Ykköslinkissä wikiartikkeli majakoiden virtalähteestä. Kakkoslinkin lainauksessa on esitetty virtalähteen toimintaperiaate, jossa ydinsäteilyllä tuotettu lämpöenergia muutetaan termoparilla (thermocouple) sähköksi. Tiedä hienostuneisuudesta, mutta neuvostovirolaista avaruustekniikkaa, kuten kakkoslinkin tekniikan lähinnä länsisovelluksista ilmenee.
"The Beta-M is a radioisotope thermoelectric generator (RTG) that was used in Soviet-era lighthouses and beacons.
The Beta-M[2] contains a core made up of strontium-90, which has a half-life of 28.79 years. The service life of these generators is initially 10 years, and can be extended for another 5 to 10 years.[1] The core is also known as radioisotope heat source 90 (RHS-90). In its initial state after manufacture, the generator is capable of generating 10 watts of electricity.[3] The generator contains the strontium-90 radioisotope, with a heating power of 250W and 1,480 TBq of radioactivity – equivalent to some 280 grams (9.9 oz) of Sr-90.[4] Mass-scale production of RTGs in the Soviet Union was the responsibility of a plant called Baltiyets, in Narva, Estonia.[5]"
Katso liite: 91606
Katso liite: 91605
Diagram of the soviet radio-thermonuclear generator "Beta-M".
[1]
Black: Framework
Blue: Outer radiation protection
Yellow: Heat isolation
Orange: Inner radiation protection (Tungsten)
Red: Radionuclide heat source (Strontium-90)
Pink: Thermoelectric unit
Mounted above the assembly are fins for cooling, outlined in black.
en.wikipedia.org
"A radioisotope thermoelectric generator (RTG, RITEG), sometimes referred to as a radioisotope power system (RPS), is a type of nuclear battery that uses an array of thermocouples to convert the heat released by the decay of a suitable radioactive material into electricity by the Seebeck effect. This type of generator has no moving parts and is ideal for deployment in remote and harsh environments for extended periods with no risk of parts wearing out or malfunctioning."
en.wikipedia.org
"Termopari (eli lämpöpari, termoelementti) on kahden eri metallin liitoksessa syntyvään, lämpötilasta riippuvaan jännitteeseen (lämpösähköinen ilmiö) perustuva lämpötila-anturi.[1] Saksalainen Thomas Seebeck keksi ilmiön vuonna 1822."
fi.wikipedia.org