Results 121 to 130 of about 2,222,331 (211)

Investigation of spatial distribution characteristics of emission intensity in detachment on the divertor simulator TPDsheet-ICR

open access: yesNuclear Materials and Energy
For the first time, we have revealed the spatial structure of a detached plasma with electron–ion recombination (EIR) and molecular-activated recombination (MAR) in response to changes in ion temperature (Ti) and gas pressure.
A. Tonegawa   +8 more
doaj   +1 more source

Gyrokinetic profile prediction and validation of a negative triangularity plasma in ASDEX Upgrade

open access: yesNuclear Fusion
In this work, gyrokinetic simulations are performed with the CGYRO code (Candy et al 2016 J. Comput. Phys. 324 73–93) for a negative triangularity H-mode plasma in ASDEX Upgrade, and compared with experimental measurements.
R. Bielajew   +13 more
doaj   +1 more source

Lake dissolved organic matters seasonal variations is a main driver of N2O emission: In molecular insights by using FT-ICR MS

open access: yesWater Research X
Anthropogenic activities have introduced substantial quantities of carbon and nitrogen into aquatic system, which are hotspots for nitrous oxide emissions and play multiple roles in the global biogeochemical cycle. We characterized the seasonal variation
Zezheng Wang   +6 more
doaj   +1 more source

Velocity-space tomography of MeV-range fast-ion distributions in JET using wave–particle interaction priors

open access: yesNuclear Fusion
The fast-ion distribution function in fusion plasmas can only be measured indirectly by solving an ill-posed inverse problem. The inversion being ill-posed necessitates regularisation of the problem to ensure that the reconstruction of the fast-ion ...
M. Rud   +14 more
doaj   +1 more source

Molecular composition of dissolved organic matter determines lower-than-expected CH4 production in Mollisols under warming and atmospheric CO2 enrichment

open access: yesGeoderma
CH4 emissions from agricultural activities in response to anticipated climate changes, such as elevated temperature (warming) and elevated CO2 levels (eCO2), remain highly uncertain. In this study, warming, eCO2, and their combined effects were simulated
Jian Liu   +12 more
doaj   +1 more source

Tungsten impurity reduction by ICRH in a high power injection and high performance H-mode discharge on EAST

open access: yesNuclear Fusion
The decrease in tungsten (W) content with the higher ion cyclotron resonance heating (ICRH) power is observed and explained for the first time in a high power injection ( P _inj > 10 MW), high performance ( β _N ∼ 2, β _P ∼ 2.8, n _e / n _GW ∼ 80%, f _BS
Zhen Zhou   +21 more
doaj   +1 more source

Observations and interpretation of energetic particle-driven ion cyclotron emission from JET DT plasmas

open access: yes, 2000
Ion cyclotron emission (ICE) excited by collective instability of fusion #alpha#-particles has been observed during deuterium-tritium experiments with radio-frequency heating and neutral beam injection (NBI) in JET.
McClements, K.   +3 more
core  

Experimental activation assessment of open-type yoke in a PET cyclotron by non-destructive/destructive γ-ray measurement approaches. [PDF]

open access: yesMed Phys
Yoshida G   +14 more
europepmc   +1 more source

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