Results 61 to 70 of about 585 (174)

Dust collection after the high fluence campaign of the WEST tokamak

Nuclear Materials and Energy
For Phase 2 of WEST, the lower divertor was entirely equipped with actively cooled ITER grade plasma-facing units made of chains of tungsten beveled monoblocks. In this configuration, dust particles were collected in 2023, after the first plasma campaign
C. Arnas, A. Campos, M. Diez, E. Bernard, C. Brun, C. Martin, F. Gensdarmes, S. Peillon, E. Tsitrone   +8 more
doaj   +1 more source

GOES‐R Series X‐Ray Sensor (XRS): 2. On‐Orbit Measurements and Calibrations

Journal of Geophysical Research: Space Physics, Volume 131, Issue 5, May 2026.
Abstract An X‐Ray Sensor (XRS) has been onboard each of the National Oceanic and Atmospheric Administration (NOAA) Geostationary Operational Environmental Satellites (GOES) since 1975. XRS measures full‐disk soft X‐ray irradiance in two wavelength bands, 0.05–0.4 nm and 0.1–0.8 nm.
Janet L. Machol, Stefan M. Codrescu, Courtney L. Peck, Elysia S. Lucas, James F. Mothersbaugh III, Thomas N. Woods, Ann Marie Mahon, James Negus, Donald L. Woodraska, Thomas D. Eden Jr., Francis G. Eparvier, Andrew R. Jones, Brooke Kotten, Laurel A. Rachmeler, Andrew C. Wilson, Brian T. Kress, Juan V. Rodriguez, Rodney A. Viereck   +17 more
wiley   +1 more source

Cu and SnO2‐Modified Carbon Felt for Electroenzymatic CO2 Upcycling

ChemSusChem, Volume 19, Issue 8, 28 April 2026.
Bioelectrode platform for sustainable CO2‐to‐formate conversion, combining electrochemical cofactor regeneration with enzyme immobilization. Cu‐modified electrodes enhanced NADH recycling compared to SnO2, while coupling with affinity‐immobilized formate dehydrogenase improved enzymatic turnover and stability while maintaining faradaic efficiency.
Diego Maureira, Lorena Wilson, Hilmar Guzmán, Tonia Tommasi, Debora Fino, Simelys Hernández, Carminna Ottone   +6 more
wiley   +1 more source

The effect of CD4 injection on WD molecule sputtering at the divertor target in EAST

Nuclear Materials and Energy
Tungsten (W) is one of the preferred plasma-facing materials for future fusion reactors because of the advantages of high melting point, low physical sputtering rate and low fuel retention.
Q. Zhang, F. Ding, B.C. Qi, L.Y. Meng, L. Yu, C.Y. Zhang, Z.H. Hu, R. Ding, L. Wang, H.S. Zhou, G.N. Luo, Z.S. Yang, X. Yang   +12 more
doaj   +1 more source

A Distributed Bragg Reflector Interface for Filter‐Free Fluorescence Spectro‐Microscopy With High Spectral Tunability

physica status solidi (a), Volume 223, Issue 8, 22 April 2026.
An all‐dielectric TiO2/SiO2 distributed Bragg reflector is engineered as a substrate‐integrated optical filter, enabling filter‐free fluorescence spectro‐microscopy. Nanometer‐scale layer control aligns excitation suppression and emission reflection for specific fluorophores, achieving high‐contrast imaging at sub‐monolayer coverage.
Dibyendu Khan, Chishu Homma, Ahmed Ben Romdhane, Hocine Bahri, Xue Du, Xuan Thang Vu, Sven Ingebrandt, Vivek Pachauri   +7 more
wiley   +1 more source

Tungsten melting and erosion under plasma heat load in tokamak discharges with disruptions

Nuclear Materials and Energy, 2017
Full tungsten poloidal and mushroom limiters were tested in series of experiments with disruptions in the T-10 tokamak. Significant melting, formation of small craters and erosion of the tungsten limiter have been observed after ∼400 discharges with ...
V.P. Budaev, Yu.V. Martynenko, S.A. Grashin, R.N. Giniyatulin, I.I. Arkhipov, A.V. Karpov, P.V. Savrukhin, E.A. Shestakov, R.Yu. Solomatin, L.B. Begrambekov, N.E. Belova, S.D. Fedorovich, L.N. Khimchenko, V.M. Safronov   +13 more
doaj   +1 more source

Fe–Mn Crust δ98Mo Decline Records Tectonic Forcing on Marine Oxide Sink Reduction During the Early Eocene–Early Oligocene

Geophysical Research Letters, Volume 53, Issue 7, 16 April 2026.
Abstract S, Tl, and W isotope records document pronounced early Eocene shifts in marine redox, yet the absence of a Mo isotope record obscures its progression. Here, we present ∼80 Myr Mo–Os–Be–Nd isotope profiles from a Northwest Pacific hydrogenetic Fe–Mn crust, revealing a systematic δ98Mo decline from −0.24‰ (early Eocene) to −0.83‰ (early ...
Limin Zhang, Jiangbo Ren, Hongjin Chen, Haozhe Wang, Zhen Sun, Yong Yang, Huodai Zhang, Zhenquan Wei, Lixue Zhang, Yingzhi Ren, Gaowen He   +10 more
wiley   +1 more source

Detachment control in KSTAR with Tungsten divertor

KSTAR has recently undergone an upgrade to use a new Tungsten divertor to run experiments in ITER-relevant scenarios. Even with a high melting point of Tungsten, it is important to control the heat flux impinging on tungsten divertor targets to minimize sputtering and contamination of the core plasma.
Gupta, Anchal, Eldon, David, Bang, Eunnam, Kwon, KyuBeen, Lee, Hyungho, Leonard, Anthony, Hwang, Junghoo, Xu, Xueqiao, Zhao, Menglong, Zhu, Ben   +9 more
openaire   +2 more sources

Recent Advances in Carbonyl–Olefin and Carbonyl–Alkyne Metathesis Reactions

ChemistryEurope, Volume 4, Issue 4, April 2026.
Carbonyl–olefin and carbonyl–alkyne metathesis enable atom‐economic C–C bond formation beyond classical olefin metathesis. This review highlights recent advances in photochemical, Lewis‐acid, Brønsted‐acid, and organocatalytic strategies, mechanistic insights, and synthetic applications, showcasing carbonyl metathesis as a versatile platform for modern
Komal Kalonia, Ramees Komath, Martin Breugst   +2 more
wiley   +1 more source

A new design concept of actively cooled plasma-facing units for the divertors of fusion reactors

Nuclear Materials and Energy
This paper sketches a new divertor design concept that solves most of the issues already identified with the actual ITER design, especially in what concerns transient heat loading. It resists ELM heat loads better than the present ITER design.
J.P. Gunn, M. Firdaouss, M. Richou, Claudio Maria De Simone   +3 more
doaj   +1 more source