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Journal Articles

Radioactive particles from a range of past nuclear events; Challenges posed by highly varied structure and composition

Johansen, M. P.*; Child, D. P.*; Collins, R.*; Cook, M.*; Davis, J.*; Hotchkis, M. A. C.*; Howard, D. L.*; Howell, N.*; Ikeda, Atsushi; Young, E.*

Science of the Total Environment, 842, p.156755_1 - 156755_11, 2022/10

https://doi.org/10.1016/j.scitotenv.2022.156755
 Times Cited Count：7 Percentile：39.68(Environmental Sciences)

Journal Articles

Radiation-induced effects on the extraction properties of hexa-$$n$$-octylnitrilo-triacetamide (HONTA) complexes of americium and europium

Toigawa, Tomohiro; Peterman, D. R.*; Meeker, D. S.*; Grimes, T. S.*; Zalupski, P. R.*; Mezyk, S. P.*; Cook, A. R.*; Yamashita, Shinichi*; Kumagai, Yuta; Matsumura, Tatsuro; et al.

Physical Chemistry Chemical Physics, 23(2), p.1343 - 1351, 2021/01

https://doi.org/10.1039/D0CP05720G
 Times Cited Count：23 Percentile：83.02(Chemistry, Physical)

The candidate An(III)/Ln(III) separation ligand hexa-$$n$$-octylnitrilo-triacetamide (HONTA) was irradiated under envisioned SELECT (Solvent Extraction from Liquid waste using Extractants of CHON-type for Transmutation) process conditions using a solvent test loop in conjunction with cobalt-60 gamma irradiation. We demonstrate that HONTA undergoes exponential decay with increasing gamma dose to produce a range of degradation products which have been identified and quantified by HPLC-ESI-MS/MS techniques. The combination of HONTA destruction and degradation product ingrowth, particularly dioctylamine, negatively impacts the extraction and back-extraction of both americium and europium ions. The loss of HONTA was attributed to its reaction with the solvent (${it n}$-dodecane) radical cation of ${it k}$(HONTA + R$$^{.+}$$) = (7.61 $$pm$$ 0.82) $$times$$ 10$$^{9}$$ M$$^{-1}$$ s$$^{-1}$$ obtained by pulse radiolysis techniques. However, when this ligand is bound to either americium or europium ions, the observed ${it n}$-dodecane radical cation kinetics increase by over an order of magnitude. This large reactivity increase to additional reaction pathways occurring upon metal-ion binding. Lastly nanosecond time-resolved measurements showed that both direct and indirect HONTA radiolysis yielded the short-lived ($$<$$100 ns) HONTA radical cation as well as a longer-lived ($$mu$$s) HONTA triplet excited state. These HONTA species are important precursors to the suite of HONTA degradation products observed.

Journal Articles

In-beam $$gamma$$-ray spectroscopy of $$^{35}$$Mg and $$^{33}$$Na

Gade, A.*; Basin, D.*; Brown, B. A.*; Campbell, C. M.*; Cook, J. M.*; Ettenauer, S.*; Glasmacher, T.*; Kemper, K. W.*; McDaniel, S.*; Obertelli, A.*; et al.

Physical Review C, 83(4), p.044305_1 - 044305_5, 2011/04

https://doi.org/10.1103/PhysRevC.83.044305
 Times Cited Count：22 Percentile：75.12(Physics, Nuclear)

no abstracts in English

Journal Articles

Two-proton knockout from $$^{32}$$Mg; Intruder amplitudes in $$^{30}$$Ne and implications for the binding of $$^{29,31}$$F

Fallon, P.*; Rodriguez-Vieitez, E.*; Macchiavelli, A. O.*; Gade, A.*; Tostevin, J. A.*; Adrich, P.*; Bazin, D.*; Bowen, M.*; Campbell, C. M.*; Clark, R. M.*; et al.

Physical Review C, 81(4), p.041302_1 - 041302_5, 2010/04

https://doi.org/10.1103/PhysRevC.81.041302
 Times Cited Count：42 Percentile：88.19(Physics, Nuclear)

no abstracts in English

Journal Articles

Intruder configurations in the A=33 isobars; $$^{33}$$Mg and $$^{33}$$Al

Tripathi, V.*; Tabor, S. L.*; Mantica, P. F.*; Utsuno, Yutaka; Bender, P.*; Cook, J.*; Hoffman, C. R.*; Lee, S.*; Otsuka, Takaharu*; Pereira, J.*; et al.

Physical Review Letters, 101(14), p.142504_1 - 142504_4, 2008/10

https://doi.org/10.1103/PhysRevLett.101.142504
 Times Cited Count：57 Percentile：86.85(Physics, Multidisciplinary)

no abstracts in English

Journal Articles

$$d_{5/2}$$ proton hole strength in neutron-rich $$^{43}$$P; Shell structure and nuclear shapes near $$N$$=28

Riley, L. A.*; Adrich, P.*; Baugher, T. R.*; Bazin, D.*; Brown, B. A.*; Cook, J. M.*; Cottle, P. D.*; Diget, C. A.*; Gade, A.*; Garland, D. A.*; et al.

