Examples of 'focal spot' in a sentence
Meaning of "focal spot"
In the context of imaging technology like X-rays, it refers to a specific point or area where the radiation beam is focused. It represents the location where the imaging device produces the clearest and most detailed image
How to use "focal spot" in a sentence
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focal spot
The focal spot produced is relatively large.
Resolution improved thanks to a small focal spot.
Due to this no focal spot is inferred.
A certain quantity of electrons is emitted by the focal spot.
Focal spot of power on the.
Hence the position of the focal spot may be determined accurately.
Focal spot size.
Effective focal spot.
The focal spot has a size of roughly half a pixel size.
The secondary radiation may not be emitted solely by the focal spot.
The focal spot should be monitored through a quality assurance program.
Consequently a misalignment of the focal spot does not significantly influence the heat transfer.
A secondary ray is carried by any straight line projected from the emitting focal spot.
Thus a focal spot is obtained whose dimension in the axial direction is small.
The wavefront transmitted by the treatment transducer is such that its focal spot is elongated.
See also
The length of the focal spot is less than the length of the transducer.
The device may comprise adjustment means for positioning the focal spot in the skin.
The radius of the focal spot can be defined in more than one ways.
These were all monofocal intraocular lenses which provided only one focal spot to the eye.
The effective focal spot is always larger than the actual focal spot.
Fiber transmission, no need to adjusted the optical circuits, focal spot is more smaller.
The length of the focal spot is measured along the axis of the acoustic beam.
Moreover, it has the effect of increasing tissue temperature around the focal spot.
By translating the focal spot through a bulk transparent material the waveguides can be directly written.
The wavefront of the converging beam close to the focal spot 10 is substantially spherical.
The focal spot can move in one plane, or it can also move in space.
This second type of aberration increases the focal spot radius with decreasing numerical aperture.
The focal spot size achievable with any propagating wave energy, depends on wavelength.
Second, the exact location of the focal spot is difficult to determine ahead of time.
Thus, the variations in the tube fixing part cause shifts in the focal spot.
This angle data can be used in focal spot location calculation and therefore, tomographic imaging.
Preferably, the pellet or bead is formed to have a spherical or pseudo-spherical focal spot geometry.
According to the invention, the position of the focal spot from transducer 1 varies during treatment.
The relative position of the first and second components determines the depth of focal spot 12.
Once C0 is established, the focal spot is then moved toward the expected final location.
With this configuration the beam 's contrast was greatly increased and a sharp focal spot was achieved.
Focal spot diameter and interval are adjustable . Patient 's unique needs can be met during treatment.
The aforesaid phenomena result in broadening of the focal spot formed by the central ray 72.
Furthermore, the optical focusing system allows focusing of the laser beam to a small focal spot.
The focal spot is circular or oblong ;.
These strips are oriented convergently towards the focal spot of the X-ray tube.
This focal spot therefore has the shape of a " thick line ".
Primary radiation: all radiation coming directly from the focal spot of an X-ray tube.
Such a focal spot is less suitable for scanning the record carrier 21.
The welding is done by means of mono or multi-spot ( impact ) focal spot.
First, the achievable focal spot size is not much smaller than 5 millimeters.
In all cases, the radiation-emissive zone is designated as the focal spot.
Marginal note, Maximum deviation - focal spot to image receptor.
The ultrasound waves delivered by the piezoelectric elements 21 to 2m are concentrated into a focal spot.
FIG . 3 is an illustrative focal spot inside a part generated by a focusing transducer ;.
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