Towards saturation of the electron-capture delayed fission probability: The new isotopes 240Es and 236Bk
The new neutron-deficient nuclei 240Es and 236Bk were synthesised at the gas-filled recoil separator RITU. They were identified by their radioactive decay chains starting from 240Es produced in the fusion–evaporation reaction 209Bi(34S,3n)240Es. Half-lives of 6(2)s and 22−6+13s were obtained for 240...
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Elsevier
2017-01-01
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| Series: | Physics Letters B |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S0370269316307018 |
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| author | J. Konki J. Khuyagbaatar J. Uusitalo P.T. Greenlees K. Auranen H. Badran M. Block R. Briselet D.M. Cox M. Dasgupta A. Di Nitto Ch.E. Düllmann T. Grahn K. Hauschild A. Herzán R.-D. Herzberg F.P. Heßberger D.J. Hinde R. Julin S. Juutinen E. Jäger B. Kindler J. Krier M. Leino B. Lommel A. Lopez-Martens D.H. Luong M. Mallaburn K. Nishio J. Pakarinen P. Papadakis J. Partanen P. Peura P. Rahkila K. Rezynkina P. Ruotsalainen M. Sandzelius J. Sarén C. Scholey J. Sorri S. Stolze B. Sulignano Ch. Theisen A. Ward A. Yakushev V. Yakusheva |
| author_facet | J. Konki J. Khuyagbaatar J. Uusitalo P.T. Greenlees K. Auranen H. Badran M. Block R. Briselet D.M. Cox M. Dasgupta A. Di Nitto Ch.E. Düllmann T. Grahn K. Hauschild A. Herzán R.-D. Herzberg F.P. Heßberger D.J. Hinde R. Julin S. Juutinen E. Jäger B. Kindler J. Krier M. Leino B. Lommel A. Lopez-Martens D.H. Luong M. Mallaburn K. Nishio J. Pakarinen P. Papadakis J. Partanen P. Peura P. Rahkila K. Rezynkina P. Ruotsalainen M. Sandzelius J. Sarén C. Scholey J. Sorri S. Stolze B. Sulignano Ch. Theisen A. Ward A. Yakushev V. Yakusheva |
| author_sort | J. Konki |
| collection | DOAJ |
| description | The new neutron-deficient nuclei 240Es and 236Bk were synthesised at the gas-filled recoil separator RITU. They were identified by their radioactive decay chains starting from 240Es produced in the fusion–evaporation reaction 209Bi(34S,3n)240Es. Half-lives of 6(2)s and 22−6+13s were obtained for 240Es and 236Bk, respectively. Two groups of α particles with energies Eα=8.19(3)MeV and 8.09(3)MeV were unambiguously assigned to 240Es. Electron-capture delayed fission branches with probabilities of 0.16(6) and 0.04(2) were measured for 240Es and 236Bk, respectively. These new data show a continuation of the exponential increase of ECDF probabilities in more neutron-deficient isotopes. |
| first_indexed | 2024-12-20T22:07:29Z |
| format | Article |
| id | doaj.art-514015fe619c48df9cddcb6fc6c91cee |
| institution | Directory Open Access Journal |
| issn | 0370-2693 1873-2445 |
| language | English |
| last_indexed | 2024-12-20T22:07:29Z |
| publishDate | 2017-01-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Physics Letters B |
