Zobrazeno 1 - 10
of 39
pro vyhledávání: '"G. S. Popeko"'
Autor:
A. V. Daniel, A. V. Ramayya, C. J. Lister, J. H. Hamilton, J. Kliman, D. Seweryniak, A. S. Fomichev, Sh. Zhu, J. D. Cole, J. O. Rasmussen, J. K. Hwang, J. C. Batchelder, G. M. Ter-Akopian, A. M. Rodin, S. J. Zhu, G. S. Popeko, R. V. F. Janssens, M. P. Carpenter, K. Li, L. Chaturvedi, Yu. Ts. Oganessian, D. Fong, L. Krupa, W. C. Ma, C. T. Goodin
Publikováno v:
Physics of Atomic Nuclei. 69:1405-1408
A new experiment devoted to the fission of 252Cf is described. It continued a series of our experiments based on correlation measurements of γ rays emitted by fission fragment pairs. The measurements of γ-γ and γ-γ-γ coincidences were done at G
Autor:
Marian Jandel, W. C. Ma, I. Y. Lee, C. T. Goodin, S. C. Wu, J. O. Rasmussen, K. Li, A. S. Fomichev, L. Krupa, J. H. Hamilton, J. D. Cole, G. M. Ter-Akopian, A. V. Daniel, Y. X. Luo, D. Fong, J. K. Hwang, Raul Donangelo, J. Kliman, M. A. Stoyer, G. S. Popeko, A. M. Rodin, Yu. Ts. Oganessian, A. V. Ramayya, J. Kormicki
Publikováno v:
Physics of Atomic Nuclei. 69:1161-1167
The hot bimodal fission of 252Cf is reexamined with new high-statistics data. We constructed a γ-γ-γ coincidence cube for binary fission and LCP-gated γ-γ matrix for ternary fission. By identifying the secondary fission fragments from their γ-r
Autor:
A. V. Ramayya, Y. X. Luo, A. O. Macchiavelli, J. K. Hwang, Raul Donangelo, Yu. Ts. Oganessian, J. O. Rasmussen, J. D. Cole, A. V. Daniel, D. Fong, J. Kormicki, M. A. Stoyer, G. M. Ter-Akopian, G. S. Popeko, M. Jandel, M. Morhac, L. Krupa, J. Kliman, A. M. Rodin, P. M. Gore, A. S. Fomichev, J. H. Hamilton
Publikováno v:
The European Physical Journal A. 24:373-378
For the first time, average angular momenta of the ternary fission fragments 100, 102Zr, 106Mo, 144, 146Ba and 138, 140, 142Xe from the α-accompanied fission of 252Cf were obtained from relative intensities of prompt γ-ray transitions with the use
Autor:
A. V. Ramayya, D. Fong, J. D. Cole, P. M. Gore, J. Kormicki, Walter Greiner, A. M. Rodin, A. O. Macchiavelli, L. Krupa, A. V. Daniel, I. Y. Lee, G. S. Popeko, J. O. Rasmussen, J. Kliman, G. M. Ter-Akopian, S. C. Wu, Yu. Ts. Oganessian, M. A. Stoyer, J. H. Hamilton, Marian Jandel, A. S. Fomichev, P. Fallon, J. K. Hwang, Raul Donangelo
Publikováno v:
Physics of Atomic Nuclei. 67:1860-1865
Ternary fission of 252Cf was studied at Gammasphere using eight ΔE×E particle telescopes. Helium, beryllium, boron, and carbon light charged particles (LCPs) emitted with kinetic energy more than 9, 21, 26, and 32 MeV, respectively, were identified
Autor:
L. Krupa, A. V. Ramayya, D. Fong, J. K. Hwang, Raul Donangelo, Yu. Ts. Oganessian, Y. X. Luo, A. O. Macchiavelli, J. Kliman, A. V. Daniel, P. M. Gore, M. Morhac, J. D. Cole, J. O. Rasmussen, A. S. Fomichev, J. H. Hamilton, G. M. Ter Akopian, Marian Jandel, M. A. Stoyer, G. S. Popeko, J. Kormicki, A. M. Rodin
Publikováno v:
Journal of Physics G: Nuclear and Particle Physics. 28:2893-2905
From multiparameter data obtained at Lawrence Berkeley National Laboratory, the integral characteristics of the prompt γ-ray emission were extracted for tripartition of 252Cf with He, Be and C being the third light charged particle. We used multifol
