The phrase "a minimum beam of" is correct and usable in written English.
It can be used in contexts related to physics, engineering, or any discussion involving light or structural elements where a minimum measurement is specified.
Example: "To ensure safety, the design requires a minimum beam of 10 feet in width."
Alternatives: "a minimum width of" or "a minimum measurement of".
The main feature of the new Saura MF radar is the transmitting/receiving antenna which is arranged as a Mills Cross of 29 crossed half-wave dipoles with a minimum beam width of about 7°.
At a distance of 30 cm from the center of the focusing electrode of the einzel lens, Al1+ and Al2+ have a minimum beam diameter of ∼1.5 mm, while for Al3+ and Al4+ the minimum beam diameter is ∼2.5 mm.
A minimum beam diameter of 0.9 mm is achieved in the post anode region at a distance of 20 mm from the centre of cathode surface.
When the CO2 laser beam was focused with a 1-m radius of curvature mirror, it produced a minimum beam radius or a beam waist of 1.2 mm, and at a laser power of 50 W on the 10.6-μm emission line, a power density of 2.2 kwasm2 wachievedved.
To validate the specific energy absorption estimates, static compression experiments are also performed on specimens of 10%, 20%and30%0% relative density and minimum beam diameter of 300 µm made from stainless steel 316 L through selective laser melting.
An HF2000 (Hitachi, 200 kV) was used for transmission electron microscopic (TEM) observations and Vantage (Noran, a minimum analytical beam size of ϕ1 nm) attached to the TEM apparatus enabled energy dispersive X-ray spectroscopy (EDXS) measurement.
Figure 2 shows a picture of the set-up and a schematic representation of the minimum beam diameter that varies with the distance between the X-ray source and the object.
Right schematic representation of the minimum beam diameter in μm and the distance between the X-ray source and the object in mm.
The minimum beam spot size achieved so far is 14 × 6 μm2 for a 20 MeV proton beam at a beam current of 0.1 nA.
Fabrication tolerances for modern e-beam lithography are usually assumed to be a minimum of about 5%to10%0% of the nominal target dimensions.
