Gas mantle - Wikipedia
An incandescent gas mantle, gas mantle or Welsbach mantle is a device for generating incandescent bright white light when heated by a flame. The name refers to its original heat source in gas lights which illuminated the streets of Europe and …
Incandescent Gas Lantern Mantles - Museum of Radiation and …
The thorium-containing incandescent mantle was invented in 1884 by Carl Auer von Welsbach, an Austrian chemist, and it is sometimes referred to as a “Welsbach mantle” or “Auerlicht.” This invention resulted in the first commercial use of the element thorium.
The Radioactivity of Thorium in Lanterns
The radioactive properties that lanterns possess come about in the manufacturing process when the mantles are being made and coated with various things to make it glow brighter and longer. The mantle is the bag looking object that sits in the middle of the lantern and produces a bright light when heated by flame.
Sources for Thorium Mantles? - The Coleman Collectors Forum
2021年3月1日 · The only way to be sure that mantles contain thorium is to use a radiation meter. I’ve sampled mantles from china and some are hot and some are not. I’ve also sampled mantles listed as thoriated that were barely above background.
The Radioactivity of Thorium Incandescent Gas Lantern Mantles
2021年2月1日 · The activity of thorium was investigated for the five different types of mantle (masses 1.320 to 3.490 g), with 232 Th activity ranging from 5.1 ± 1.31 to 16.33 ± 1.92 Bq/mantle. Samples M1 to M4 were low in radioactivity, compared to mantles M5 which recorded a relatively high 232 Th activity, at 12,517 ± 1173 Bq/mantle ( Table 1 ).
Thorium / Radioactivity in Coleman Mantles - Classic Pressure …
2022年8月14日 · There isn't any Thorium in the Coleman Gold Top mantles. All currently produced Coleman mantles are non-radioactive, the #21A included. The older Coleman Silk Lites are thoriated.
Actively seeking thorium mantles - Classic Pressure Lamps
2014年11月8日 · I'm actually seeking thorium mantles. I see vintage mantles on the bay, and wonder which (if any) were treated with thorium. Is anyone out there keeping track? I'd like to use them in my barn lanterns where the brightness would be handy, and there's plenty of ventilation.
How Gas Lanterns Work - HowStuffWorks
The mantles are a ceramic mesh that encase the flame produced by the lantern. Typical mantles look like this: Mantles start out as silk fabric sacks impregnated with different oxides. The standard for decades has been the Welsbach mantle, which uses a mixture of thorium oxide, cerium oxide and magnesium oxide.
The Thorium Lantern: Your Opportunity for Retail Radiation ... - Gizmodo
2012年3月2日 · Incandescent gas mantle lanterns work by using kerosene as a fuel to light a mantle, a bag of cloth covered in metallic salts. These salts are oxidized in the presence of a flame, yielding a...
The Radioactivity of Thorium Incandescent Gas Lantern Mantles
2021年2月1日 · The use of thorium in providing the intense white luminescence emitted from gas mantles, has a history of some 130 years, the initial application pre-dating by several decades large-scale urban...
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