The information provided on this website is provided for reference purposes only. It is my personal development blog, and is not intended to act as an educational lr advisory tool…
For a WR-650 waveguide at the 1420 MHz hydrogen line, the internal dimensions need to be about 165 mm × 82.5 mm (6.5″ × 3.25″). That means you’re looking for…
Yes, a pyramidal horn antenna can generally be made larger by adding an additional flared section to the front, but there are some important caveats. A horn antenna works by…
If your 1420 MHz rectangular waveguide feed has a probe with a bulbous, paddle-shaped, or capacitive end, that feature is usually intended to broaden the impedance match rather than dramatically…
https://www.ece.mcmaster.ca/faculty/nikolova/antenna_dload/current_lectures/L18_Horns.pdf
A perk of SARA membership that we can use the 20m Skynet dish. The angular size of the Andromeda Galaxy (M31) depends on how faint an outer region you include:…
Using medium-format lenses on a full-frame A-mount body like the Sony Alpha A99 is a niche but very enjoyable setup if you like manual focus, unusual rendering, and superb central…
For two identical horizontal scintillators of size 5 x 5 cm, the coincidence rate drops as detector spacing increases because the allowed angular acceptance narrows. A useful estimate is: tan(theta_max)…
Yes — there have been a few measurements and discussions of temperature effects in CosmicWatch-style scintillator/SiPM muon detectors, though not many formal dedicated studies. The main effect is usually not…
There are several major types of cloud chamber and related particle-track detectors. They all work by making charged particles visible as trails. 1. Diffusion cloud chamber This is the most…
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