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Journal Articles

Search for elements 119 and 120

Khuyagbaatar, J.*; Yakushev, A.*; D$"u$llmann, Ch. E.*; Ackermann, D.*; Andersson, L.-L.*; Asai, Masato; Block, M.*; Boll, R. A.*; Brand, H.*; Cox, D. M.*; et al.

Physical Review C, 102(6), p.064602_1 - 064602_9, 2020/12

https://doi.org/10.1103/PhysRevC.102.064602
 Times Cited Count：43 Percentile：98.01(Physics, Nuclear)

A search for production of the superheavy elements with atomic numbers 119 and 120 was performed in the $$^{50}$$Ti+$$^{249}$$Bk and $$^{50}$$Ti+$$^{249}$$Cf fusion-evaporation reactions, respectively, at the gas-filled recoil separator TASCA. Over four months of irradiation, neither was detected at cross-section sensitivity levels of 65 and 200 fb, respectively. The non-observation of elements 119 and 120 is discussed within the concept of fusion-evaporation reactions including various theoretical predictions on the fission-barrier heights of superheavy nuclei in the region of the island of stability.

Journal Articles

Fusion reaction $$^{48}$$Ca+$$^{249}$$Bk leading to formation of the element Ts (Z=117)

Khuyagbaatar, J.*; Yakushev, A.*; D$"u$llmann, Ch. E.*; Ackermann, D.*; Andersson, L.-L.*; Asai, Masato; Block, M.*; Boll, R. A.*; Brand, H.*; Cox, D. M.*; et al.

Physical Review C, 99(5), p.054306_1 - 054306_16, 2019/05

AA2019-0039.pdf:5.03MB

https://doi.org/10.1103/PhysRevC.99.054306
 Times Cited Count：23 Percentile：90.91(Physics, Nuclear)

We have performed an experiment to synthesize the element 117 (Ts) with the $$^{48}$$Ca+$$^{249}$$Bk fusion reaction. Four $$alpha$$-decay chains attributed to the element 117 were observed. Two of them were long decay chains which can be assigned to the one originating from the $$alpha$$ decay of $$^{294}$$Ts. The other two were short decay chains which are consistent with the one originating from the $$alpha$$ decay of $$^{293}$$Ts. We have compared the present results with the literature data, and found that our present results mostly confirmed the literature data, leading to the firm confirmation of the synthesis of the element 117.

Journal Articles

$$^{48}$$Ca + $$^{249}$$Bk fusion reaction leading to element Z = 117; Long-lived $$alpha$$-decaying $$^{270}$$Db and discovery of $$^{266}$$Lr

Khuyagbaatar, J.*; Yakushev, A.*; D$"u$llmann, Ch. E.*; Ackermann, D.*; Andersson, L.-L.*; Asai, Masato; Block, M.*; Boll, R. A.*; Brand, H.*; Cox, D. M.*; et al.

Physical Review Letters, 112(17), p.172501_1 - 172501_5, 2014/05

https://doi.org/10.1103/PhysRevLett.112.172501
 Times Cited Count：208 Percentile：98.43(Physics, Multidisciplinary)

The superheavy element with atomic number 117 was produced in the $$^{48}$$Ca + $$^{249}$$Bk fusion reaction using the gas-filled recoil separator TASCA at GSI in Germany. This result verified the previous result of the discovery of new element 117 reported by Flerov Laboratory of Nuclear Reactions in Russia, which makes certain the synthesis and discovery of element 117 in human history. On the other hand, the last nucleus in the $$alpha$$ decay chain from the element 117 was assigned to be the unknown nucleus $$^{266}$$Lr instead of the previously reported $$^{270}$$Db, and $$^{270}$$Db was found to be the $$alpha$$-decaying nucleus with very long half-life.

