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  Subjects -> PHYSICS (Total: 736 journals)
    - ELECTRICITY (2 journals)
    - MECHANICS (5 journals)
    - NUCLEAR PHYSICS (28 journals)
    - OPTICS (53 journals)
    - PHYSICS (623 journals)
    - SOUND (11 journals)
    - THERMODYNAMIC (14 journals)

PHYSICS (623 journals)            First | 1 2 3 4 5 6 7 | Last

Meccanica     Hybrid Journal   (1 follower)
Mechanics of Advanced Materials and Structures     Hybrid Journal   (3 followers)
Mechanics of Materials     Hybrid Journal   (11 followers)
Mechanics of Solids     Hybrid Journal   (1 follower)
Mechanics of Time-Dependent Materials     Hybrid Journal   (1 follower)
Mechanics Research Communications     Hybrid Journal   (2 followers)
Metal Science and Heat Treatment     Hybrid Journal   (8 followers)
Metamaterials     Hybrid Journal   (2 followers)
Micro and Nano Systems Letters     Open Access   (1 follower)
Microfluidics and Nanofluidics     Hybrid Journal   (9 followers)
Microporous and Mesoporous Materials     Hybrid Journal   (3 followers)
Modern Instrumentation     Open Access   (2 followers)
Modern Physics Letters A     Hybrid Journal   (1 follower)
Modern Physics Letters B     Hybrid Journal  
Molecular Diversity     Hybrid Journal  
Moscow University Mechanics Bulletin     Hybrid Journal  
Moscow University Physics Bulletin     Hybrid Journal   (1 follower)
Multibody System Dynamics     Hybrid Journal  
NANO     Hybrid Journal   (6 followers)
Nano Letters     Full-text available via subscription   (37 followers)
Nano Reviews     Open Access   (15 followers)
Nanoscale and Microscale Thermophysical Engineering     Hybrid Journal   (3 followers)
Nanoscale Research Letters     Open Access   (4 followers)
Nanotechnology Magazine, IEEE     Full-text available via subscription   (12 followers)
Natural Science     Open Access   (9 followers)
Nature Communications     Hybrid Journal   (35 followers)
Nature Materials     Full-text available via subscription   (33 followers)
Nature Photonics     Full-text available via subscription   (13 followers)
Nature Physics     Full-text available via subscription   (22 followers)
NDT & E International     Hybrid Journal   (10 followers)
NEUTRINO     Open Access  
Neutron News     Hybrid Journal  
New Journal of Physics     Open Access   (7 followers)
Niels Bohr Collected Works     Full-text available via subscription  
Noise & Vibration Worldwide     Full-text available via subscription   (5 followers)
Noise Notes     Full-text available via subscription   (3 followers)
Nondestructive Testing And Evaluation     Hybrid Journal   (3 followers)
Nonlinear Dynamics     Hybrid Journal   (5 followers)
NTM Zeitschrift für Geschichte der Wissenschaften, Technik und Medizin     Hybrid Journal   (4 followers)
Nuclear Engineering and Design     Hybrid Journal   (11 followers)
Nuclear Fusion     Full-text available via subscription   (1 follower)
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment     Hybrid Journal   (5 followers)
Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms     Hybrid Journal   (6 followers)
Nuclear Medicine and Biology     Hybrid Journal   (1 follower)
Nuclear Physics A     Hybrid Journal   (2 followers)
Nuclear Physics B     Open Access   (1 follower)
Nuclear Physics B - Proceedings Supplements     Hybrid Journal  
Nuclear Physics News     Hybrid Journal  
Nuclear Receptor     Full-text available via subscription   (1 follower)
Open Journal of Biophysics     Open Access   (1 follower)
Open Journal of Fluid Dynamics     Open Access   (3 followers)
Open Journal of Microphysics     Open Access  
Optical Communications and Networking, IEEE/OSA Journal of     Hybrid Journal   (3 followers)
Optical Engineering     Full-text available via subscription   (6 followers)
Optics and Photonics Letters     Open Access   (3 followers)
Optics Express     Open Access   (12 followers)
Optics Letters     Full-text available via subscription   (4 followers)
Optoelectronics Letters     Hybrid Journal  
Organic Electronics     Hybrid Journal   (3 followers)
PAJ: A Journal of Performance and Art     Hybrid Journal   (10 followers)
Particle Physics Insights     Open Access   (1 follower)
Particuology     Hybrid Journal  
Pattern Recognition in Physics     Open Access   (1 follower)
Pergamon Materials Series     Full-text available via subscription  
Phase Transitions and Critical Phenomena     Full-text available via subscription   (1 follower)
Philosophical Magazine     Hybrid Journal   (2 followers)
Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences     Full-text available via subscription   (7 followers)
Philosophy and Foundations of Physics     Full-text available via subscription  
Photonics and Optoelectronics     Open Access   (1 follower)
Photonics Journal, IEEE     Full-text available via subscription   (5 followers)
Photonics Letters of Poland     Open Access  
Physica A: Statistical Mechanics and its Applications     Hybrid Journal   (6 followers)
Physica B: Condensed Matter     Hybrid Journal   (4 followers)
physica status solidi (a)     Hybrid Journal   (1 follower)
physica status solidi (b)     Hybrid Journal   (1 follower)
physica status solidi (c)     Hybrid Journal   (1 follower)
Physica Status Solidi - Rapid Research Letters     Hybrid Journal  
Physical Acoustics     Full-text available via subscription   (1 follower)
Physical Communication     Hybrid Journal  
Physical Mesomechanics     Hybrid Journal  
Physical Review C     Full-text available via subscription   (15 followers)
Physical Review Special Topics - Physics Education Research     Open Access   (5 followers)
Physical Review X     Open Access   (5 followers)
Physical Sciences Data     Full-text available via subscription   (1 follower)
Physics - spotlighting exceptional research     Full-text available via subscription  
Physics and Chemistry of Glasses - European Journal of Glass Science and Technology Part B     Full-text available via subscription   (2 followers)
Physics and Chemistry of Liquids: An International Journal     Hybrid Journal  
Physics and Chemistry of the Earth, Parts A/B/C     Hybrid Journal   (3 followers)
Physics in Medicine & Biology     Full-text available via subscription   (7 followers)
Physics in Perspective     Hybrid Journal   (1 follower)
Physics International     Open Access   (2 followers)
Physics Letters A     Hybrid Journal   (9 followers)
Physics Letters B     Open Access   (2 followers)
Physics of Atomic Nuclei     Hybrid Journal  
Physics of Fluids     Hybrid Journal   (18 followers)
Physics of Life Reviews     Hybrid Journal   (1 follower)
Physics of Particles and Nuclei     Hybrid Journal   (1 follower)
Physics of Particles and Nuclei Letters     Hybrid Journal   (1 follower)
Physics of Plasmas     Hybrid Journal   (6 followers)
Physics of the Dark Universe     Open Access  