| spelling | doaj.art-514015fe619c48df9cddcb6fc6c91cee2022-12-21T19:25:15ZengElsevierPhysics Letters B0370-26931873-24452017-01-01764C26527010.1016/j.physletb.2016.11.038Towards saturation of the electron-capture delayed fission probability: The new isotopes 240Es and 236BkJ. Konki0J. Khuyagbaatar1J. Uusitalo2P.T. Greenlees3K. Auranen4H. Badran5M. Block6R. Briselet7D.M. Cox8M. Dasgupta9A. Di Nitto10Ch.E. Düllmann11T. Grahn12K. Hauschild13A. Herzán14R.-D. Herzberg15F.P. Heßberger16D.J. Hinde17R. Julin18S. Juutinen19E. Jäger20B. Kindler21J. Krier22M. Leino23B. Lommel24A. Lopez-Martens25D.H. Luong26M. Mallaburn27K. Nishio28J. Pakarinen29P. Papadakis30J. Partanen31P. Peura32P. Rahkila33K. Rezynkina34P. Ruotsalainen35M. Sandzelius36J. Sarén37C. Scholey38J. Sorri39S. Stolze40B. Sulignano41Ch. Theisen42A. Ward43A. Yakushev44V. Yakusheva45University of Jyvaskyla, Department of Physics, P.O. Box 35, FI-40014 Jyvaskyla, FinlandHelmholtz Institute Mainz, 55099 Mainz, GermanyUniversity of Jyvaskyla, Department of Physics, P.O. Box 35, FI-40014 Jyvaskyla, FinlandUniversity of Jyvaskyla, Department of Physics, P.O. Box 35, FI-40014 Jyvaskyla, FinlandUniversity of Jyvaskyla, Department of Physics, P.O. Box 35, FI-40014 Jyvaskyla, FinlandUniversity of Jyvaskyla, Department of Physics, P.O. Box 35, FI-40014 Jyvaskyla, FinlandHelmholtz Institute Mainz, 55099 Mainz, GermanyIRFU, CEA, Université Paris-Saclay, 91191 Gif-sur-Yvette, FranceDepartment of Physics, Oliver Lodge Laboratory, University of Liverpool, Liverpool L69 7ZE, UKResearch School of Physics and Engineering, Australian National University, Canberra, ACT 2601, AustraliaGSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, GermanyHelmholtz Institute Mainz, 55099 Mainz, GermanyUniversity of Jyvaskyla, Department of Physics, P.O. Box 35, FI-40014 Jyvaskyla, FinlandCSNSM, Université Paris Sud and CNRS-IN2P3, F-91405 Orsay Campus, FranceUniversity of Jyvaskyla, Department of Physics, P.O. Box 35, FI-40014 Jyvaskyla, FinlandDepartment of Physics, Oliver Lodge Laboratory, University of Liverpool, Liverpool L69 7ZE, UKGSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, GermanyResearch School of Physics and Engineering, Australian National University, Canberra, ACT 2601, AustraliaUniversity of Jyvaskyla, Department of Physics, P.O. Box 35, FI-40014 Jyvaskyla, FinlandUniversity of Jyvaskyla, Department of Physics, P.O. Box 35, FI-40014 Jyvaskyla, FinlandGSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, GermanyGSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, GermanyGSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, GermanyUniversity of Jyvaskyla, Department of Physics, P.O. Box 35, FI-40014 Jyvaskyla, FinlandGSI Helmholtzzentrum für Schwerionenforschung GmbH, 64291 Darmstadt, GermanyCSNSM, Université Paris Sud and CNRS-IN2P3, F-91405 Orsay Campus, FranceResearch School of Physics and Engineering, Australian National University, Canberra, ACT 2601, AustraliaSchool of Physics and Astronomy, The University of Manchester, Manchester M13 9PL, UKAdvanced Science Research Center, Japan Atomic Energy Agency, Tokai, Ibaraki 319-1195, JapanUniversity of Jyvaskyla, Department of Physics, P.O. Box 35, FI-40014 Jyvaskyla, FinlandUniversity of Jyvaskyla, Department of Physics, P.O. Box 35, FI-40014 Jyvaskyla, FinlandUniversity of Jyvaskyla, Department of Physics, P.O. Box 35, FI-40014 Jyvaskyla, FinlandUniversity of Jyvaskyla, Department of Physics, P.O. Box 35, FI-40014 Jyvaskyla, FinlandUniversity of Jyvaskyla, Department of Physics, P.O. Box 35, FI-40014 Jyvaskyla, FinlandCSNSM, Université Paris Sud and CNRS-IN2P3, F-91405 Orsay Campus, FranceUniversity of Jyvaskyla, Department of Physics, P.O. Box 35, FI-40014 Jyvaskyla, FinlandUniversity of Jyvaskyla, Department of