Physical Review C, 78(1), p.011303_1 - 011303_5, 2008/07

https://doi.org/10.1103/PhysRevC.78.011303
 Times Cited Count：25 Percentile：77.90(Physics, Nuclear)

no abstracts in English

Journal Articles

Intermediate-energy Coulomb excitation of $$^{30}$$Na

Ettenauer, S.*; Zwahlen, H.*; Adrich, P.*; Bazin, D.*; Campbell, C. M.*; Cook, J. M.*; Davies, A. D.*; Dinca, D.-C.*; Gade, A.*; Glasmacher, T.*; et al.

Physical Review C, 78(1), p.017302_1 - 017302_4, 2008/07

https://doi.org/10.1103/PhysRevC.78.017302
 Times Cited Count：14 Percentile：63.65(Physics, Nuclear)

no abstracts in English

Journal Articles

Single-neutron knockout from intermediate energy beams of $$^{30,32}$$Mg; Mapping the transition into the "island of inversion"

Terry, J. R.*; Brown, B. A.*; Campbell, C. M.*; Cook, J. M.*; Davies, A. D.*; Dinca, D.-C.*; Gade, A.*; Glasmacher, T.*; Hansen, P. G.*; Sherrill, B. M.*; et al.

Physical Review C, 77(1), p.014316_1 - 014316_12, 2008/01

https://doi.org/10.1103/PhysRevC.77.014316
 Times Cited Count：79 Percentile：94.98(Physics, Nuclear)

no abstracts in English

Journal Articles

Competition between normal and intruder states inside the "island of inversion"

Tripathi, V.*; Tabor, S. L.*; Mantica, P. F.*; Utsuno, Yutaka; Bender, P.*; Cook, J. M.*; Hoffman, C. R.*; Lee, S.*; Otsuka, Takaharu*; Pereira, J.*; et al.

Physical Review C, 76(2), p.021301_1 - 021301_5, 2007/08

https://doi.org/10.1103/PhysRevC.76.021301
 Times Cited Count：28 Percentile：82.99(Physics, Nuclear)

no abstracts in English

Journal Articles

Spectroscopy of $$^{36}$$Mg; Interplay of normal and intruder configurations at the neutron-rich boundary of the "Island of Inversion"

Gade, A.*; Adrich, P.*; Bazin, D.*; Bowen, M. D.*; Brown, B. A.*; Campbell, C. M.*; Cook, J. M.*; Ettenauer, S.*; Glasmacher, T.*; Kemper, K. W.*; et al.

Physical Review Letters, 99(7), p.072502_1 - 072502_4, 2007/08

https://doi.org/10.1103/PhysRevLett.99.072502
 Times Cited Count：78 Percentile：89.92(Physics, Multidisciplinary)

no abstracts in English

Journal Articles

$$^{129}$$I/$$^{127}$$I ratios in surface waters of the English Lake District

Atarashi-Andoh, Mariko; Schnabel, C.*; Cook, G.*; MacKenzie, A. B.*; Dougans, A.*; Ellam, R. M.*; Freeman, S.*; Maden, C.*; Olive, V.*; Synal, H.-A.*; et al.

Applied Geochemistry, 22(3), p.628 - 636, 2007/03

https://doi.org/10.1016/j.apgeochem.2006.12.008
 Times Cited Count：16 Percentile：37.55(Geochemistry & Geophysics)

Accelerator Mass Spectrometry (AMS) was used to measure $$^{129}$$I/$$^{127}$$I ratios in surface sea, lake and river water samples collected in 2004 and 2005 from the English Lake District and from South west Scotland, areas which are in relatively close proximity to the Sellafield nuclear fuel reprocessing plant in north west England. The $$^{129}$$I/$$^{127}$$I ratios in surface water collected from the shore of the Irish Sea were in the range 2.8$$times$$10$$^{-6}$$ to 8.2$$times$$10$$^{-6}$$. These ratios are one order of magnitude higher than that of seawater collected from the Irish Sea in 1992, correlating with the increase in $$^{129}$$I content of the Sellafield liquid effluent discharge over the last decade. The $$^{129}$$I/$$^{127}$$I ratios in lakes in the Lake District were in the range 0.7$$times$$10$$^{-6}$$ to 6.4$$times$$10$$^{-6}$$ and decreased exponentially as a function of distance from Sellafield.

Journal Articles

Direct evidence for the onset of intruder configurations in neutron-rich Ne isotopes

Terry, J. R.*; Basin, D.*; Brown, B. A.*; Campbell, C. M.*; Church, J. A.*; Cook, J. M.*; Davies, A. D.*; Dinca, D.-C.*; Enders, J.*; Gade, A.*; et al.

Physics Letters B, 640(3), p.86 - 90, 2006/09

https://doi.org/10.1016/j.physletb.2006.06.061
 Times Cited Count：61 Percentile：92.94(Astronomy & Astrophysics)

no abstracts in English

12 (Records 1-12 displayed on this page)
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