  First | 1 2 3 4 5 6 7 | Last

Nuclear Fusion    [3 followers]  Follow    
  Full-text available via subscription Subscription journal
     ISSN (Print) 0029-5515 - ISSN (Online) 1741-4326
     Published by Institute of Physics (IOP) Homepage  [67 journals]   [SJR: 1.198]   [H-I: 72]
  • L to H mode transition: on the role of Z eff
    • Authors: C. Bourdelle; C.F. Maggi, L. Chôné, P. Beyer, J. Citrin, N. Fedorczak, X. Garbet, A. Loarte, F. Millitello, M. Romanelli, Y. Sarazin JET EFDA Contributors
      First page: 022001
      Abstract: In this paper, the nature of the primary instability present in the pedestal forming region prior to the transition into H mode is analysed using a gyrokinetic code on JET-ILW profiles. The linear analysis shows that the primary instability is of resistive nature, and can therefore be stabilized by increased temperature, hence power. The unstable modes are identified as being resistive ballooning modes. Their growth rates decrease for temperatures increasing towards the experimentally measured temperature at the L–H transition. The growth rates are larger for lower effective charge Z eff . This dependence is shown to be in qualitative agreement with recent and past experimental observations of reduced Z eff associated with lower L–H power thresholds.
      Citation: Nuclear Fusion
      PubDate: 2014-01-21T00:00:00Z
      Issue No: Vol. 54, No. 2 (2014)
       