Physics, P.O. Box 35, FI-40014 Jyvaskyla, FinlandUniversity of Jyvaskyla, Department of Physics, P.O. Box 35, FI-40014 Jyvaskyla, FinlandUniversity of Jyvaskyla, Department of Physics, P.O. Box 35, FI-40014 Jyvaskyla, FinlandUniversity of Jyvaskyla, Department of Physics, P.O. Box 35, FI-40014 Jyvaskyla, FinlandUniversity of Jyvaskyla, Department of Physics, P.O. Box 35, FI-40014 Jyvaskyla, FinlandIRFU, CEA, Université Paris-Saclay, 91191 Gif-sur-Yvette, FranceIRFU, CEA, Université Paris-Saclay, 91191 Gif-sur-Yvette, FranceDepartment of Physics, Oliver Lodge Laboratory, University of Liverpool, Liverpool L69 7ZE, UKHelmholtz Institute Mainz, 55099 Mainz, GermanyHelmholtz Institute Mainz, 55099 Mainz, GermanyThe new neutron-deficient nuclei 240Es and 236Bk were synthesised at the gas-filled recoil separator RITU. They were identified by their radioactive decay chains starting from 240Es produced in the fusion–evaporation reaction 209Bi(34S,3n)240Es. Half-lives of 6(2)s and 22−6+13s were obtained for 240Es and 236Bk, respectively. Two groups of α particles with energies Eα=8.19(3)MeV and 8.09(3)MeV were unambiguously assigned to 240Es. Electron-capture delayed fission branches with probabilities of 0.16(6) and 0.04(2) were measured for 240Es and 236Bk, respectively. These new data show a continuation of the exponential increase of ECDF probabilities in more neutron-deficient isotopes.http://www.sciencedirect.com/science/article/pii/S0370269316307018Isotopes with mass 236–240240Es236Bkα decayElectron-capture delayed fissionFusion–evaporation reactions |
| spellingShingle | J. Konki J. Khuyagbaatar J. Uusitalo P.T. Greenlees K. Auranen H. Badran M. Block R. Briselet D.M. Cox M. Dasgupta A. Di Nitto Ch.E. Düllmann T. Grahn K. Hauschild A. Herzán R.-D. Herzberg F.P. Heßberger D.J. Hinde R. Julin S. Juutinen E. Jäger B. Kindler J. Krier M. Leino B. Lommel A. Lopez-Martens D.H. Luong M. Mallaburn K. Nishio J. Pakarinen P. Papadakis J. Partanen P. Peura P. Rahkila K. Rezynkina P. Ruotsalainen M. Sandzelius J. Sarén C. Scholey J. Sorri S. Stolze B. Sulignano Ch. Theisen A. Ward A. Yakushev V. Yakusheva Towards saturation of the electron-capture delayed fission probability: The new isotopes 240Es and 236Bk Physics Letters B Isotopes with mass 236–240 240Es 236Bk α decay Electron-capture delayed fission Fusion–evaporation reactions |
| title | Towards saturation of the electron-capture delayed fission probability: The new isotopes 240Es and 236Bk |
| title_full | Towards saturation of the electron-capture delayed fission probability: The new isotopes 240Es and 236Bk |
| title_fullStr | Towards saturation of the electron-capture delayed fission probability: The new isotopes 240Es and 236Bk |
| title_full_unstemmed | Towards saturation of the electron-capture delayed fission probability: The new isotopes 240Es and 236Bk |
| title_short | Towards saturation of the electron-capture delayed fission probability: The new isotopes 240Es and 236Bk |
| title_sort | towards saturation of the electron capture delayed fission probability the new isotopes 240es and 236bk |
| topic | Isotopes with mass 236–240 240Es 236Bk α decay Electron-capture delayed fission Fusion–evaporation reactions |
| url | http://www.sciencedirect.com/science/article/pii/S0370269316307018 |
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