nucleus position, which is proportional to the magnitude of the Decay rate. With decreasing the radius of the CNT, a drastic decrease following a slight increase in the Electron density is observed. The magnitude of the largest density in these complex nanostructures is nearly equal to the maximum value that has been reported previously in 7 Be@C 60 and 1.64% larger than that of the density at the Be nucleus embedded in the Be metal.
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enhanced Electron Capture Decay rate of 7be encapsulated in c60 cages
Physical Review Letters, 2004Co-Authors: Tomoaki Ohtsuki, Hidetaka Yuki, J Kasagi, Makoto Muto, K OhnoAbstract:The Decay rate of $^{\mathrm{7}}\mathrm{B}\mathrm{e}$ Electron Capture was measured in ${\mathrm{C}}_{60}$ and Be metal with a reference method. The half-life of $^{\mathrm{7}}\mathrm{B}\mathrm{e}$ endohedral ${\mathrm{C}}_{\mathrm{60}}$ ($^{\mathrm{7}}\mathrm{B}\mathrm{e}\mathrm{@}{\mathrm{C}}_{\mathrm{60}}$) and $^{\mathrm{7}}\mathrm{B}\mathrm{e}$ in Be metal (Be metal ($^{\mathrm{7}}\mathrm{B}\mathrm{e}$)) is found to be $52.68\ifmmode\pm\else\textpm\fi{}0.05$ and $53.12\ifmmode\pm\else\textpm\fi{}0.05$ days, respectively. This amounts to a $0.83%$ difference in Electron-Capture Decay half-life between $^{\mathrm{7}}\mathrm{B}\mathrm{e}@{\mathrm{C}}_{60}$ and Be metal ($^{\mathrm{7}}\mathrm{B}\mathrm{e}$). Our result is a reflection of the different Electron wave functions for $^{\mathrm{7}}\mathrm{B}\mathrm{e}@{\mathrm{C}}_{60}$ inside ${\mathrm{C}}_{\mathrm{60}}$ compared to the situation when $^{\mathrm{7}}\mathrm{B}\mathrm{e}$ is in a Be metal.
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Enhanced Electron-Capture Decay rate of7Be encapsulated in C60cages
Physical Review Letters, 2004Co-Authors: Tomoaki Ohtsuki, Hidetaka Yuki, J Kasagi, Makoto Muto, K OhnoAbstract:The Decay rate of 7Be Electron Capture was measured in C60 and Be metal with a reference method. The half-life of 7Be endohedral C60 ((7)Be@C(60)) and 7Be in Be metal (Be metal (7Be)) is found to be 52.68+/-0.05 and 53.12+/-0.05 days, respectively. This amounts to a 0.83% difference in Electron-Capture Decay half-life between (7)Be@C(60) and Be metal (7Be). Our result is a reflection of the different Electron wave functions for (7)Be@C(60) inside C60 compared to the situation when 7Be is in a Be metal.
J Suhonen - One of the best experts on this subject based on the ideXlab platform.
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Electron Capture Decay of in 116 and nuclear structure of double beta Decays
Physical Review C, 1998Co-Authors: M Bhattacharya, E B Norman, C. N. Davids, M. M. Hindi, Antonio Manuel Rodríguez García, C E Ortiz, N I Kaloskamis, O Civitarese, J SuhonenAbstract:Quasiparticle-random-phase-approximation (QRPA) calculations of double {beta} Decays have not been able to reproduce data in the A=100 system. We propose the A=116 system{emdash}because of its smaller deformation{emdash}as a simpler system to test QRPA calculations. We present results of two experiments we performed, which determine the Electron-Capture-Decay branch of {sup 116}In to be (2.27{plus_minus}0.63){times}10{sup {minus}2}{percent}, from which we deduce logft=4.39{sub {minus}0.15}{sup +0.10}. We present QRPA calculations and compare their predictions to experimental data. Finally we use these calculations to predict the 2{nu} double-{beta}-Decay rate of {sup 116}Cd to the ground and excited states of {sup 116}Sn. {copyright} {ital 1998} {ital The American Physical Society}
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possible detection of the double β Electron Capture Decay
Physical Review C, 1993Co-Authors: J SuhonenAbstract:The two-neutrino double [beta] Decay matrix elements of [sup 58]Ni, [sup 96]Ru, [sup 106]Cd, and [sup 136]Ce are calculated in the framework of the quasiparticle random phase approximation and the corresponding double [beta][sup +]/Electron-Capture (EC) Decay ([beta][sup +][beta][sup +]/[beta][sup +]EC/ECEC) half-lives are estimated. The calculated ground-state-to-ground-state half-lives range from 3.9[times]10[sup 23] to 6.4[times]10[sup 19] yr indicating that the double [beta][sup +]/EC Decay could, in principle, be detected using currently known experimental techniques.
J L Campbell - One of the best experts on this subject based on the ideXlab platform.
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double k shell ionization in the Electron Capture Decay of 55fe
Physical Review C, 1991Co-Authors: J L Campbell, J A Maxwell, W J TeesdaleAbstract:The probability per {ital K} Capture for double {ital K}-shell ionization in the Electron Capture Decay of {sup 55}Fe was obtained by fitting a model spectrum to the x-ray spectrum recorded to very high statistics in a high-resolution Si(Li) detector. The result, {ital P}{sub {ital K}{ital K}}=(1.3{plus minus}0.2){times}10{sup {minus}4}, confirms the trend wherein experimental data decrease smoothly with {ital Z}, and are intermediate between the theoretical predictions of Intemann and of Suzuki and Law. Corrections to some recently published {ital P}{sub {ital K}{ital K}} values reconcile them with this trend.