  • Turbulent momentum pinch of diamagnetic flows in a tokamak
    • Authors: Jungpyo Lee; Felix I. Parra Michael Barnes
      First page: 022002
      Abstract: The diamagnetic flow due to the radial pressure and temperature gradients and the E × B flow due to the radial electric field induce different turbulent momentum fluxes in a tokamak. As a result, when the diamagnetic and E × B flows cancel giving zero net toroidal rotation, there will still be finite momentum transport. This may be particularly important near the plasma–wall boundary where a strong pressure drop is established and the two types of flows are similar in size and opposite in direction. The different momentum fluxes in this region can give significant intrinsic rotation peaking in the core with scaling and values similar to those observed in high confinement mode plasmas.
      Citation: Nuclear Fusion
      PubDate: 2014-01-21T00:00:00Z
      Issue No: Vol. 54, No. 2 (2014)
       
  • Formation of carbon allotrope aerosol by colliding plasmas in an inertial
           fusion reactor
    • Authors: Y. Hirooka; H. Sato, K. Ishihara, T. Yabuuchi K.A. Tanaka
      First page: 022003
      Abstract: Along with repeated implosions, the interior of an inertial fusion target chamber is exposed to short pulses of high-energy x-ray, unburned DT-fuel particles, He-ash and pellet debris. As a result, chamber wall materials are subjected to ablation, emitting particles in the plasma state. Ablated particles will either be re-deposited elsewhere or collide with each other, perhaps in the centre-of-symmetry region of the chamber volume. Colliding ablation plasma particles can lead to the formation of clusters to grow into aerosol, possibly floating thereafter, which can deteriorate the subsequent implosion performance via laser scattering, etc. In a laboratory-scale YAG laser setup, the formation of nano-scale aerosol has been demonstrated in vacuum at irradiation power densities of the orders of 10 8–10 W cm −2 at 10 Hz, each 6 ns long, simulating the high-repetition rate inertial fusion reactor situation. Interestingly, carbon aerosol formation has been observed ...
      Citation: Nuclear Fusion
      PubDate: 2014-01-23T00:00:00Z
      Issue No: Vol. 54, No. 2 (2014)
       
  • The effects of increasing lithium deposition on the power exhaust channel
           in NSTX
    • Authors: T.K. Gray; J.M. Canik, R. Maingi, A.G. McLean, J-W. Ahn, M.A. Jaworkski, R. Kaita, M. Ono, S.F. Paul the NSTX Team
      First page: 023001
      Abstract: Previous measurements on the National Spherical Torus Experiment (NSTX) demonstrated peak, perpendicular heat fluxes, q dep,pk ⩽15 MW m −2 with an inter-edge localized mode integral heat flux width, ##IMG## [http://ej.iop.org/images/0029-5515/54/2/023001/nf458999ieqn001.gif] {$\lambda_{q, {\rm int}}^{\rm mid} \sim 3{\hbox{--}}7\,{\rm mm}$} during high performance, high power operation (plasma current, I p = 1.2 MA and injected neutral beam power, P NBI = 6 MW) when magnetically mapped to the outer midplane. Analysis indicates that ##IMG## [http://ej.iop.org/images/0029-5515/54/2/023001/nf458999ieqn002.gif] {$\lambda_{q, {\rm int}}^{\rm mid}$} scales approximately as ##IMG## [http://ej.iop.org/images/0029-5515/54/2/023001/nf458999ieqn003.gif] {$I_{\rm p}^{-1}$} . The extrapolation of the divertor heat flux and λ q for NSTX-U are pr...
      Citation: Nuclear Fusion
      PubDate: 2014-01-21T00:00:00Z
      Issue No: Vol. 54, No. 2 (2014)
       
  • Modelling penetration and plasma response of a dense neutral gas jet in a
           post-thermal quenched plasma
    • Authors: P.B. Parks; W. Wu
      First page: 023002
      Abstract: This paper is about the dynamics of gas jet injection and propagation into the cold, current quench (CQ) discharge following the thermal quench (TQ) phase of a disruption event. Understanding the processes involved in the interpenetration between a dense, fast-moving supersonic gas jet and a magnetized plasma is fundamental to the solution of the disruption mitigation problem using massive gas injection. An analytical model was developed that provides the penetration depth of the jet in the CQ discharge. The model developed incorporates the injector, the vacuum space between injector and plasma, and the low beta CQ plasma through which the jet penetrates. The radially moving gas stagnates at some point inside the plasma by formation of a ‘bottle shock’, resulting in a certain penetration depth. Consistent with experimental findings, it is shown that high fuelling efficiency >70% and good penetration beyond the q = 2 surface is possible in such plasma discharges, but in ...
      Citation: Nuclear Fusion
      PubDate: 2014-01-21T00:00:00Z
      Issue No: Vol. 54, No. 2 (2014)
       
