title: Some of the factors involved in the Sarvazyan method for recording ultrasound field distributions with special reference to the application of ultrasound in physiotherapy.
abstract: The mapping of ultrasound fields using the dye paper method is described. The mode of action by which the dye concentration is increased has been investigated. Microbubbles on the paper surface and microstreaming of dye solution seem to be essential features of the mapping method. The streaming is thought to inhibit the formation of a dye depletion layer near the paper to an extent dependent on local sound intensity A linear relation between streaming velocity and intensity is derived.
authors.affiliation: Department of Bio-Medical Physics and Bio-Engineering, University of Aberdeen, Foresterhill, UK.
authors.forename: M B
authors.initials: MB
authors.lastname: Shiran
authors.forename: K M
authors.initials: KM
authors.lastname: Quan
authors.forename: D J
authors.initials: DJ
authors.lastname: Watmough
authors.forename: K
authors.initials: K
authors.lastname: Abdellatif
authors.forename: J R
authors.initials: JR
authors.lastname: Mallard
authors.forename: D
authors.initials: D
authors.lastname: Marshall
authors.forename: D W
authors.initials: DW
authors.lastname: Gregory
mesh_terms: D004396:Coloring Agents; D026741:Physical Therapy Modalities; D014464:Ultrasonic Therapy / Q000379:methods*
chemical_list: D004396:Coloring Agents