focal spot size

fo·cal spot size

(fō'kăl spot sīz),
The measured size of a focal spot of an x-ray tube, a function of the actual size of the cathode and the angulation of the anode surface. See: focal spot.
References in periodicals archive ?
The Feinfocus inspection system offers sub-micron defect detection and a small focal spot size.
Even at such high magnifications the latest 1000 x 1000 pixel detectors can easily resolve the resulting x-ray images, so image resolution depends almost entirely on focal spot size of the x-ray source.
Options such as focal spot size, target angle, insert or housing type, pixel size, and frame rate, are a few of the filter and sorting capabilities available that help to deliver the right product recommendations.
Variofocus is an extraordinary small, in-performance variable focal spot size X-ray system developed by YXLON engineers.
decrease the laser focal spot size to match the target as it is compressed.
The phantom was imaged at 40 kV using the small focal spot size.
Resolution was assessed using MTFs, calculated from images acquired at 40 kV using the small focal spot size.
Variofocus is an extraordinary small, inperformance variable focal spot size X-ray system developed by YXLON engineers.
The penetration depth in laser welding is proportional to the power density of the laser beam and is incident function between the focal spot size and its power.
He said the US was concentrating on beam science to reduce focal spot sizes, which would result in lower driver energy requirements and thus provide "large reductions in the projected size and cost of induction linac drivers for IFE.
The exceptional beam quality and stability will enable to use focusing techniques to prepare submicron beam sizes at the sample position with focal spot sizes down to 50 nm.

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