Exact(7)
Because space-charge forces tend to make the electrons diverge radially, a focusing structure is used to keep the beam at a desired diameter by causing diverging electrons to be sent toward the axis of the helix.
The main elements of a traveling-wave tube (TWT) are (1) an electron gun, (2) a focusing structure that keeps the electrons in a linear path, (3) an RF circuit that causes RF fields to interact with the electron beam, and (4) a collector with which to collect the electrons.
A focusing field, in the active volume and an electron focusing structure at the liquid surface, are used to transport free-electrons to the luminescence field.
For quadrupole failures in the warm transitions in the high energy section, triplet focusing structure is adopted which can be converted locally into a doublet focusing in case of one quadrupole failure and the rematch method is proven very effective.
Compared with the other grating-based focusing structure, the focusing properties of our designed structure can be enhanced on the range of focal length and the transmission at the focal point.
After adding a focusing structure in the front of drift tube loaded with a DC or AC voltage, the height of the ion beam entering into the drift tube is narrowed, leading to a decrease of FWHM and improvement of the resolution.
Similar(53)
Discrete systems of equations have been often used when considering charged particle dynamics in accelerating and focusing structures.
In the eye research field, especially in the study of focusing structures, the methods presented here have a high potential impact.
The reordered Vatican will be a slimmer, more focused structure".
Our mission was to take AmicusHorizon out of supervision and create a simple, delivery focused structure.
As a result we held three "mentor and share" events to showcase to other housing providers how we've successfully implemented a resident focused structure.
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Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.

Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com