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In this work we studied processing of poly(dimethylsiloxane) (PDMS) surfaces using dielectric barrier discharge (DBD) plasma in two different assemblies, one using the primary plasma jet obtained from a conventional DBD and the other using…

Plasma Physics · Physics 2019-08-07 Fellype do Nascimento , Munemasa Machida , Mara A. Canesqui , Stanislav Moshkalev

Planar nitrogen-incorporated ultrananocrystalline diamond, (N)UNCD, has emerged as a unique field emission source attractive for accelerator applications because of its capability to generate high charge beam and handle moderate vacuum…

In search of the potential cathode materials for sodium-ion batteries and to understand the diffusion kinetics, we report the detailed analysis of electrochemical investigation of honeycomb structured Na$_{2}$Ni$_{2}$TeO$_{6}$ material…

Chemical Physics · Physics 2021-12-02 Jayashree Pati , Hari Raj , Simranjot K. Sapra , Anita Dhaka , A. K. Bera , S. M. Yusuf , R. S. Dhaka

Direct carbon fuel cells (DCFCs) are highly efficient power generators fueled by abundant and cheap solid carbons. However, the limited formation of triple phase boundaries (TPBs) within fuel electrodes inhibits their performance even at…

Applied Physics · Physics 2018-02-19 Wei Wu , Yunya Zhang , Dong Ding , Ting He

Micro hollow cathode discharges (MHCD) were produced using 250 m thick dielectric layer of alumina sandwiched between two nickel electrodes of 8 m thickness. A through cavity at the center of the chip was formed by laser drilling technique.…

Formation mechanisms of striations along the discharge channel of a single-filament dielectric barrier discharge (DBD) in argon at atmospheric pressure are investigated by means of a time-dependent, spatially two-dimensional fluid-Poisson…

We show that the spatio-temporal ElectroHydroDynamic (EHD) force production in surface AC-Dielectric Barrier Discharge (AC-DBD) actuators is strongly influenced by both the streamer regime during the positive phase and the micro-discharge…

Applied Physics · Physics 2021-04-20 Konstantinos Kourtzanidis , Guillaume Dufour , François Rogier

In this work, the effect of flashing corona enhancement by introducing Teflon dielectric enclosure in vicinity to the electrode assembly was studied. The discharge operating in air without the dielectric was able to operate within a very…

Plasma Physics · Physics 2019-08-13 Xingxing Wang , Andrei Khomenko , Alexey Shashurin

Atmospheric pressure capillary dielectric barrier oxygen discharge plasma jet is developed to generate non-thermal plasma using unipolar positive pulse power supply. Both optical and electrical techniques are used to investigate the…

Plasma Physics · Physics 2015-09-02 N. C. Roy , M. R. Talukder , B. K. Pramanik

Recent experiments at SLAC [1,2] and CERN [3] have revealed evidence of significant deformation in the form of "pitting" of the cells of the 1.8m series of structures DDS/RDDS (Damped Detuned Structure/Rounded Damped Detuned Structure).…

Accelerator Physics · Physics 2008-11-26 R. M. Jones , N. M. Kroll , T. Higo , Z. Li , R. H. Miller , T. O. Raubenheimer , J. W. Wang

This paper investigates the impact of implantable cardioverter defibrillator (ICD)'s load on its lithium battery power sources through a coupled electro-thermal dynamic model simulation. ICDs are one of the effective treatments available to…

Systems and Control · Electrical Eng. & Systems 2023-02-02 Mahsa Doosthosseini , Mahdi Khajeh Talkhoncheh , Jeffrey L. Silberberg , Sandy Weininger , Hamed Ghods

We report on new findings in a laser driven enhanced electron beam generation in the multi MeV energy range at moderate relativistic laser intensities and their applications. In our experiment, an intense sub-picosecond laser pulse…

In this paper, we introduce the design of electrostatic septum (ESS) for the accelerator of Shanghai Advanced Proton Therapy (SAPT), and discuss its mechanical structure and the material selection of the electrode. The beam loss on the…

Accelerator Physics · Physics 2019-01-16 Zi-Feng He , Lian-Hua Ouyang , Man-Zhou Zhang , De-Ming Li , Zhi-Ling Chen , Xiao-Bing Wu , Yue-Hu Pu

We investigate discharge inception in air, in uniform background electric fields above and below the breakdown threshold. We perform 3D particle simulations that include a natural level of background ionization in the form of positive and…

Plasma Physics · Physics 2014-11-05 Anbang Sun , Jannis Teunissen , Ute Ebert

Interactions between molecules and electrode surfaces play a key role in electrochemical processes and are a subject of extensive research, both experimental and theoretical. In this manuscript, we address the water dissociation reaction on…

Chemical Physics · Physics 2023-02-16 Karen Fidanyan , Guoyuan Liu , Mariana Rossi

We calculate the dielectric response of crystalline silicon following irradiation by a high-intensity laser pulse, modeling the dynamics by time-dependent density functional theory (TDDFT). The pump-probe measurements are numerically…

Materials Science · Physics 2014-02-19 S. A. Sato , K. Yabana , Y. Shinohara , T. Otobe , G. F. Bertsch

600V/20A 4H-SiC Schottky barrier diodes (SBD) were fabricated to investigate the effect of key processing steps, especially before and after a formation of Schottky contact, on the electrical performances of SBD and on a long-term…

Materials Science · Physics 2015-06-18 In-Ho Kang , Sang-Cheol Kim , Jung-Hyeon Moon , Wook Bahng , Nam-Kyun Kim

Major sterilization mechanisms are related to atoms and radicals, charged parti-cles, excited molecules, ozone, and UV radiation. The ROS (Reactive Oxygen Species) are well known as evildoers. These species are easily created in ambient air…

Plasma Physics · Physics 2008-10-31 Jean Marie Cormier , Olivier Aubry , Ahmed Khacef

Recently, a disruptive idea was reported about the discovery of a new type of battery named Liquid Displacement Battery (LDB) comprising liquid metal electrodes and molten salt electrolyte. This cell featured a novel concept of a porous…

Chemical Physics · Physics 2021-11-16 Kashif Mushtaq , Ji Zhao , Norbert Weber , Adelio Mendes , Donald R. Sadoway

Positive and negative streamers are studied in ambient air at 1 bar; they emerge from a needle electrode placed 40 mm above a planar electrode. The amplitudes of the applied voltage pulses range from 5 to 96 kV; most pulses have rise times…

Plasma Physics · Physics 2008-11-21 T. M. P. Briels , J. Kos , G. J. J. Winands , E. M. van Veldhuizen , Ute Ebert