Journal Articles

Post-irradiation SEM study of ZrC-based TRISO coatings from the PYCASSO experiments

Hania, R.*; M$'e$nard, G.*; Aihara, Jun; Ueta, Shohei; Knol, S.*; De Jong, A.*; Van den Berg, F.*; Van Staveren, T.*; De Groot, S.*

Proceedings of 6th International Topical Meeting on High Temperature Reactor Technology (HTR 2012) (USB Flash Drive), 5 Pages, 2012/10

The PYCASSO irradiation experiments have been conducted to determine the effect of irradiation at high temperature on the properties of various coating materials of the coated fuel particle. One part of PYCASSO is to evaluate the advanced barrier material ZrC. Pyrocarbon (PyC) / ZrC-coated ZrO$$_{2}$$ and Al$$_{2}$$O$$_{3}$$ particles fabricated by JAEA were irradiated by HFR at 900 $$^{circ}$$C and 1,100 $$^{circ}$$C, at the same flux level up to approximately 2 dpa. Samples of irradiated and unirradiated particles are under investigation using an electron microscope, with the aim to identify irradiation effects and the influence of the heat treatment after the fabrication on the ZrC microstructure. Preliminary results of this SEM study indicate that whereas the heat treatment at 1,800 $$^{circ}$$C prior to irradiation induces significant grain growth near the ZrC edges, embrittling the ZrC layer and weakening the iPyC-ZrC interface, irradiation has no noticeable effect on microstructure and coating strength.

Journal Articles

Excitation and decay of the isovector spin-flip giant monopole resonance via the $$^{208}$$Pb($$^{3}$$He,${it tp}$) reaction at 410 MeV

Zegers, R. G. T.*; Abend, H.*; Akimune, Hidetoshi*; Van den Berg, A. M.*; Fujimura, Hisako*; Fujita, Hirohiko*; Fujita, Yoshitaka*; Fujiwara, Mamoru; Gal$`e$s, S.*; Hara, Keigo*; et al.

Nuclear Physics A, 731, p.121 - 128, 2004/02

https://doi.org/10.1016/j.nuclphysa.2003.11.024
 Times Cited Count：11 Percentile：56.88(Physics, Nuclear)

no abstracts in English

Journal Articles

Investigation of IVGRs via the $$^{58}$$Ni(t,$$^{3}$$He)$$^{58}$$Co reaction

Guillot, J.*; Beaumel, D.*; Van den Berg, A. M.*; Brandenburg. S.*; Davids, B.*; Fortier, S.*; Fujiwara, Mamoru; Gal$`e$s, S.*; Harakeh, M. N.*; Hunyadi, M.*; et al.

Nuclear Physics A, 731, p.106 - 113, 2004/02

https://doi.org/10.1016/j.nuclphysa.2003.11.022
 Times Cited Count：4 Percentile：30.89(Physics, Nuclear)

no abstracts in English

Journal Articles

Neutron-skin thickness in neutron-rich isotopes

Krasznahorkay, A.*; Akimune, Hidetoshi*; Van den Berg, A. M.*; Blasi, N.*; Brandenburg. S.*; Csatl$'o$s, M.*; Fujiwara, Mamoru; Guly$'a$s, J.*; Harakeh, M. N.*; Hunyadi, M.*; et al.

Nuclear Physics A, 731, p.224 - 234, 2004/02

https://doi.org/10.1016/j.nuclphysa.2003.11.034
 Times Cited Count：71 Percentile：94.4(Physics, Nuclear)

no abstracts in English

Journal Articles

Excitation and decay of the Isovector giant monopole resonances via the $$^{208}$$Pb($$^{3}$$He,${it tp}$) reaction at 410 MeV

Zegers, R. G. T.; Abend, H.*; Akimune, Hidetoshi*; Van den Berg, A. M.*; Fujimura, Hisako*; Fujita, Hirohiko*; Fujita, Yoshitaka*; Fujiwara, Mamoru; Gal$`e$s, S.*; Hara, Keigo*; et al.

Physical Review Letters, 90(20), p.202501_1 - 202501_4, 2003/05

https://doi.org/10.1103/PhysRevLett.90.202501
 Times Cited Count：49 Percentile：85.01(Physics, Multidisciplinary)

no abstracts in English

Journal Articles

Observation of the isovector giant monopole resonances in the ($$^{3}$$He, t) reaction

Zegers, R. G. T.*; Van den Berg, A. M.*; Brandenburg. S.*; Fleurot, F. R. R.*; Fujiwara, Mamoru; Guillot, J.*; Hannen, V. M.*; Harakeh, M. N.*; Laurent, H.*; Van der Schaaf, K.*; et al.

