Focal spot size definition

Focal spot size means the area of the target or anode that is bombarded by electrons from the cathode of the X-ray tube to produce X-rays. The smaller the focal spot, the better the limited spatial resolution of the X-ray system, especially in magnification mammography.
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Examples of Focal spot size in a sentence

  • Constant potential minimum 20 KHz frequency.3. Exposure timer of minimum 0.02 to 2 seconds.4. Focal spot size should not exceed 0.8 X 0.8 mm5.

  • 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 has been small (10 µm) and power has been up to 100 TW.

  • Focal spot size - the larger the focal spot the larger the penumbra which detractsfrom the detail.

  • Focal spot size is one factor that must be considered when selecting an x-ray tube for a specific application.

  • SB15, SB34, SB35, SB66, and SB67 are all in a work session as of this morning.

  • This shall be applicable for both 9MeV and 5MeV modes.(f) X-ray beam focal spot size Focal spot size shall be 2 mm or less diameter for both 5 MeV and 9 MeV energies and qualified according to EN 12543-2 or equivalent standards.(g) Radiographic Quality The Linac system shall demonstrate a radiographic image quality level of 1-2T or better sensitivity as per in ASTM E142 and ASTM E94-4 in steel of following thickness ranges.

  • Higher capacity would be given preference- Focal spot size - 0.6 mm- Collimation - Iris type with parallel & rotation compensation filters- Beam hardening filter to cut soft X-rays.

  • The Aged Accounts Receivable schedule indicates that of the$12,167.17 due from current residents, $8,374.44 (68.83%) is in the range of 0-30 days delinquent.

  • A careful examination of this staircase reveals that these rings are not planar, and can therefore not be Villarceau circles.

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