Autor:
L. Krupa, X. Q. Zhang, W. C. Ma, J. O. Rasmussen, S.C. Wu, J. K. Hwang, G. S. Popeko, Yu. Ts. Oganessian, A. V. Daniel, C. J. Beyer, J. D. Cole, A. M. Rodin, J. Kliman, R. V. F. Janssens, M. Jandel, R. Donangelo, G. M. Ter-Akopian, J. Kormicki, G. M. Chubarian, R. B. Piercey, Walter Greiner, D. Seweryniak, A. V. Ramayya, A. S. Fomichev, Joseph H. Hamilton
Publikováno v:
Physics of Atomic Nuclei. 65:645-652
The spontaneous fission (SF) of 252Cf has been studied via γ-γ-γ coincidence and light charged particle—γ-γ coincidence with Gammasphere. The yields of correlated Mo-Ba pairs in binary fission with 0–10 neutron emission have been remeasured
Autor:
G. S. Popeko, A. V. Ramayya, G. M. Ter-Akopian, Yu. Ts. Oganessian, A. Florescu, A. V. Daniel, J. D. Cole, A. Sandulescu, J. H. Hamilton, Walter Greiner, J. K. Hwang
Publikováno v:
Physical Review Letters. 81:947-950
The emission of {sup 10}Be in ternary cold neutronless spontaneous fission of {sup 252}Cf is observed with the Gammasphere consisting of 72 detectors. The {gamma} ray corresponding to the decay of the first 2{sup +} state in {sup 10}Be is observed in
Autor:
D. Shi, B. R. S. Babu, M. Morhac, J. K. Deng, E. F. Jones, J. D. Cole, F. K. McGowan, A. V. Ramayya, G. M. Ter-Akopian, K. Butler-Moore, A. V. Daniel, G. S. Popeko, J. H. Hamilton, W. C. Ma, Yu. Ts. Oganessian, Noah R. Johnson, R. Aryaeinejad, J. Kormicki, Q. H. Lu, I. Y. Lee, J. Kliman
Publikováno v:
Physical Review C. 55:1146-1161
Independent yields of 139 individual secondary (appearing after neutron evaporation) fragment pairs of five different charge splits ${(Z}_{L}{/Z}_{H}=$46/52, 44/54, 42/56, 40/58, and 38/60) have been experimentally measured by detecting the coinciden
Autor:
R. Aryaeinejad, A. V. Ramayya, G. M. Ter-Akopian, F. K. McGowan, N. R. Johnson, G. S. Popeko, J. K. Deng, Witold Nazarewicz, W. C. Ma, J. X. Saladin, A. V. Daniel, B. R. S. Babu, K. Butler-Moore, J. Kormicki, I. Y. Lee, Yu. Ts. Oganessian, J. D. Cole, J. H. Hamilton, M. Morhac, J. Kliman, D. Shi, Q. H. Lu, S. Ćwiok
Publikováno v:
Physical Review Letters. 77:32-35
From {gamma}-ray coincidence studies following spontaneous fission of {sup 252}Cf, direct measurements of yields and neutron multiplicities were made for Sr-Nd, Zr-Ce, Mo-Ba, Ru-Xe, and Pd-Te correlated pairs. A strong enhancement of the 7-10 neutron
Autor:
D. Shi, Q. H. Lu, J. Kliman, G. M. Ter-Akopian, J. H. Hamilton, F. K. McGowan, V. Polhorsky, B. R. S. Babu, J. K. Deng, J. D. Cole, Walter Greiner, A. V. Ramayya, L. K. Peker, G. S. Popeko, K. Butler-Moore, Yu. Ts. Oganessian, A. V. Daniel, Noah R. Johnson, Meng Wang, I. Y. Lee, J. Kormicki, W. C. Ma, A. Sandulescu, R. Aryaeinejad, S. J. Zhu, M. Morhac
Publikováno v:
Physics Reports. 264:215-231
New insights into the fission process and the structure of neutron-rich nuclei have been gained by measuring γ-γ and γ-γ-γ coincidences of the prompt γ-rays following the spontaneous fission of 252Cf. The data were taken with the Compton Suppre