Nuclear Physics A, 687(3-4), p.262c - 269c, 2001/05

no abstracts in English

Journal Articles

Recent progress toward high performance above the greenwald density limit in impurity seeded discharges in limiter and divertor tokamaks

Ongena, J.*; Budny, R.*; Dumortier, P.*; Jackson, G. L.*; Kubo, Hirotaka; Messiaen, A. M.*; Murakami, Masanori*; Strachan, J. D.*; Sydora, R.*; Tokar, M.*; et al.

Physics of Plasmas, 8(5), p.2188 - 2198, 2001/05

https://doi.org/10.1063/1.1364513
 Times Cited Count：49 Percentile：79.8(Physics, Fluids & Plasmas)

no abstracts in English

Journal Articles

Excitation of the isovector giant monopole resonances via the $$^{nat}$$Pb($$^{3}$$He, tp) reaction

Zegers, R. G. T.*; Van den Berg, A. M.*; Brandenburg. S.*; Fujiwara, Mamoru; Guillot, J.*; Harakeh, M. N.*; Laurent, H.*; Van der Werf, S. Y.*; Willis, A.*; Wilschut, H. W.*

Physical Review C, 63(3), p.034613_1 - 034613_11, 2001/03

https://doi.org/10.1103/PhysRevC.63.034613
 Times Cited Count：15 Percentile：66.93(Physics, Nuclear)

no abstracts in English

Journal Articles

Structure of the 11/2$$^{-}$$ analog state in $$^{91}$$Nb populated by the $$^{90}$$Zr($$alpha$$, t) reaction

Van der Molen, H. K. T.*; Akimune, Hidetoshi*; Van den Berg, A. M.*; Daito, Izuru*; Fujimura, Hisako*; Fujita, Yoshitaka*; Fujiwara, Mamoru; Harakeh, M. N.*; Ihara, F.*; Inomata, Toru*; et al.

Physics Letters B, 502(1-4), p.1 - 8, 2001/03

https://doi.org/10.1016/S0370-2693(01)00168-X
 Times Cited Count：3 Percentile：28.27(Astronomy & Astrophysics)

no abstracts in English

Journal Articles

Gamow-Teller strengths of the inverse beta transition $$^{176}$$Yb$$rightarrow$$$$^{176}$$Lu for spectroscopy of proton-proton and other sub-MeV solar neutrinos

Fujiwara, Mamoru; Akimune, Hidetoshi*; Van den Berg, A. M.*; Cribier, M.*; Daito, Izuru*; Ejiri, Hiroyasu*; Fujimura, Hisako*; Fujita, Yoshitaka*; Goodman, C. D.*; Hara, Keigo*; et al.

Physical Review Letters, 85(21), p.4442 - 4445, 2000/11

https://doi.org/10.1103/PhysRevLett.85.4442
 Times Cited Count：24 Percentile：73.99(Physics, Multidisciplinary)

no abstracts in English

Journal Articles

Search for isovector giant monopole resonances via the Pb($$^{3}$$He,tp) reaction

Zegers, R. G. T.; Van den Berg, A. M.*; Brandenburg. S.*; Fleurot, F. R. R.*; Fujiwara, Mamoru; Guillot, J.*; Hannen, V. M.*; Harakeh, M. N.*; Laurent, H.*; Van der Schaaf, K.*; et al.

Physical Review Letters, 84(17), p.3779 - 3782, 2000/04

https://doi.org/10.1103/PhysRevLett.84.3779
 Times Cited Count：15 Percentile：65.47(Physics, Multidisciplinary)

no abstracts in English

Journal Articles

Charge-exchange reactions with a secondary triton beam

Sherrill, B. M.*; Akimune, Hidetoshi; Austin, S. M.*; Bazin, D.*; Van den Berg, A. M.*; Berg, G. P. A.*; Caggiano, J.*; Daito, Izuru*; Fujimura, Hisako*; Fujita, Yoshitaka*; et al.

Nuclear Instruments and Methods in Physics Research A, 432(2-3), p.299 - 304, 1999/08

https://doi.org/10.1016/S0168-9002(99)00518-5
 Times Cited Count：39 Percentile：91.86(Instruments & Instrumentation)

no abstracts in English

15 (Records 1-15 displayed on this page)
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