Perspectives on multiscale modelling and experiments to accelerate materials development for fusion

Gilbert, M. R.*; Arakawa, Kazuto*; Suzudo, Tomoaki; Tsuru, Tomohito; 26 of others*

Journal of Nuclear Materials, 554, p.153113_1 - 153113_31, 2021/10

https://doi.org/10.1016/j.jnucmat.2021.153113

Modelling will continue to do so until the first generation of fusion power plants come on line and allow long-term behaviour to be observed. In the meantime, the modelling is supported by experiments that attempt to replicate some aspects of the eventual operational conditions. In 2019, a group of leading experts met under the umbrella of the IEA to discuss the current position and ongoing challenges in modelling of fusion materials and how advanced experimental characterisation is aiding model improvement. This review draws from the discussions held during that workshop. Topics covering modelling of irradiation-induced defect production and fundamental properties, gas behaviour, clustering and segregation, defect evolution and interactions are discussed, as well as new and novel multiscale simulation approaches, and the latest efforts to link modelling to experiments through advanced observation and characterisation techniques.

Laser-assisted nuclear decay spectroscopy of Au

Harding, R. D.*; Andreyev, A. N.; Barzakh, A. E.*; Cubiss, J. G.*; Van Duppen, P.*; Al Monthery, M.*; Althubiti, N. A.*; Andel, B.*; 26 of others*

Physical Review C, 104(2), p.024326_1 - 024326_16, 2021/08

https://doi.org/10.1103/PhysRevC.104.024326

Radiative neutron capture on Pu in the resonance region at the CERN n_TOF-EAR1 facility

Lerendegui-Marco, J.*; Guerrero, C.*; Mendoza, E.*; Quesada, J. M.*; Eberhardt, K.*; Junghans, A. R.*; Kimura, Atsushi; n_TOF Collaboration*; 126 of others*

Physical Review C, 97(2), p.024605_1 - 024605_21, 2018/02

https://doi.org/10.1103/PhysRevC.97.024605

The S(n, )Si cross section measurement at n_TOF-EAR2 (CERN); From 0.01 eV to the resonance region

Sabat-Gilarte, M.*; Praena, J.*; Harada, Hideo; Kimura, Atsushi; n_TOF Collaboration*; 126 of others*

EPJ Web of Conferences, 146, p.08004_1 - 08004_4, 2017/09

https://doi.org/10.1051/epjconf/201714608004

The S(n, )Si cross section measurement, using B(n,) as reference, at the n_TOF. Experimental Area 2 (EAR2) facility at CERN is presented. Data from 0.01 eV to 100 keV are provided and, for the first time, the cross section is measured in the range from 0.01 eV to 10 keV. The S(n, )Si reaction is of interest in medical physics because of its possible use as a cooperative target to boron in Neutron Capture Therapy (NCT).

Single electron yields from semileptonic charm and bottom hadron decays in Au + Au collisions at = 200 GeV

Adare, A.*; Hasegawa, Shoichi; Imai, Kenichi; Nagamiya, Shoji; Sako, Hiroyuki; Sato, Susumu; Tanida, Kiyoshi; PHENIX Collaboration*; 426 of others*

Physical Review C, 93(3), p.034904_1 - 034904_29, 2016/03

AA2015-1023.pdf:2.82MB

https://doi.org/10.1103/PhysRevC.93.034904

Paleostress value estimation using stylolite in evaporite of IODP core sample from Expedition 402 at the Tyrrhenian Sea

Abe, Noriaki; 26 of others*

no journal, , 

Stylolite, a parting between blocks of rock that exhibit complex mutual column-and-socket interdigitation, is a dehydration structure due to pressure solution and is useful for estimating the paleostress. The stress condition of stylolite formation in evaporite is required to understand basin development. This study analyzed stylolites in evaporites of core samples from IODP Expedition 402 Hole U1617B, which drilled the continent-ocean transition of the Tyrrhenian Sea offshore Italy from February to April 2024. Stylolites were photoed, traced, and analyzed using the discrete Fourier transform method, and estimated crossover-length L that separates two scaling regimes with different roughness exponents for small and large scales. Most stylolites show L as 2 mm. Corresponding overburden stress is 9 MPa and depth is 330 m. An estimated value is not unnatural compared with the sampling depth, suggesting that stylolites in evaporite would also be useful for estimating stress.