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visibility3miles
23rd Oct 2020, 05:58
I don't remember them checking for radiation levels prior to previous US election swearing-in ceremonies...
Is there something I should be aware of?

https://thehill.com/policy/energy-environment/521920-low-flying-helicopters-to-measure-radiation-levels-in-dc-before

Low-flying helicopters to measure radiation levels in DC before inaugurationBY MORGAN GSTALTER (https://thehill.com/author/morgan-gstalter) - 10/20/20 03:05 PM EDTLow-flying helicopters will be seen over downtown Washington, D.C., and the National Mall beginning on Monday to assess radiation levels in the city before the presidential inauguration on Jan. 20.

The Department of Energy’s National Nuclear Security Administration (NNSA) said in a statement (https://www.energy.gov/nnsa/articles/nnsa-conduct-aerial-radiation-measurements-over-washington-dc) that it will be conducting the flights to measure naturally occurring background radiation “as part of standard preparations to protect public health and safety on the day of the event.”

The flights will only occur during daylight hours in a grid pattern 150 feet above the ground at a speed of approximately 80 mph.

NNSA said in its release that the flights are “purely scientific in nature” and no surveillance will be conducted. It urged citizens not to become alarmed at the sight of the low-flying aircraft.

Similar flights often take place prior to newsworthy events that gather large crowds, including over Atlanta before the 2019 Super Bowl (https://www.energy.gov/nnsa/articles/nnsa-conduct-aerial-radiation-assessment-survey-over-atlanta-prior-super-bowl-liii) and over Charlotte, N.C., in August (https://www.energy.gov/nnsa/articles/nnsa-conduct-aerial-radiation-measurements-over-charlotte) prior to the Republican National Convention.

The twin-engine Bell 413 [sic] helicopter is part of the NNSA’s Nuclear Emergency Support Team and will be equipped with “sensitive, state-of-the-art passive radiation sensing technology,” according to a statement.

The NNSA’s Counterterrorism and Counterproliferation Program works to prevent and respond to a “terrorist or other adversary actor with a nuclear or radiological device,” according to the agency’s website. The program is designed to respond to stolen or misplaced radioactive materials, a nuclear weapon out of the control of a nation-state or an improvised nuclear device.

nomorehelosforme
23rd Oct 2020, 10:52
Here is the thread that discussed the same when it happened in Atlanta

https://www.pprune.org/rotorheads/617779-helicopters-doing-radiation-detection-ahead-super-bowl.html?highlight=atlanta

MikeNYC
23rd Oct 2020, 15:30
This happens regularly. NYC had a detailed scan a few years back, and NYPD's aircraft are also equipped with less-sensitive rad detectors that are constantly updating a map of background radiation.

Maoraigh1
23rd Oct 2020, 18:34
Knowing the background radiation will enable any new radiation source to be detected.