Focal spot definition

Focal spot means the area projected on the anode of the x-ray tube by the electrons accelerated from the cathode and from which the useful beam originates.
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Focal spot means the area on the anode of the x-ray tube bombarded by the electrons accelerated from the cathode and from which the useful beam originates. Also referred to as "Actual focal spot."
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Focal spot means the primary source of x rays produced at the location where the anode of an x-ray tube intercepts the electron beam.
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Examples of Focal spot in a sentence

  • Focal spot degradation due to the diffraction arising from the cropping of the beam by KB mirrors can be seen.

  • Incident laser power: 4 kW; Focal spot diameter: 0.6 mm; Material: 304-stainless steel.

  • Focal spot: The focal spot size, magnification factor and source to image receptor distance (SID) shall be appropriate for mammography.

  • Focal spot Focal spot was optimised using the same procedure as for anode heel effect.

  • Focal spot - axis indicator shall be checked for all positions of the X-ray tube for linear and/or rotational movements.

  • Focal spot size: pinhole method To determine the focal spot dimensions (f) with a pinhole, a µ30 m gold/platinum alloy pinhole is used.

  • Focal spot size: slit camera method To determine the focal spot dimensions (f) with a slit camera, a 10 mm slit is used.

  • Focal spot means the area of the target on the anode of an x-ray tube that is struck by electrons emitted from the cathode.

  • In the ISO 9000 or ISO 14000 context, it relates to the work of national accreditation bodies which have been set up in a number of countries to provide some measure of control over the activities of quality system or environmental management system certification bodies.

  • In addition all the equipment should be checked and calibrated specifically for the following: ( a) Collimation alignment check; (b) Focal spot size measurement; (c) Beam quality half layer value HLV assessment; (d) Automatic exposure control(AEC) check; (e) Artefact evaluation; (f) Breast compression deice check; (g) Screen cleanliness check.


More Definitions of Focal spot

Focal spot means the area projected on the anode of the x-ray tube
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Related to Focal spot

  • Professional Sports means a sport, which would remunerate a player in excess of 50% of his or her annual income as a means of their livelihood.

  • Non-Administrator Ambulatory Surgical Facility means an Ambulatory Surgical Facility which does not meet the definition of an Administrator Ambulatory Surgical Facility.

  • CDBG means community development block grant.

  • Synchronous Optical Network (SONET) is an optical interface standard that allows inter-networking of transmission products from multiple vendors. The base rate is 51.84 Mbps (“OC-1/STS-1”) and higher rates are direct multiples of the base rate, up to 13.22 Gbps.

  • Nutrient management plan means a plan developed or approved by the Department of Conservation and Recreation that requires proper storage, treatment and management of poultry waste, including dry litter, and limits accumulation of excess nutrients in soils and leaching or discharge of nutrients into state waters.