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Zhang, M. M.*; Tian, Y. L.*; Wang, Y. S.*; Zhang, Z. Y.*; Gan, Z. G.*; Yang, H. B.*; Huang, M. H.*; Ma, L.*; Yang, C. L.*; Wang, J. G.*; et al.
Physical Review C, 106(2), p.024305_1 - 024305_6, 2022/08
Times Cited Count:4 Percentile:46.68(Physics, Nuclear)Sun, M. D.*; Liu, Z.*; Huang, T. H.*; Zhang, W. Q.*; Andreyev, A. N.; Ding, B.*; Wang, J. G.*; Liu, X. Y.*; Lu, H. Y.*; Hou, D. S.*; et al.
Physics Letters B, 800, p.135096_1 - 135096_5, 2020/01
Times Cited Count:12 Percentile:74.96(Astronomy & Astrophysics)Berry, T. A.*; Podolyk, Zs.*; Carroll, R. J.*; Lic
, R.*; Grawe, H.*; Timofeyuk, N. K.*; Alexander, T.*; Andreyev, A. N.; Ansari, S.*; Borge, M. J. G.*; et al.
Physics Letters B, 793, p.271 - 275, 2019/06
Times Cited Count:6 Percentile:48.12(Astronomy & Astrophysics)Schuemann, J.*; McNamara, A. L.*; Warmenhoven, J. W.*; Henthorn, N. T.*; Kirkby, K.*; Merchant, M. J.*; Ingram, S.*; Paganetti, H.*; Held, K. D.*; Ramos-Mendez, J.*; et al.
Radiation Research, 191(1), p.76 - 93, 2019/01
Times Cited Count:57 Percentile:94.69(Biology)We propose a new Standard DNA Damage (SDD) data format to unify the interface between the simulation of damage induction in DNA and the biological modelling of DNA repair processes, and introduce the effect of the environment (molecular oxygen or other compounds) as a flexible parameter. Such a standard greatly facilitates inter-model comparisons, providing an ideal environment to tease out model assumptions and identify persistent, underlying mechanisms. Through inter-model comparisons, this unified standard has the potential to greatly advance our understanding of the underlying mechanisms of radiation-induced DNA damage and the resulting observable biological effects when radiation parameters and/or environmental conditions change.
Kristo, M. J.*; Williams, R.*; Gaffney, A. M.*; Kayzar-Boggs, T. M.*; Schorzman, K. C.*; Lagerkvist, P.*; Vesterlund, A.*; Ramebck, H.*; Nelwamondo, A. N.*; Kotze, D.*; et al.
Journal of Radioanalytical and Nuclear Chemistry, 315(2), p.425 - 434, 2018/02
Times Cited Count:16 Percentile:80.85(Chemistry, Analytical)In a recent international exercise, 10 international nuclear forensics laboratories successfully performed radiochronometry on three low enriched uranium oxide samples, providing 12 analytical results using three different parent-daughter pairs serving as independent chronometers. The vast majority of the results were consistent with one another and consistent with the known processing history of the materials. In general, for these particular samples, mass spectrometry gave more accurate and more precise analytical results than decay counting measurements. In addition, the concordance of the U-
Pa and
U-
Th chronometers confirmed the validity of the age dating assumptions, increasing confidence in the resulting conclusions.
Jentschel, M.*; Blanc, A.*; de France, G.*; Kster, U.*; Leoni, S.*; Mutti, P.*; Simpson, G.*; Soldner, T.*; Ur, C.*; Urban, W.*; et al.
Journal of Instrumentation (Internet), 12(11), p.P11003_1 - P11003_33, 2017/11
Times Cited Count:43 Percentile:85.09(Instruments & Instrumentation)Shand, C. M.*; Podolyk, Zs.*; G
rska, M.*; Doornenbal, P.*; Obertelli, A.*; Nowacki, F.*; Otsuka, T.*; Sieja, K.*; Tostevin, J. A.*; Tsunoda, T.*; et al.
Physics Letters B, 773, p.492 - 497, 2017/10
Times Cited Count:28 Percentile:87.49(Astronomy & Astrophysics)Sugawara, Masahiko*; Hayakawa, Takehito; Oshima, Masumi*; Toh, Yosuke; Osa, Akihiko; Matsuda, Makoto; Shizuma, Toshiyuki; Hatsukawa, Yuichi; Kusakari, Hideshige*; Morikawa, Tsuneyasu*; et al.
Physical Review C, 87(6), p.064319_1 - 064319_10, 2013/06
Times Cited Count:3 Percentile:25.78(Physics, Nuclear)High-spin states of Rh were studied through in-beam
-ray spectroscopy by using the reaction
Zn(
Cl,
2
). The upper part of the band based on the g
proton orbital was rearranged in fourparallel cascades. The negative-parity band with the configuration of
(g
)
[(d
(h
)]was extended up to
that is possibly a terminating state. The band based on the
proton orbital was observed up to
and its property was compared with those of neighboring odd-Z nuclei from the viewpoint of vibrational to rotational evolution along the band.
