Article
Engineering, Electrical & Electronic
Niraj Kumar, Anand Abhishek, Vishant, Kushagra Singhal, Nikita Gurjar, Sahil Jain, Andrey Starodubov, Nikita M. Ryskin
Summary: A miniaturized sheet-electron-beam source has been developed for high-current-density electron beam generation, demonstrating good transmission characteristics. The source operates in self-breakdown conditions without the need for an external magnetic field, achieving high beam current and low beam current loss.
IEEE TRANSACTIONS ON ELECTRON DEVICES
(2021)
Article
Engineering, Electrical & Electronic
Gemma Chapman, Mateus G. Masteghin, David C. Cox, Steven K. Clowes
Summary: This study presents the material and electrical properties of silicon dioxide insulators formed with a focused electron beam using TEOS or TMCTS precursors. It was found that the TEOS precursor produced a purer dielectric with a reduced carbon percentage, while the TMCTS precursor required an additional water vapor supply to suppress the carbon content. The resulting insulators from both precursors exhibited similar electrical properties.
MATERIALS SCIENCE IN SEMICONDUCTOR PROCESSING
(2022)
Article
Physics, Multidisciplinary
R. Pompili, D. Alesini, M. P. Anania, M. Behtouei, M. Bellaveglia, A. Biagioni, F. G. Bisesto, M. Cesarini, E. Chiadroni, A. Cianchi, G. Costa, M. Croia, A. Del Dotto, D. Di Giovenale, M. Diomede, F. Dipace, M. Ferrario, A. Giribono, V Lollo, L. Magnisi, M. Marongiu, A. Mostacci, L. Piersanti, G. Di Pirro, S. Romeo, A. R. Rossi, J. Scifo, V Shpakov, C. Vaccarezza, F. Villa, A. Zigler
Summary: Next-generation plasma-based accelerators can efficiently accelerate electron bunches, but the beam quality, particularly the energy spread, still lags behind state-of-the-art conventional accelerators. Through innovative methods like setting a positive energy chirp, the energy spread of electron bunches in plasma accelerators can be significantly reduced.
Article
Nanoscience & Nanotechnology
Anshuman Cherala, Parth N. Pandya, Kenneth M. Liechti, S. V. Sreenivasan
Summary: Emerging nanoscale applications in energy, electronics, optics, and medicine can benefit from incorporating nanoshaped structures with sharp corners. By utilizing nanoimprint lithography followed by metal-assisted chemical etching, diamond-like nanoshapes have been shown to improve device performance. Studies suggest that scaling nanoshaped imprinting down to sub-10 nm levels is achievable with improved resist materials and novel bridge structures.
MICROSYSTEMS & NANOENGINEERING
(2021)
Article
Physics, Fluids & Plasmas
A. Bonatto, G. Xia, O. Apsimon, C. Bontoiu, E. Kukstas, V. Rodin, M. Yadav, C. P. Welsch, J. Resta-Lopez
Summary: Charged particle acceleration using solid-state nanostructures has gained attention for achieving ultra-high-gradient acceleration. Carbon nanotubes are investigated as a potential medium due to their unique properties. This study examines the feasibility of generating ultra-high-gradient acceleration using carbon nanotube arrays as solid-state plasmas, discussing the generation of plasma wakefields and using analytical expressions for non-uniform plasmas.
PHYSICS OF PLASMAS
(2023)
Article
Chemistry, Multidisciplinary
William A. Hubbard, Jared J. Lodico, Ho Leung Chan, Matthew Mecklenburg, Brian C. Regan
Summary: The study reports the use of STEM EBIC imaging to directly visualize the electronic signatures of dielectric breakdown process in Pt/HfO2/Ti valence change memory devices. It is observed that DB proceeds through two distinct structures: a volatile, soft filament created by electron injection; and a non-volatile, hard filament created by oxygen-vacancy aggregation. This research makes a physical distinction between soft and hard DB, while also considering the progressive change in the relative lengths of the hard and soft filaments.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Physics, Applied
Eugenia Pyurbeeva, Jacob L. Swett, Qingyu Ye, Oscar W. Kennedy, Jan A. Mol
Summary: Feedback-controlled electric breakdown of graphene can be applied to encapsulated graphene constrictions, resulting in conductance switching behavior attributed to atomic-scale fluctuations of graphene below the encapsulating layer. This method opens up possibilities for fabricating encapsulated room-temperature single-electron nanodevices and provides insights into the physical mechanism of conductance switching in graphene nanodevices.
