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It is also used as a green phosphor in projection CRTs, though its drawback is marked lowering of efficiency at higher temperatures. Variants include, for example, using praseodymium instead of terbium ( CAS registry number 68609-42-7 , EINECS number 271-826-9), or using a mixture of dysprosium and terbium for doping (CAS number 68609-40-5 ...
The overall process of using a radioactive material to excite a phosphor and ultimately generate light is called radioluminescence. As tritium illumination requires no electrical energy, it has found wide use in applications such as emergency exit signs , illumination of wristwatches, and portable yet very reliable sources of low intensity ...
Many phosphor powders are produced in low-temperature processes, such as sol-gel, and usually require post-annealing at temperatures of ~1000 °C, which is undesirable for many applications. However, proper optimization of the growth process allows manufacturers to avoid the annealing.
White phosphorus was used by Fenian (Irish nationalist) arsonists in the 19th century in a formulation that became known as "Fenian fire". [3] The phosphorus would be in a solution of carbon disulfide; when the carbon disulfide evaporates, the phosphorus bursts into flames. [4]
This is the scenario Americans could face in Trump’s second term. Under Trump, Christian nationalists will have unprecedented access to the power of the federal government. Trump’s GOP has ...
Laura-Jane Seaman, 36, died after ‘multiple missed opportunities’ to treat a peritoneal hemorrhage, according to the coroner's report
UPDATE: Though Paramount initially reported that 10.1 million average viewers tuned into the Golden Globes using data from VideoAmp — which would have marked a 7% increase from last year’s 9.4 ...
A variety of SiAlON phosphor powders under UV light SiAlON ceramics have found extensive use in non-ferrous molten metal handling, particularly aluminium and its alloys, including metal feed tubes for aluminum die casting, burner and immersion heater tubes, injector and degassing for nonferrous metals, thermocouple protection tubes, crucibles ...