Sugawara, Masahiko*; Hayakawa, Takehito; Oshima, Masumi*; Toh, Yosuke; Osa, Akihiko; Matsuda, Makoto; Shizuma, Toshiyuki; Hatsukawa, Yuichi; Kusakari, Hideshige*; Morikawa, Tsuneyasu*; et al.
Physical Review C, 86(3), p.034326_1 - 034326_11, 2012/09
Times Cited Count:21 Percentile:69.62(Physics, Nuclear)High spin states of Pd have been studied through in-beam
-ray spectroscopy by using the reaction
Zn (
Cl, 1
3
). The band based on the
neutron orbital has been extended to higher-spin states, and the band based on the
neutron orbital has been somewhat revised. Many transitions decaying to these bands have been observed and consequently, several side bands have been established. Electric dipole transitions from the
band to the
band have been also observed. The structure of the
band was discussed from the viewpoint of "antimagnetic rotation" based on a semiclassical particle plus rotor model taking neutron alignments into account.
Steer, S. J.*; Podolyk, Z.*; Pietri, S.*; G
rska, M.*; Grawe, H.*; Maier, K.*; Regan, P. H.*; Rudolph, D.*; Garnsworthy, A. B.*; Hoischen, R.*; et al.
Physical Review C, 84(4), p.044313_1 - 044313_22, 2011/10
Times Cited Count:68 Percentile:94.81(Physics, Nuclear)Heavy neutron-rich nuclei were populated via the fragmentation of a E/A=1 GeV Pb beam. Secondary fragments were separated and identified and subsequently implanted in a passive stopper. By the detection of delayed
rays, isomeric decays associated with these nuclei have been identified. A total of 49 isomers were detected, with the majority of them observed for the first time. Possible level schemes are constructed and the structure of the nuclei discussed. To aid the interpretation, shell-model as well as BCS calculations were performed.
Podolyk, Zs.*; Steer, S. J.*; Pietri, S.*; Xu, F. R.*; Liu, H. J.*; Regan, P. H.*; Rudolph, D.*; Garnsworthy, A. B.*; Hoischen, R.*; G
rska, M.*; et al.
Physical Review C, 79(3), p.031305_1 - 031305_4, 2009/03
Times Cited Count:39 Percentile:87.54(Physics, Nuclear) rays de-exciting isomeric states in the neutron-rich nucleus
Os
have been observed following relativistic projectile fragmentation of a 1 GeV per nucleon
Pb beam. The ground-state band has properties compatible with oblate deformation. The evolution of the structure of Os isotopes characterized by sudden prolate-oblate shape change is discussed and contrasted with the smooth change known in the Pt chain.
Heinz, S.*; Comas, V.*; Heberger, F. P.*; Hofmann, S.*; Ackermann, D.*; Burkhard, H. G.*; Gan, Z.*; Heredia, J.*; Khuyagbaatar, J.*; Kindler, B.*; et al.
European Physical Journal A, 38(2), p.227 - 232, 2008/11
Times Cited Count:24 Percentile:77.52(Physics, Nuclear)Nishio, Katsuhisa; Hofmann, S.*; Ikezoe, Hiroshi; Heberger, F. P.*; Ackermann, D.*; Antalic, S.*; Comas, V. F.*; Gan, Z.*; Heinz, S.*; Heredia, J. A.*; et al.
Nuclear Physics A, 805(1-4), p.516 - 518, 2008/06
Garnsworthy, A. B.*; Regan, P. H.*; Cceres, L.*; Pietri, S.*; Sun, Y.*; Rudolph, D.*; G
rska, M.*; Podoly
k, Z.*; Steer, S. J.*; Hoischen, R.*; et al.
Physics Letters B, 660(4), p.326 - 330, 2008/02
Times Cited Count:25 Percentile:78.44(Astronomy & Astrophysics)The low-lying structures of the self-conjugate () nuclei
Nb and
Tc have been investigated using isomeric-decay spectroscopy following the projectile fragmentation of a
Ag beam. These represent the heaviest odd-odd
nuclei in which internal decays have been identified to date. The resulting level schemes shed light on the shape evolution along the
line between the doubly-magic systems
Ni and
Sn and support a preference for
states in
odd-odd nuclei at low excitation energies associated with a
neutron-proton pairing gap. Comparison with Projected Shell Model calculations suggests that the decay in
Nb may be interpreted as an isospin-changing
isomer.
Podolyk, Zs.*; Steer, S. J.*; Pietri, S.*; Werner-Malento, E.*; Regan, P. H.*; Rudolph, D.*; Garnsworthy, A. B.*; Hoischen, R.*; G
rska, M.*; Gerl, J.*; et al.
