搜索结果: 1-15 共查到“物理学 e-beam”相关记录116条 . 查询时间(0.125 秒)
Autopsy of an LHC beam dump（图）
大型强子对撞机 光束倾倒 Autopsy
2023/5/26
During LS2, the LHC’s two external beam dumps were removed from the tunnel and replaced with spare ones. After ten years of operation, they were showing signs of degradation, notably nitrogen leaks. B...
The 23rd International Conference on Ion Beam Analysis (IBA-2017), organized by Fudan University, in cooperation with the International Atomic Energy Agency (IAEA), will be held at Fudan University in...
The 23rd International Conference on Ion Beam Analysis（IBA-2017）
The 23rd International Conference Ion Beam Analysis
2017/3/9
The 23rd International Conference on Ion Beam Analysis (IBA-2017), organized by Fudan University, in cooperation with the International Atomic Energy Agency (IAEA), will be held at Fudan University in...
Hierarchical Multiple Bit Clusters and Patterned Media Enabled by Novel Nanofabrication Techniques - High Resolution Electron Beam Lithography and Block Polymer Self Assembly
Diblock copolymer E-beam lithography Magnetism Multiple state cluster Nanofabrication Self assembly
2014/11/20
This thesis discusses the full scope of a project exploring the physics of hierarchical clusters of interacting nanomagnets. These clusters may be relevant for novel applications such as multilevel da...
Weak measurements of a large spin-dependent angular splitting of light beam on reflection at Brewster angle
Weak measurements light beam reflection Brewster angle Optics
2012/5/31
We reveal a large spin-dependent angular splitting of light beam on reflection at Brewster angle both theoretically and experimentally. A simple weak measurements system manifesting itself for the bui...
Study of tunable resonances in laser beam divergence and beam deflection
Tunable radiofrequency resonances noise of lasers beam-width fluctuation beam-deviation fluctuation
2012/5/29
New, fundamental resonant properties of laser resonators are theoretically predicted and experimentally demonstrated. These resonances occur either in the time dependence of the beam width and that of...
Tevatron Beam Halo Collimation System: Design, Operational Experience and New Methods
Accelerator Subsystems and Technologies bent crystal collimation hollow electron beam collimation Accelerator Physics
2012/5/17
Collimation of proton and antiproton beams in the Tevatron collider is required to protect CDF and D0 detectors and minimize their background rates, to keep irradiation of superconducting magnets unde...
Active Negative Index Metamaterial Powered by an Electron Beam
Active Negative Index Metamaterial Electron Beam Optics
2012/5/17
A novel active negative index metamaterial that derives its gain from an electron beam is intro- duced. The metamaterial consists of a stack of equidistant parallel metal plates perforated by a period...
In situ variability of mass-specific beam attenuation and backscattering of marine particles with respect to particle size, density, and composition
mass-specific beam attenuation size density composition
2014/4/4
This study analyzes relationships between concentration of suspended particles represented by dry mass,
[SPM], or area, [AC], and optical properties including particulate beam attenuation (cp), side ...
The analogy between optical beam shifts and quantum weak measurements
analogy between optical beam shifts quantum weak measurements Optics
2012/4/19
We describe how the notion of optical beam shifts (including the spatial and angular Goos-H\"anchen shift and Imbert-Federov shift) can be understood as a classical analogue of a quantum measurement o...
Simulations for CLIC Drive Beam Linac
Simulations CLIC Drive Beam Linac Compact Linear Collider
2012/2/28
The Drive Beam Linac of the Compact Linear Collider (CLIC) has to accelerate an electron beam with 4.2 A up to 2.4 GeV in almost fully-loaded structures. The pulse contains about 70000 bunches, one in...
Ambient beam motion and its excitation by ghost lines in the Tevatron
Ambient beam motion its excitation ghost lines Tevatron
2012/2/28
Transverse betatron motion of the Tevatron proton beam is measured and analyzed. It is shown that the motion is coherent and excited by external sources of unknown origins. Observations of the time-va...
Summary of session 3 on synchrotron radiation and beam dynamics
Summary session 3 synchrotron radiation beam dynamics
2012/2/28
Below we summarize presentations, discussions and general conclusions of the Workshop session on "Beam Dynamics Issues". Major subjects include effects due to synchrotron radiation (SR), cryogenic loa...
Optical Torque Exerted on a Rotator under Illumination of a Vortex Beam
Optical Torque Exerted Rotator Illumination Vortex Beam
2013/7/3
We investigate the torque on a specially shaped rotator produced by a vortex beam. The formulas for the torque alongx, yandzdirections are derived, and numerically calculation is performed. It is foun...
A stress-induced curved polysilicon actuator with a grating is achieved for the application of recordable optical pickups, which have been realized on a single silicon chip using a two-layer poly-sili...