APPLIED PHYSICS LETTERS
(2021)
Article
Instruments & Instrumentation
K. V. Galaydych, G. V. Sotnikov, I. N. Onishchenko
Summary: A linear theory of wakefield excitation by a drive electron bunch in a plasma-dielectric accelerating structure has been developed and validated through numerical simulations. The study shows that the transport of the drive bunch through the plasma-dielectric accelerating structure is stable.
NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION A-ACCELERATORS SPECTROMETERS DETECTORS AND ASSOCIATED EQUIPMENT
(2022)
Article
Physics, Multidisciplinary
C. S. Hue, G. J. Cao, I. A. Andriyash, A. Knetsch, M. J. Hogan, E. Adli, S. Gessner, S. Corde
Summary: Accelerating positrons in plasma for high energy physics applications is crucial, but a tradeoff between energy efficiency and beam quality must be found. Linear or moderately nonlinear regimes with Gaussian drivers provide a good balance, while donut-shaped drivers in the nonlinear regime are better suited for high-charge bunches despite a degraded tradeoff between efficiency and beam quality.
PHYSICAL REVIEW RESEARCH
(2021)
Article
Physics, Fluids & Plasmas
Xin-Zhe Zhu, Min Chen, Bo-Yuan Li, Feng Liu, Xu-Lei Ge, Zheng-Ming Sheng, Jie Zhang
Summary: By using multi-stage plasma channels and relay acceleration, the energy and efficiency of laser wakefield accelerators can be significantly increased, addressing the issue of electron dephasing.
PHYSICS OF PLASMAS
(2022)
Correction
Physics, Multidisciplinary
A. D. Brynes, P. Smorenburg, I Akkermans, E. Allaria, L. Badano, S. Brussaard, M. Danailov, A. Demidovich, G. De Ninno, D. Gauthier, G. Gaio, S. B. van der Geer, L. Giannessi, M. J. de Loos, N. S. Mirian, G. Penco, P. Rebernik, F. Rossi, I Setija, S. Spampinati, C. Spezzani, M. Trovo, P. H. Williams, S. Di Mitri
Summary: This paper serves as an addendum to a previous reference, in which the transverse emittance growth in a bunch compressor of a free-electron laser due to CSR was studied. Analytic results based on CSR theory were compared with experimental and simulation results, showing improved agreement when the bunch compression approaches its maximum value. Recent corrections to the theoretical emittance growth have resulted in a smaller increase than previously expected.
NEW JOURNAL OF PHYSICS
(2021)
Article
Physics, Multidisciplinary
Hua Jin-Yu, Sheng Zheng-Ming
Summary: Significant progress has been made in the study of wakefield excitation in plasma using a self-modulated high-energy proton beam in the past decade, with increased focus on seeding the proton beam modulation with an electron beam to enhance wakefield strength and stability. Theoretical analysis and simulations have shown that electron beam seeding can enhance both the growth rate and phase velocity of the wakefield, with a higher electron beam charge density leading to more significant effects. The distribution and characteristics of the electron seeding beam, such as self-focusing or expanding, have a significant impact on the phase velocity and stability of the wakefield acceleration process.
ACTA PHYSICA SINICA
(2021)
Article
Engineering, Biomedical
Hwichan Ham, Jack J. Yoh
Summary: This study aimed to develop a microjet injector with fully skin-penetrable jet speed, moderately small volume, and highly repeatable injection for medical efficacy. The injector uses electrical and optical energy sources to convert into kinetic energy of the penetrating drug solution, generating skin-penetrable jet speeds of 200-330 m/s. The results show promise for medical procedures requiring uniform drug injection and small dosage control during intradermal procedures.
