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9 Aug, 2019 21:35

Experimental ‘isotope & liquid-propellant’ engine blast kills 5 Russian nuclear experts – Rosatom

Experimental ‘isotope & liquid-propellant’ engine blast kills 5 Russian nuclear experts – Rosatom

Five staff of Russia’s nuclear corporation Rosatom were killed and three suffered serious burns in the blast during a test of a liquid-propellant engine that resulted in a brief spike of radiation around the military testing site.

The Rosatom engineering and technical team was working on the ”isotope power source" for a propulsion system on Thursday, when the accident happened. The blast caused a background radiation spike, which quickly returned back to normal.

“As a result of the accident at the military firing range in Arkhangelsk region during liquid reactive propulsion system tests, five employees of the state corporation Rosatom were killed,” the company said. Three military and civilian specialists remain in serious condition, but their injuries are “not life-threatening.”

It remains unclear what type of ‘experimental’ missile or jet engine was being tested. The secrecy around the failed military test and initial tight-lipped statements by the Defense Ministry immediately triggered conspiracy theories about authorities trying to conceal nothing less than a Chernobyl-scale incident.

A video of hazmat-suited specialists taking measurements on the helicopter that airlifted the burn victims only added fuel to rumors, even though the medical personnel was clearly visible unloading the injured without any additional precautions.

Adding to the confusion, social media were flooded with chilling photos and videos of a massive blast and a mushroom-like plume of black smoke – which came from a totally different incident in Siberia. On Monday, a depot of high-caliber tank and artillery shells in Russia’s Krasnoyarsk region was devastated by powerful explosions, resulting in one death and nearly two dozen injuries.

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The Arkhangelsk region site is one of the main research and development facilities for the Russian Navy, where sea-based ballistic, intercontinental, cruise and anti-aircraft missiles are being developed and tested. It is located some 30km west of the city of Severodvinsk, which is home to a major base of the Northern Fleet.


Severodvinsk authorities placed rescue services on high alert as measurements immediately after the incident showed background radiation levels three times above the safe limit of 0.6 microsieverts. In less than half an hour, however, they dropped back to normal – and the daily average remained within the norms, thus posing little risk for the population, city authorities said.

“We are monitoring [the radiation levels] around the clock. Over the last 24 hours, no change was witnessed,” Severodvinsk's city administration said Friday. Soil, air and water samples examined by a team of scientists lead by the federal Consumer Protection agency also found no abnormal radiation readings.

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