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Terbium-activated gadolinium oxysulfide is frequently used as a scintillator for x-ray imaging. It emits wavelengths between 382-622 nm, though the primary emission peak is at 545 nm. It is also used as a green phosphor in projection CRTs, though its drawback is marked lowering of efficiency at higher temperatures.
Between 1913 and 1950 radium-228 and radium-226 were used to activate a phosphor made of silver doped zinc sulfide (ZnS:Ag), which gave a greenish glow. The phosphor is not suitable to be used in layers thicker than 25 mg/cm 2, as the self-absorption of the light then becomes a problem. Furthermore, zinc sulfide undergoes degradation of its ...
Potassium fluorosilicate is a chemical compound with the chemical formula K 2 [SiF 6].. When doped with potassium hexafluoromanganate(IV) (K 2 [MnF 6], with Mn 4+) it forms a narrow band red producing phosphor, (often abbreviated PSF or KSF), of economic interest due to its applicability in LED lighting and displays.
The OCP Group (OCP S.A.) (formerly Office Chérifien des Phosphates) is a Moroccan state-owned phosphate rock miner, phosphoric acid manufacturer and fertilizer producer. [2] [3] Founded in 1920, the company has grown to become the world's largest producer of phosphate and phosphate-based products and it is one of the largest phosphate, fertilizer, chemicals, and mineral industrial companies ...
Melham told CBS News he used the instance as an example of what the drones may be looking for. "My point is, they are flying in a grid-like pattern, in my opinion, sniffing for something," he said.
Get sweaters on sale for the whole family during Nordstrom's Half-Yearly Sale; AOL. The best under-$50 clothing items to buy at Amazon right now; AOL. The best laundry detergent sheets of 2025; AOL.
A little dark chocolate can go a long way! A new study suggests that dark chocolate may have benefits in preventing the development of Type 2 diabetes, NPR reported. The study, published in The ...
The C was to indicate the powder burned "cooler" than traditional Improved Military Rifle (IMR) powders. [4] In 1949, he began acquisition of powder salvaged from disassembled Oerlikon 20mm cannon cartridges. This powder resembled IMR 4350 in appearance, and with a slower burning rate, was initially marketed as "4350 Data", and later as 4831. [5]