Results 251 to 260 of about 536,235 (301)
Some of the next articles are maybe not open access.
Radiation Effects, 1979
Abstract A discussion of electrostatic scanning systems is given with respect to mechanical scanning, uniformity and current capabilities as they relate to ion implanters. Equations for the degradation of uniformity due to wafer tilt. misalignment and changing beam size are presented.
openaire +1 more source
Abstract A discussion of electrostatic scanning systems is given with respect to mechanical scanning, uniformity and current capabilities as they relate to ion implanters. Equations for the degradation of uniformity due to wafer tilt. misalignment and changing beam size are presented.
openaire +1 more source
Interferometric scanning of laser beams
Optics Communications, 1976Abstract A new beam deflection technique is based on modulating the optical transmission characteristics of a modified Fabry-Perot interferometer. Electro-optically changing the interferometer length leads to fast high resolution scanning of the transmission fringe.
Lee W. Casperson, Oscar M. Stafsudd
openaire +1 more source
1972
Publisher Summary This chapter provides an overview of electron beam scanning. A considerable advance in electron-tube design was made in the development of the all-electrostatic vidicon, and in the subsequent variations of its electron beam system for smaller vidicon and the printicon.
openaire +1 more source
Publisher Summary This chapter provides an overview of electron beam scanning. A considerable advance in electron-tube design was made in the development of the all-electrostatic vidicon, and in the subsequent variations of its electron beam system for smaller vidicon and the printicon.
openaire +1 more source
Beam Scanning Metasurface Antennas
2018 IEEE International Symposium on Antennas and Propagation & USNC/URSI National Radio Science Meeting, 2018Metasurface (MTS)antennas have been shown to be a versatile class of planar antenna. In particular, they allow for beam shaping and pattern control through the modulation of the boundary conditions, while keeping unchanged the overall antenna structure. This feature makes them suitable for dynamic reconfiguration.
Pavone S. C. +4 more
openaire +2 more sources
X-Ray Imaging with a Scanning Beam
Radiology, 1975An x-ray imaging system that makes use of a rapidly scanning pencil beam of x rays to acquire images of any part of the body has been developed. The system is capable of generating and displaying images in 15 seconds, using extremely low radiation exposures.
openaire +2 more sources
SPIE Proceedings, 2004
We report on a conceptual design and feasibility demonstration for a scanned beam endoscope, with advantages over present CCD imaging technology in image resolution and quality, light source power, and package diameter. Theoretical calculations were made by optical modeling and finite element analysis of the performance projected for a design meeting ...
John R. Lewis +7 more
openaire +1 more source
We report on a conceptual design and feasibility demonstration for a scanned beam endoscope, with advantages over present CCD imaging technology in image resolution and quality, light source power, and package diameter. Theoretical calculations were made by optical modeling and finite element analysis of the performance projected for a design meeting ...
John R. Lewis +7 more
openaire +1 more source
Electronic Beam Scanning of Injection Lasers
Journal of Applied Physics, 1966Experiments are described that resulted in the spatial scanning of the coherent emission of a GaAs junction laser at 77°K. By electrically separating the p side of the junction into several sections the current distribution is deliberately made nonuniform.
openaire +1 more source
Japanese Journal of Applied Physics, 1990
A novel optoelectronic logic operation technique using a beam scanning laser diode is proposed. This technique realizes fundamental logic operation gates and a spatial encoder with simple configurations.
Hideo Itoh +4 more
openaire +1 more source
A novel optoelectronic logic operation technique using a beam scanning laser diode is proposed. This technique realizes fundamental logic operation gates and a spatial encoder with simple configurations.
Hideo Itoh +4 more
openaire +1 more source
Beam scanning for dose uniformity
Radiation Physics and Chemistry, 1995A low max/min ratio of absorbed dose is a prime objective in any industrial irradiation process. The IMPELA® electron beam irradiator has been further developed to deliver a beam distribution that can be tailored to match the required dose uniformity for specific products and applications.
J. McKeown +4 more
openaire +1 more source
Wideband and beam-scanning reflectarrays
2015 International Workshop on Antenna Technology (iWAT), 2015Reflectarray antenna attracts growing interests in the last decades. This paper presents some recent developments on reflectarray antennas, namely, a broadband reflectarray antenna and a beam-scanning reflectarray antenna. They demonstrate great potential in satellite communications, remote sensing, and radar applications.
openaire +1 more source