MEDICAL ENGINEERING & PHYSICS
(2021)
Article
Chemistry, Inorganic & Nuclear
Eman O. Taha, Haifa A. Alyousef, A. M. Dorgham, O. M. Hemeda, Hesham M. H. Zakaly, P. Noga, M. M. Abdelhamied, M. M. Atta
Summary: In this research, the PVDF-PZT composite was successfully manufactured using a solution-casting approach. The effects of electron beam dosage and CNT loading on the structural, dielectric, and dynamic-mechanical characteristics of PVDF-PZT were investigated. The results showed that incorporating CNT into PVDF-PZT increased the storage modulus, while electron beam irradiation decreased the storage modulus and crosslinking density. Additionally, both CNT content and electron beam dosage enhanced the dielectric parameters of PVDF-PZT.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Article
Chemistry, Physical
Baonan Jia, Yingshi Hu, Xiaoning Guan, Jinbo Hao, Binbin Yan, Yunxiao Zu, Gang Liu, Qi Zhang, Gang-Ding Peng, Pengfei Lu
Summary: First-principle methods were used to study the atomic structures and electronic properties of different Al/crystal-SiO2 interface types. It was found that O interface models have larger interface energy, higher stability, and a greater electron potential barrier height compared to Si interface and SiO interface models. Band diagrams revealed that O interface models have a smaller virtual oxide thinning thickness, making them more resistant to dielectric breakdown than Si interface and SiO interface models.
APPLIED SURFACE SCIENCE
(2022)
Article
Engineering, Electrical & Electronic
Huarong Gong, Qi Wang, Difu Deng, Xiang'ai Meng, Yao Dong, Jin Xu, Tao Tang, Xiaogang Su, Zhanliang Wang, Yubin Gong, Gil Travish
IEEE TRANSACTIONS ON ELECTRON DEVICES
(2018)
Article
Physics, Fluids & Plasmas
R. M. Magee, T. Roche, M. C. Thompson, M. Tobin, M. Beall, B. H. Deng, S. Korepanov
Article
Instruments & Instrumentation
A. M. DuBois, V. Sokolov, K. Knapp, M. C. Thompson
REVIEW OF SCIENTIFIC INSTRUMENTS
(2018)
Article
Instruments & Instrumentation
M. E. Griswold, E. M. Granstedt, M. C. Thompson, K. Knapp, B. Koop
REVIEW OF SCIENTIFIC INSTRUMENTS
(2018)
Article
Physics, Multidisciplinary
R. M. Magee, A. Necas, R. Clary, S. Korepanov, S. Nicks, T. Roche, M. C. Thompson, M. W. Binderbauer, T. Tajima
Article
Physics, Fluids & Plasmas
H. Gota, M. W. Binderbauer, T. Tajima, S. Putvinski, M. Tuszewski, B. H. Deng, S. A. Dettrick, D. K. Gupta, S. Korepanov, R. M. Magee, T. Roche, J. A. Romero, A. Smirnov, V Sokolov, Y. Song, L. C. Steinhauer, M. C. Thompson, E. Trask, A. D. Van Drie, X. Yang, P. Yushmanov, K. Zhai, I Allfrey, R. Andow, E. Barraza, M. Beall, N. G. Bolte, E. Bomgardner, F. Ceccherini, A. Chirumamilla, R. Clary, T. DeHaas, J. D. Douglass, A. M. DuBois, A. Dunaevsky, D. Fallah, P. Feng, C. Finucane, D. P. Fulton, L. Galeotti, K. Galvin, E. M. Granstedt, M. E. Griswold, U. Guerrero, S. Gupta, K. Hubbard, I. Isakov, J. S. Kinley, A. Korepanov, S. Krause, C. K. Lau, H. Leinweber, J. Leuenberger, D. Lieurance, M. Madrid, D. Madura, T. Matsumoto, V Matvienko, M. Meekins, R. Mendoza, R. Michel, Y. Mok, M. Morehouse, M. Nations, A. Necas, M. Onofri, D. Osin, A. Ottaviano, E. Parke, T. M. Schindler, J. H. Schroeder, L. Sevier, D. Sheftman, A. Sibley, M. Signorelli, R. J. Smith, M. Slepchenkov, G. Snitchier, J. B. Titus, J. Ufnal, T. Valentine, W. Waggoner, J. K. Walters, C. Weixel, M. Wollenberg, S. Ziaei, L. Schmitz, Z. Lin, A. A. Ivanov, T. Asai, E. A. Baltzr, J. C. Platt
Article
Engineering, Electrical & Electronic
Ruifeng Zhang, Xiaoyi Lin, Tieyang Wang, Xiaoyi Xiao, Zhanliang Wang, Zhaoyun DuanO, Yubin Gong, Jinjun Feng, Gil Travish, Huarong Gong
IEEE TRANSACTIONS ON ELECTRON DEVICES
(2020)
Article
Computer Science, Information Systems
Ruifeng Zhang, Qi Wang, Difu Deng, Yao Dong, Fei Xiao, Gil Travish, Huarong Gong
Summary: Researchers have made progress in achieving high-power THz sources through high-harmonic traveling wave tubes and dual-beam schemes, both of which show advantages and promising prospects.
