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Space Charge Compensation of Negative Ion Beams

M.Cavenago[1], and P. Veltri[2]
[1]INFN-LNL, Legnaro, PD, Italy
[2]Consorzio RFX, Padova, Italy

Neutral Beam Injectors for ITER require development of negative ion sources and beams with carefully ... 扩展阅读

Simulation of Topology Optimized Electrothermal Microgrippers

O. Sardan[1], D. Petersen[1], O. Sigmund[2], and P. Boggild[1]
[1]DTU Nanotech, Denmark
[2]DTU Mechanical Engineering, Denmark

In this work, electrothermal microgrippers designed using topology optimization are modeled. The ... 扩展阅读

Modeling of Nonuniform Magnetisation of a Ferrite Loaded Waveguide

H. V. Dixit [1], A. R. Jadhav [2], Y. M. Jain [3], A. N. Cheeran [1], V. Gupta [2], P. K. Sharma [3],
[1] Veermata Jijabai Technological Institute, Mumbai, Maharashtra, India
[2] Vidyavardhini's College of Engineering and Technology, Vasai, Maharashtra, India
[3] Institute for Plasma Research, Gandhinagar, Gujarat, India

The modelling of a ferrite material is conventionally carried out using the Polder permeability tensor which ... 扩展阅读

Modeling Post Convection Cooling of High Power Waveguide

H. V. Dixit [1], A. R. Jadhav [2], Y. M. Jain [3], A. N. Cheeran [1], V. Gupta [2], P. K. Sharma [3],
[1] Veermata Jijabai Technological Institute, Mumbai, Maharashtra, India
[2] Vidyavardhini's College of Engineering and Technology, Vasai, Maharashtra, India
[3]Institute for Plasma Research, Gandhinagar, Gujarat, India

Waveguide Structures are often used for transmission of high CW power. The inherent conductor losses in the ... 扩展阅读

Laser-Material Interaction Modeling using the COMSOL Multiphysics® software

E. C. Chevallier [1], V. Bruyère [1], P. Namy [1],
[1] SIMTEC, Grenoble, France

Surface engineering is a key technology used in a wide range of sectors in industry. Among other techniques, ... 扩展阅读

A triple band cross-polarization converter based on ultra-thin graphene-integrated metasurface

Zhifei Yao [1], Yueke Wang [1], Shumei Gao [1],
[1] Optical Information Science and Technology Department, Jiangnan University, Wuxi, Jiangsu, china

We propose a triple band tunable and high-efficient reflected cross-polarization converter (CPC) in the mid ... 扩展阅读

介质深层充电的电场与热场耦合计算

王松 [1], [2], 唐小金 [2]
[1] 军械工程学院静电与电磁防护研究所, 石家庄，河北，中国
[2] 北京卫星环境工程研究所, 北京，中国

摘要：在太空高能带电粒子作用下，航天器上存在绝缘介质深层充电的危险。介质内沉积电荷导致局部出现强电场（达到107V/m），有可能造成介质击穿放电。一方面，充电过程与介质电导率密切相关，而电导率受温度影响显著，另一方面 ... 扩展阅读

Study of Energy Transfer Mechanism for a Synchrotron X-ray Gas Absorber with COMSOL Multiphysics

A. Martín Ortega [1], Y. Dabin [1], T. Minea [2], A. Lacoste [3]
[1] ESRF, Grenoble, France
[2] LPGP, Université Paris-Sud XI, Orsay, France
[3] LPSC, Université Joseph Fourier, Grenoble, France

The high power of X-ray beam delivered by synchrotrons and free electron lasers, up to 240 W/mm2, requires ... 扩展阅读

Design and Optimization of an All Optically Driven Phase Correction MEMS Deformable Mirror Device using Finite Element Analysis

V. Mathur[1], K. Anglin[1], V.S. Prasher[1], K. Termkoa[1], S.R. Vangala[1], X. Qian[1], J. Sherwood[1], W.D. Goodhue[1], B. Haji-Saeed[2], and J. Khoury[2]

[1]Photonics Center, University of Massachusetts-Lowell, Lowell, Massachusetts, USA
[2]Air Force Research Laboratory/Sensors Directorate, Hanscom Air Force Base, Massachusetts, USA

Optically addressable MEMS mirrors are required for future high density adaptive optics array systems. We ... 扩展阅读

Study of Circular Waveguide Window for Millimeter Wave Transmission Line

K. D. Donda [1], R. Kumar [2], H. B. Pandya [2],
[1] Gujarat Technological University , Gandhinagar, India
[2] ITER-India (Institute for Plasma Research), Gandhinagar,India

Vacuum window is required in the millimeter wave transmission line in ITER*. It is to be designed to minimize ... 扩展阅读

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