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UPDATE: 5 Rosatom employees died due to the fire at Nenoksa, according to Interfax and RIA Novosti. Rosatom says they were working on "изотопных источников питания, разработанных для жидкостной реактивной установки" 1/2 interfax.ru/russia/672243
2/? That translates as "Isotope source power supplies, developed for a liquid reactive engine"
an изотопный источник is a sealed radiation source, so a capsule of radioactive material, such as Strontium-90, Cesium-137, Plutonium-238, etc.
an изотопный источник is a sealed radiation source, so a capsule of radioactive material, such as Strontium-90, Cesium-137, Plutonium-238, etc.
3/? In this case, the source is being used as a power supply, possibly as a radioisotope thermoelectric generator or for heating the liquid in the engine so that it boils/ignites. Or perhaps something entirely different.
4/4 жидкостная реактивная установка is less clear to me.
It's either some sort of liquid-fueled jet engine, or a liquid-propellant rocket of some sort.
Translation assistance and opinions are welcome.
It's either some sort of liquid-fueled jet engine, or a liquid-propellant rocket of some sort.
Translation assistance and opinions are welcome.
Notes from @CherylRofer. @mgubrud also noted that an RTG-driven stirling engine was proposed for a US long-endurance drown.
