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helical scanning

   Also found in: Medical 0.01 sec.
helical scanning [′hel·ə·kəl ′skan·iŋ]
(communications)
A method of facsimile scanning in which a single-turn helix rotates against a stationary bar to give horizontal movement of an elemental area.
(electronics)
A method of recording on videotape and digital audio tape in which the tracks are recorded diagonally from top to bottom by wrapping the tape around the rotating-head drum in a helical path.
(engineering)
A method of radar scanning in which the antenna beam rotates continuously about the vertical axis while the elevation angle changes slowly from horizontal to vertical, so that a point on the radar beam describes a distorted helix.
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The process of helical scanning has been adopted by DDS right from the starting, which was earlier used by VCR (Video Cassette Recorder) for a very long period of time.
DDS Tape Technology by Tape4backup / Computers and Internet community
Helical scanning techniques provided the breakthrough capabilities to cover more anatomical area and acquire volume data sets through several rotations around the body.
Toshiba's Aquilion ONE Honored with Medical Design Excellence Award by Business Wire
Toshiba is showcasing several automated workflow enhancements and clinical applications for the Aquilion CT product line, including: * (SURE)Cardio Prospective(a) gating software application that combines high-speed helical scanning with gated intermittent exposure to further reduce dose during cardiac examinations.
Toshiba Showcases New Clinical Applications for Aquilion CT Product ... by Business Wire
 
 
 
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