  • ELM mitigation by supersonic molecular beam injection: KSTAR and HL-2A
           experiments and theory
    • Authors: W.W. Xiao; P.H. Diamond, W.C. Kim, L.H. Yao, S.W. Yoon, X.T. Ding, S.H. Hahn, J. Kim, M. Xu, C.Y. Chen, B.B. Feng, J. Cheng, W.L. Zhong, Z.B. Shi, M. Jiang, X.Y. Han, Y.U. Nam, W.H. Ko, S.G. Lee, J.G. Bak, J.W. Ahn, H.K. Kim, H.T. Kim, K.P. Kim, X.L. Zou, S.D. Song, J.I. Song, Y.W. Yu, T. Rhee, J.M. Kwon, X.L. Huang, D.L. Yu, K.D. Lee, S.I. Park, M. Jung, S. Zoletnik, M. Lampert, G.R. Tynan, Y.S. Bae, J.G. Kwak, L.W. Yan, X.R. Duan, Y.K. Oh, J.Q. Dong, the KSTAR Team the HL-2A Team
      First page: 023003
      Abstract: We report recent experimental results from HL-2A and KSTAR on ELM mitigation by supersonic molecular beam injection (SMBI). Cold particle deposition within the pedestal by SMBI is verified in both machines. The signatures of ELM mitigation by SMBI are an ELM frequency increase and ELM amplitude decrease. These persist for an SMBI influence time τ I . Here, τ I is the time for the SMBI influenced pedestal profile to refill. An increase in ##IMG## [http://ej.iop.org/images/0029-5515/54/2/023003/nf466107ieqn001.gif] {$f_{{\rm ELM}}^{{\rm SMBI}}/f_{{\rm ELM}}^{0}$} and a decrease in the energy loss per ELM Δ W ELM were achieved in both machines. Physical insight was gleaned from studies of density and v Φ (toroidal rotation velocity) evolution, particle flux and turbulence spectra, divertor heat load. The characteristic gradients of the pedestal density soften and a change in v Φ ...
      Citation: Nuclear Fusion
      PubDate: 2014-01-21T00:00:00Z
      Issue No: Vol. 54, No. 2 (2014)
       
  • Scaling mechanisms of vapour/plasma shielding from laser-produced plasmas
           to magnetic fusion regimes
    • Authors: Tatyana Sizyuk; Ahmed Hassanein
      First page: 023004
      Abstract: The plasma shielding effect is a well-known mechanism in laser-produced plasmas (LPPs) reducing laser photon transmission to the target and, as a result, significantly reducing target heating and erosion. The shielding effect is less pronounced at low laser intensities, when low evaporation rate together with vapour/plasma expansion processes prevent establishment of a dense plasma layer above the surface. Plasma shielding also loses its effectiveness at high laser intensities when the formed hot dense plasma plume causes extensive target erosion due to radiation fluxes back to the surface. The magnitude of emitted radiation fluxes from such a plasma is similar to or slightly higher than the laser photon flux in the low shielding regime. Thus, shielding efficiency in LPPs has a peak that depends on the laser beam parameters and the target material. A similar tendency is also expected in other plasma-operating devices such as tokamaks of magnetic fusion energy (MFE) reactors durin...
      Citation: Nuclear Fusion
      PubDate: 2014-01-21T00:00:00Z
      Issue No: Vol. 54, No. 2 (2014)
       
