Results 51 to 60 of about 161,882 (329)

Optical guiding in meter-scale plasma waveguides

, 2020
We demonstrate a new highly tunable technique for generating meter-scale low density plasma waveguides. Such guides can enable electron acceleration to tens of GeV in a single stage.
Feder, L., Goffin, A., Miao, B., Milchberg, H. M., Shrock, J. E.   +4 more
core   +1 more source

Optical calibration hardware for the Sudbury Neutrino Observatory [PDF]

, 2005
The optical properties of the Sudbury Neutrino Observatory (SNO) heavy water Cherenkov neutrino detector are measured in situ using a light diffusing sphere ("laserball").
A.L. Hallin, B.A. Moffat, C.A.W. Hearns, D.R. Grant, Dragowsky, F.A. Duncan, J. Maneira, K. Graham, P. Skensved, Poon, R.J. Ford, Tagg   +11 more
core   +3 more sources

Interaction between Molten Al‐Killed Mn–B Steel and Carbon‐Bonded MgO Refractories Based on Recyclates

Advanced Engineering Materials, EarlyView.
High‐temperature interactions between low‐sulfur Al‐killed Mn–B steel and MgO–C refractories (0 and 50 wt% recyclates) are studied via finger immersion tests (1600 °C). Surface‐active elements influence infiltration. MgO/CaS layer forms, along with spinel and calcium silicate.
Matheus Roberto Bellé, Lukas Neubert, Anton Yehorov, Till M. J. Stadtmüller, Christos G. Aneziris, Olena Volkova   +5 more
wiley   +1 more source

Helium neutral beam injection into ASDEX Upgrade [PDF]

Fusion Engineering and Design, 2017
Abstract ASDEX Upgrade's (AUG) neutral beam injection (NBI) system is primarily designed for deuterium injection and delivers 20 MW heating power from two injectors with four beams each at 60 and 93 keV, respectively. As opposed to the cryo pumps of the JET NBI, the Ti getter pumps of the AUG NBI with a pumping speed of 3 × 10 6  l/s for hydrogen do ...
Hopf, C., Rittich, D., Schäffler, J., Thalhammer, J.   +3 more
openaire   +2 more sources

Fusion neutron production with deuterium neutral beam injection and enhancement of energetic-particle physics study in the large helical device

Nuclear Fusion, 2018
The deuterium operation of the large helical device (LHD) heliotron started in March 7, 2017, after long-term preparation and commissioning works necessary to execute the deuterium experiment. A comprehensive set of neutron diagnostics was implemented to
M. Isobe, K. Ogawa, T. Nishitani, N. Pu, H. Kawase, R. Seki, H. Nuga, E. Takada, S. Murakami, Y. Suzuki, M. Yokoyama, M. Osakabe   +11 more
semanticscholar   +1 more source

Laser Metal Powder Deposition of Titanium Microalloyed HSLA Steel FeC0.12Si0.25Mn1.3

Advanced Engineering Materials, EarlyView.
This study investigates the additive manufacturing of titanium‐doped high‐strength low‐alloy (HSLA) steel via laser metal deposition. It reveals distinct process‐structure relationships for elemental powder blends compared to prealloyed feedstocks.
Olaf Stelling, Matthias Steinbacher, Nils Ellendt   +2 more
wiley   +1 more source

A numerical method for calculating the driven current of neutral beam injection in tokamaks

AIP Advances
The current driven by neutral beam injection in tokamak is calculated, and the slowing-down distribution function of the fast ion is obtained by the backward Euler iteration method, including the pitch angle scattering collision.
Wei Chen, Jinjia Cao, Yongzhi Dai, Yulong Zhang, Xiaochang Zheng, Xueyu Gong   +5 more
doaj   +1 more source

Cavity-Enhanced Photodetachment of H− as a Means to Produce Energetic Neutral Beams for Plasma Heating

Atoms, 2019
Neutral beam injection, for plasma heating, will supposedly be achieved, in ITER, by collisional detachment of a pre-accelerated D − beam. Collisional detachment, however, makes use of a D 2 -filled neutralisation chamber, which has ...
Christophe Blondel, David Bresteau, Cyril Drag   +2 more
doaj   +1 more source

Neutral Beam Injection System of CHS [PDF]

Neutral Beam Injection System of CHS
C. Iwai, I. "Nomura, M. Osakabe, R." Akiyama   +3 more
openaire   +1 more source

Beam Probe Imaging of Electron Density in the Chaotic Region of CHS [PDF]

, 2007
A neutral lithium beam probe (LiBP) for the Compact Helical System (CHS) has been extended to a two-dimensional imaging diagnostic (2-D-LiBP). Two-dimensional image of the plasma structure in the edge and separatrix region of the l = 2 helical device is ...
Group CHS, Harukazu IGUCHI, Josef SCHWEINZER, Kiichiro NAKAMURA   +3 more
core   +2 more sources