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13 terms
Photonics Dictionary: T
Clear All Filters x
tube x
T x
traveling wave phototube
A traveling wave tube (TWT) containing a photocathode and window that, receiving a laser beam, produces a modified photoelectric current that is accelerated and propagated into its helical frame.
target
1. The anode or anticathode of an x-ray tube that emits x-rays when bombarded by electrons. 2. The screen in a television imaging tube that is scanned by an electron beam to determine the...
television microscope
A device designed to enlarge the image of a microscopic object by television process. It may be a flying spot scanner that is used to scan the microscope slide, or a camera tube-microscope...
tetrode
An electron tube that has an anode, a cathode, a control electrode and another electrode (usually a screen grid).
thermionic diode
A diode electron tube that contains a heated cathode.
thyratron
An arc discharge tube having a grid that is used to start the discharge through an atmosphere of inert gas or vapor at low pressure.
TOW
tube-launched optically tracked wire-guided
trace
In a cathode-ray tube, the visible line or lines formed on the screen by the deflection of the electron stream.
transversely excited atmosphere carbon dioxide laser
Abbreviated TEA CO2 laser. A gas laser that provides shorter pulses and higher peak powers than conventional CO2 lasers. The electrical excitation pulse occurs transversely to the optical axis...
trapezium distortion
The distortion of an image formed by a cathode-ray tube, caused by unbalanced deflection voltages or deflection voltages that are not symmetrically aligned with the resultant anode potential.
triad
In a color cathode-ray tube, a grouping of three color dots (red, blue and green) that represent one pixel in the final image.
triode
An electron tube with an anode, a cathode and a regulating electrode (grid).
TWT
traveling wave tube
Photonics Dictionary
T
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