European Physical Journal; Special Topics, 150(1), p.165 - 168, 2007/11
Times Cited Count:11 Percentile:55.13(Physics, Multidisciplinary)Relativistic energy projectile fragmentation of Pb has been used to produce a range of exotic nuclei. The nuclei of interest were studied by detecting delayed
rays following the decay of isomeric states. Experimental information on the excited states of the neutron-rich
Pt N=126 nucleus, following internal decay of two isomeric states, was obtained for the first time. In addition, decays from the previously reported isomeric
and
states in
Tb and
Gd, respectively, have been observed. These isomeric decays represent the highest discrete states observed to date following a prejectile fragmentation reaction, and opens up the possibilty of doing "high-spin physics" using this technique.
Nishio, Katsuhisa; Hofmann, S.*; Ikezoe, Hiroshi; Heberger, F. P.*; Ackermann, D.*; Antalic, S.*; Comas, V. F.*; Gan, Z.*; Heinz, S.*; Heredia, J. A.*; et al.
Journal of Nuclear and Radiochemical Sciences, 8(2), p.73 - 78, 2007/10
Pietri, S.*; Regan, P. H.*; Podolyk, Zs.*; Rudolph, D.*; Steer, S. J.*; Garnsworthy, A. B.*; Werner-Malento, E.*; Hoischen, R.*; G
rska, M.*; Gerl, J.*; et al.
Nuclear Instruments and Methods in Physics Research B, 261(1-2), p.1079 - 1083, 2007/08
Times Cited Count:94 Percentile:98.24(Instruments & Instrumentation)The first results from the stopped beam RISING experimental campaign performed at the GSI laboratory in Darmstadt, Germany, are presented. RISING constitutes a major new experimental program in European nuclear structure physics research aimed at using relativistic energy (typically around 1 GeV per nucleon) projectile fragmentation reactions to populate nuclei with highly exotic proton-to-neutron ratios compared to the line of beta stability. In its high-efficiency stopped beam configuration, the RISING -ray spectrometer consists of 105 individual germanium crystals which view a focal plane in which the exotic nuclei are brought to rest. Here, decays from metastable states with half-lives in the nano to milliseconds range can be observed. Results of initial commissioning experiments are also shown and details of the planned future experimental program are given.
Hofmann, S.*; Ackermann, D.*; Antalic, S.*; Burkhard, H. G.*; Comas, V. F.*; Dressler, R.*; Gan, Z.*; Heinz, S.*; Heredia, J. A.*; Heberger, F. P.*; et al.
European Physical Journal A, 32(3), p.251 - 260, 2007/06
Times Cited Count:269 Percentile:99.67(Physics, Nuclear)Regan, P. H.*; Garnsworthy, A. B.*; Pietri, S.*; Caceres, L.*; Grska, M.*; Rudolph, D.*; Podoly
k, Zs.*; Steer, S. J.*; Hoischen, R.*; Gerl, J.*; et al.
Nuclear Physics A, 787(1), p.491c - 498c, 2007/05
Times Cited Count:43 Percentile:90.16(Physics, Nuclear)Relativistic energy projectile fragmentation of Pb has been used to produce neutron-rich nuclei with N
126. The nuclei of interest were studied by detecting delayed
rays following the decay of isomeric states. Experimental information on the excited states of the neutron-rich
Pt N=126 nucleus, following internal decay of two isomeric states, was obtained for the first time. Raw experimental data and shell-model calculations are presented.
Nishio, Katsuhisa; Hofmann, S.*; Heberger, F. P.*; Ackermann, D.*; Antalic, S.*; Comas, V. F.*; Gan, Z.*; Heinz, S.*; Heredia, J. A.*; Ikezoe, Hiroshi; et al.
AIP Conference Proceedings 891, p.71 - 79, 2007/03
Seaborgium isotopes were produced in the fusion reaction Si +
U as evaporation residues (ERs), and the cross sections were determined. The experiment was carried out at GSI in Darmstadt, Germany. At the center-of-mass energy of E
= 144 MeV, three
decay chains starting from
Sg were observed, and the corresponding ER cross section was determined to be 67 pb. At the sub-barrier energy of E
= 133 MeV, three spontaneous fission events of a new isotope
Sg were detected. The cross section was 10 pb. The half-life of
Sg was determined to be 120 ms. The ER cross sections were compared with a statistical model calculation. In the fusion process, the coupled channel calculation taking into account the prolate deformation of
U was adopted to determine the capture cross section. The calculated capture cross section agrees well with the fission cross section of
Si +
U obtained at the JAEA tandem accelerator. The measured cross section of
Sg at the sub-barrier energy is factor 10
larger than the calculation based on the one-dimensional model in the fusion process, showing the fusion enhancement caused by the deformation of
U. However, disagreement with the calculation suggests the presence of quasi-fission channel. At the above barrier energy of E
= 144 MeV, the measured cross section is well reproduced by the calculation. This means that the interaction of
Si at the equotorial side of
U has advantage on the fusion process.