Article
Engineering, Electrical & Electronic
Feng Lan, Mengzhen Li, Zugen Guo, Ruifeng Zhang, Jiezhong Luo, Han Lai, Zhaoyun Duan, Yubin Gong, Fei Xiao, Gil Travish, Huarong Gong
Summary: In this article, a phase jumping technology is proposed to improve the beam-wave interaction efficiency of THz FWG-TWT. By adjusting the phase gap between the electron beam and electromagnetic wave, more energy is transferred to the electromagnetic wave. A THz FWG-TWT example utilizing the phase jumping is presented and shows an efficiency improvement of 60%-140% within the operation bandwidth.
IEEE TRANSACTIONS ON ELECTRON DEVICES
(2022)
Article
Nuclear Science & Technology
M. C. Thompson, B. Levitt, B. A. Nelson, U. Shumlak
Summary: The recent experiments on the FuZE device validate the expected plasma stability and thermonuclear fusion reaction rates. Efforts are being made to enhance the pinch current, the stable plasma duration, and the DD fusion neutron production. The development of power handling systems suitable for future power plants is also underway at Zap Energy, including technologies like high-average-power repetitive pulsed power and liquid-metal wall systems.
FUSION SCIENCE AND TECHNOLOGY
(2023)
Proceedings Paper
Engineering, Electrical & Electronic
Gil Travish, Aquila Mavalankar, Jamie Cameron, Manuel Fohler, Isabel Gomes, Silvia Sottini, Nivedita Yumnam
2020 IEEE 21ST INTERNATIONAL CONFERENCE ON VACUUM ELECTRONICS (IVEC 2020)
(2020)
Article
Computer Science, Information Systems
Alan M. Cook, Colin D. Joye, Jeffrey P. Calame
Proceedings Paper
Engineering, Electrical & Electronic
Aquila Mavalankar, Jamie Cameron, Isabel Gomes, Silvia Sottini, Manuel Fohler, Vadim Soloviev, Gil Travish, Ken Mingard, Caterina Minelli
2018 31ST INTERNATIONAL VACUUM NANOELECTRONICS CONFERENCE (IVNC)
(2018)
Proceedings Paper
Engineering, Electrical & Electronic
Reginald L. Jaynes, Alexander N. Vlasov, John C. Rodgers, Frank N. Wood, Colin D. Joye, Dean E. Pershing, Alan M. Cook, David K. Abe
2018 IEEE INTERNATIONAL VACUUM ELECTRONICS CONFERENCE (IVEC)
(2018)
Proceedings Paper
Engineering, Electrical & Electronic
Colin D. Joye, Reginald L. Jaynes, Jeffrey P. Calame, John C. Rodgers, Alan M. Cook, Scooter D. Johnson, Alexander T. Burke
2018 IEEE INTERNATIONAL VACUUM ELECTRONICS CONFERENCE (IVEC)
(2018)
