Results 91 to 100 of about 2,222,331 (211)

Research on ion cyclotron emission driven by deuterium–deuterium fusion-produced tritium ions on the Experimental Advanced Superconducting Tokamak

Nuclear Fusion
In the 2023 experiment campaign, we measured ion cyclotron emission (ICE) signals on the Experimental Advanced Superconducting Tokamak (EAST), edge ICE excited by tritium ions.
Huapeng Zhang, Lunan Liu, Wei Zhang, Xuan Sun, Xinjun Zhang, Zhengshuyan Wang, Zelin Xu, Jiadong Zhang, Weijian Qin, Liuxin Li, Yuhao Jiang, Sichun Qiu, Chengming Qin, Guanghui Zhu, Yongxin Zhu, Kai Zhang, Tao Jin, Zhiping Li   +17 more
doaj   +1 more source

Emittance Measurement for Beamline Extension at the PET Cyclotron

Science and Technology of Nuclear Installations, 2016
Particle-induced X-ray emission is used for determining the elemental composition of materials. This method uses low-energy protons (of several MeV), which can be obtained from high-energy (of tens MeV) accelerators.
Sae-Hoon Park, Sang-Hoon Lee, Yu-Seok Kim   +2 more
doaj   +1 more source

Progress in stellarator research at IPP-Kharkov

Nukleonika, 2016
A new antenna of ‘crankshaft’ type has been installed in the Uragan-2M device in order to increase the plasma density and heating below the ion cyclotron frequency. Antenna operation is modelled by 1D code, which solves boundary problem for time-harmonic
Moiseenko Vladimir E., Lozin Oleksiy V., Shapoval Anatoliy M., Dreval Mykola B., Kulyk Yuliya S., Mironov Yuri K., Romanov Vladyslav S., Pashnev Valeriy K., Sorokovoy Eduard L., Petrushenya Andriy A., Ozherel’ev Fedir I., Kozulya Mykhailo M., Konovalov Volodymyr G., Maznichenko Sergiy M., Garkusha Igor E.   +14 more
doaj   +1 more source

Meal‐Induced Proton Density Fat Fraction and T2∗$$ {{\mathrm{T}}_2}^{\ast } $$ Decrease in Supraclavicular Adipose Tissue

NMR in Biomedicine, Volume 39, Issue 11, November 2026.
In two session per volunteer–fasting control and meal activation–, the volunteers underwent repeated multi‐echo gradient echo acquisitions, which were subsequently processed offline with reconstruction of the source images, water‐fat separation with T2*$$ {{\mathrm{T}}_2}^{\ast } $$ mapping, affine registration, and automated segmentation of three ...
Johannes Raspe, Tianxing Du, Mingming Wu, Jonathan Stelter, Martin Klingenspor, Daniela Junker, Thomas Skurk, Dimitrios C. Karampinos   +7 more
wiley   +1 more source

Observation and interpretation of core ion cyclotron emission driven by D–D fusion-produced tritium ions in EAST

Nuclear Fusion
Recently, in a series of EAST discharges using deuterium neutral beam injection (NBI), tritium (T) ions were produced via deuterium–deuterium (D–D) fusion reactions, resulting in excited ion cyclotron emission (ICE) within the plasma core in H-mode ...
Huapeng Zhang, Lunan Liu, Wei Zhang, Xuan Sun, Xinjun Zhang, Zian Zhang, Yongxin Zhu, K. Ogawa, M. Isobe, Yifeng Zheng, Hui Liao, Chengming Qin, Guanghui Zhu, Yilin Li, Baoming Ren, Jingran Wen, Zixi Li   +16 more
doaj   +1 more source

First Observation of Four‐Band Ion Cyclotron Whistlers

Geophysical Research Letters, Volume 53, Issue 20, 28 October 2026.
Abstract Ion cyclotron whistlers are frequently observed in low Earth orbit, typically formed when right‐hand polarized lightning whistlers undergo polarization reversal at crossover frequencies. In this study, we for the first time report a four‐band ion cyclotron whistler event detected by Van Allen Probe A.
Huicong Chen, Hui Zhu, Tao Xian, Gaopeng Lu, Yingying Zhao, Zhijie Qin, Zhenghao She   +6 more
wiley   +1 more source

Experimental identification of ion cyclotron emission on HL-2A using YOLO neural network algorithm

Nuclear Fusion
Identification of magnetohydrodynamics (MHD) instabilities with neural networks has been extensively applied in the research of magnetically controlled fusion plasmas.
Jiahao Zhang, Jun Zhao, Linzi Liu, Ruihai Tong, Wulyu Zhong, Yi Luo   +5 more
doaj   +1 more source

Radiofrequency and 2.45 GHz electron cyclotron resonance H− volume production ion sources

New Journal of Physics, 2016
The volume production of negative hydrogen ions ( ${{\rm{H}}}^{-}$ ) in plasma ion sources is based on dissociative electron attachment (DEA) to rovibrationally excited hydrogen molecules (H _2 ), which is a two-step process requiring both, hot electrons
O Tarvainen, S X Peng
doaj   +1 more source

A Quality Control Assay to Access the HCl Molarity of Radionuclide Solutions

Chemosensors, 2016
Strontium-82 is produced by proton activation of a rubidium chloride target in an accelerator or cyclotron and purified by ion exchange chromatography. The Strontrium-82 is used in Cardigen generators to produce Rubidium-82 for cardiac imaging.
Jonathan Fitzsimmons
doaj   +1 more source

The Evolution of Parallel Electric Field Across the Earth's Magnetosheath

Geophysical Research Letters, Volume 53, Issue 19, 16 October 2026.
Abstract In Earth's collisionless magnetosheath, turbulence evolution and energy transformation across the system, especially at kinetic scales, remain poorly quantified without full‐coverage of high‐resolution observations. Using multi‐traversal observations from the 2023 and 2024 Magnetospheric Multiscale (MMS) Unbiased Magnetosheath Campaign, we ...
Y. Qi, R. E. Ergun, T. Vo, A. Chasapis, S. J. Schwartz, V. Wilder   +5 more
wiley   +1 more source