  • Measurement of a 2D fast-ion velocity distribution function by tomographic
           inversion of fast-ion D-alpha spectra
    • Authors: M. Salewski; B. Geiger, A.S. Jacobsen, M. García-Muñoz, W.W. Heidbrink, S.B. Korsholm, F. Leipold, J. Madsen, D. Moseev, S.K. Nielsen, J. Rasmussen, M. Stejner, G. Tardini, M. Weiland the ASDEX Upgrade Team
      First page: 023005
      Abstract: We present the first measurement of a local fast-ion 2D velocity distribution function f ( v ‖ , v ⊥ ). To this end, we heated a plasma in ASDEX Upgrade by neutral beam injection and measured spectra of fast-ion D α (FIDA) light from the plasma centre in three views simultaneously. The measured spectra agree very well with synthetic spectra calculated from a TRANSP/NUBEAM simulation. Based on the measured FIDA spectra alone, we infer f ( v ‖ , v ⊥ ) by tomographic inversion. Salient features of our measurement of f ( v ‖ , v ⊥ ) agree reasonably well with the simulation: the measured as well as the simulated f ( v ‖ , v ⊥ ) are lopsided towards negative velocities parallel to the magnetic field, and they have similar shapes. Further, the peaks in the simulation of f ( v ‖ , v ⊥ ) a...
      Citation: Nuclear Fusion
      PubDate: 2014-01-21T00:00:00Z
      Issue No: Vol. 54, No. 2 (2014)
       
  • Spectrum response and analysis of 77 GHz band collective Thomson
           scattering diagnostic for bulk and fast ions in LHD plasmas
    • Authors: M. Nishiura; S. Kubo, K. Tanaka, R. Seki, S. Ogasawara, T. Shimozuma, K. Okada, S. Kobayashi, T. Mutoh, K. Kawahata, T. Watari, LHD Experiment Group, T. Saito, Y. Tatematsu, S.B. Korsholm M. Salewski
      First page: 023006
      Abstract: A collective Thomson scattering (CTS) diagnostic was developed and used to measure the bulk and fast ions originating from 180 keV neutral beams in the Large Helical Device (LHD). Electromagnetic waves from a gyrotron at 77 GHz with 1 MW power output function as both the probe and electron cyclotron heating beam. To clarify the diagnostic applicability of the gyrotron in the 77 GHz frequency band, we investigated the dependence of the probe and receiver beam trajectories in plasmas with high electron densities of (4–5) × 10 19 m −3 and low electron densities of (1–2) × 10 19 m −3 . At high density, a stray radiation component was observed in the CTS spectrum whereas it was negligibly small at low density. The CTS spectrum was measured and analysed after the in situ beam alignment using a beam scan. Qualitatively, the CTS spectrogram shows consistent response to ion temperatures of 1–2 keV for electron densities of (1–2) × 10 19
      Citation: Nuclear Fusion
      PubDate: 2014-01-23T00:00:00Z
      Issue No: Vol. 54, No. 2 (2014)
       
  • L–H power threshold studies in JET with Be/W and C wall
    • Authors: C.F. Maggi; E. Delabie, T.M. Biewer, M. Groth, N.C. Hawkes, M. Lehnen, E. de la Luna, K. McCormick, C. Reux, F. Rimini, E.R. Solano, Y. Andrew, C. Bourdelle, V. Bobkov, M. Brix, G. Calabro, A. Czarnecka, J. Flanagan, E. Lerche, S. Marsen, I. Nunes, D. Van Eester, M.F. Stamp JET EFDA Contributors
      First page: 023007
      Abstract: A comparison of the L–H power threshold ( P thr ) in JET with all carbon, JET-C, and beryllium/tungsten wall (the ITER-like choice), JET-ILW, has been carried out in experiments with slow input power ramps and matched plasma shapes, divertor configuration and I P / B T pairs. The low density dependence of the L–H power threshold, namely an increase below a minimum density n e,min , which was first observed in JET with the MkII-GB divertor and C wall and subsequently not observed with the current MkII-HD geometry, is observed again with JET-ILW. At plasma densities above n e,min , P thr is reduced by ∼30%, and by ∼40% when the radiation from the bulk plasma is subtracted ( P sep ), with JET-ILW compared to JET-C. At the L–H transition the electron temperature at the edge, where the pedestal later develops, is also lower with JET-ILW, for a given edge density. With JET-ILW...
      Citation: Nuclear Fusion
      PubDate: 2014-01-23T00:00:00Z
      Issue No: Vol. 54, No. 2 (2014)
       
 
 
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