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Journal Articles

Deuterium content and site occupancy in iron sulfide at high pressure and temperature determined using in situ neutron diffraction measurements

Abeykoon, S.*; Howard, C.*; Dominijanni, S.*; Eberhard, L.*; Kurnosov, A.*; Frost, D. J.*; Boffa Ballaran, T.*; Terasaki, Hidenori*; Sakamaki, Tatsuya*; Suzuki, Akio*; et al.

Journal of Geophysical Research; Solid Earth, 128(9), p.e2023JB026710_1 - e2023JB026710_17, 2023/09

https://doi.org/10.1029/2023JB026710
 Times Cited Count：0 Percentile：0.01(Geochemistry & Geophysics)

Small amounts of iron sulphide minerals are found in most rocks from the Earth's mantle and as inclusions trapped in natural diamonds. Hydrogen may dissolve into iron sulphide minerals under high pressures and temperature, but is most likely lost once pressure and temperature are removed. In this study, we determined deuterium contents in iron sulphide, held under high pressure and temperature conditions, using neutron diffraction measurements with 6-ram multi-anvil press at PLANET, J-PARC. Deuterium contents in iron sulphide were measured at high-P, up to 11.4 GPa and high-T to 1300 K in in situ neutron diffraction experiments. The total deuterium content increases with both P and T. The results are used to estimate hydrogen contents of iron sulphide minerals in the deep continental lithospheric mantle, which are found to be in the range 1700-2700 ppm. This corresponds to approximately 2-3 ppm of hydrogen in the bulk mantle.

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：4 Percentile：53.82(Environmental Sciences)

Journal Articles

Neutron-hole states in $$^{131}$$Sn and spin-orbit splitting in neutron-rich nuclei

Orlandi, R.; Pain, S. D.*; Ahn, S.*; Jungclaus, A.*; Schmitt, K. T.*; Bardayan, D. W.*; Catford, W. N.*; Chapman, R.*; Chipps, K. A.*; Cizewski, J. A.*; et al.

Physics Letters B, 785, p.615 - 620, 2018/10

https://doi.org/10.1016/j.physletb.2018.08.005
 Times Cited Count：7 Percentile：53.6(Astronomy & Astrophysics)

Journal Articles

Beta-delayed proton emission from $$^{20}$$Mg

Lund, M. V.*; Andreyev, A. N.; Borge, M. J. G.*; Cederk$"a$ll, J.*; De Witte, H.*; Fraile, L. M.*; Fynbo, H. O. U.*; Greenlees, P. T.*; Harkness-Brennan, L. J.*; Howard, A. M.*; et al.

European Physical Journal A, 52(10), p.304_1 - 304_14, 2016/10

https://doi.org/10.1140/epja/i2016-16304-x
 Times Cited Count：17 Percentile：75.78(Physics, Nuclear)

Journal Articles

Distinguishing fissions of $$^{232}$$Th, $$^{237}$$Np and $$^{238}$$U with beta-delayed $$gamma$$ rays

Iyengar, A.*; Norman, E. B.*; Howard, C.*; Angell, C.; Kaplan, A.*; Ressler, J. J.*; Chodash, P.*; Swanberg, E.*; Czeszumska, A.*; Wang, B.*; et al.

Nuclear Instruments and Methods in Physics Research B, 304, p.11 - 15, 2013/06

https://doi.org/10.1016/j.nimb.2013.03.054
 Times Cited Count：8 Percentile：53.52(Instruments & Instrumentation)

Oral presentation

Neutron hole states in $$^{131}$$Sn studied via the $$^{132}$$Sn(d,t)$$^{131}$$Sn reaction

Orlandi, R.; Pain, S. D.*; Bardayan, D. W.*; Gross, C. J.*; Smith, M. S.*; Jungclaus, A.*; Ahn, S.*; Jones, K. L.*; Pittman, S. T.*; Schmitt, K. T.*; et al.

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6 (Records 1-6 displayed on this page)
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