IRRSO

International registry of Radiation Safety Officers


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October 8-12, 2018

 

Was British scientist who first linked Russia to Litvinenko’s assassination another victim of Kremlin killers?

Leo Szilard's Fight to Stop the Bomb

Turning DOWN radiation levels during normal radiotherapy treatment sparks a 'seek and destroy' mission by body's immune system to target cancer cells

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A spa where patients bathe in radioactive water

Radium contamination in water most widespread in Texas, environmental group says

X-Rays Made with Scotch Tape: Unwinding Scotch tape produces enough radiation to image a human finger. A View from Katherine Bourzac

Particle Accelerator Reveals Secrets of Ancient Mummy

Treatment of Cancer and Inflammation With Low-Dose Ionizing Radiation

South Korea detects radioactive gas from North Korea bomb test

New hostel opens in the most radioactive place on the planet

Mysterious 'Star Wars blaster fire' sound is heard coming from the Northern Lights and travelling through power lines

Reindeer Are Still Very Radioactive 30 Years After Chernobyl

Norway Nuclear Reactor Leaks Radioactive Iodine: Officials

TVA’s Watts Bar Unit 2 achieves commercial operation

“Command and Control”: The day Arkansas was almost nuked

Nuclear accident in New Mexico ranks among the costliest in U.S. history

It's hot: Chernobyl now a tourist zone

Brussels suspects linked to nuclear facility plot

Leaking Beachfront Nuclear Reactor Near Miami Threatening Florida Everglades

 

 

 

The History Hour: The Posioning of Litvinenko

Three Mile Island nuclear plant will close in 2 years, owner says

December 2017 Food Irradiation Update

Tunnel collapse at Hanford Nuclear site, emergency declared

Judge: Feds must move plutonium from Savannah River Site

Weapons Physicist Declassifies Rescued Nuclear Test Films

FROM RUSSIA WITH LOVE? Dangerous radioactive particles have been detected across Europe and no-one knows where they came from

Restored Hawker Hurricane to Take to the Skies Again

Reactor shut down after nuclear plant explosion

Incredibly high radiation levels discovered at crippled Fukushima plant

The Pope of Physics: Enrico Fermi and the Birth of the Atomic Age

Welcome to 'the Most Toxic Place in America'

This fall, the “Radioactive Boy Scout” died at age 39

October 2016 Food Irradiation Update

Nuclear gauge reported stolen in West Virginia

 

 

 

 

 

 

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Fukushima Crisis Updates

Today In Radiation Safety History

On May 16, 1960 the laser was successfully fired for the first time. In a July 7, 1960 press conference in Manhattan, Theodore Maiman and his employer, Hughes Aircraft Company, announced the laser to the world. Maiman was granted a patent for his invention, and he received many awards and honors for his work. Maiman's experiences in developing the first laser and subsequent related events are described in hi

On May 17, 1983 the Oak Ridge Mercury Task Force published their findings of their investigation.

The primary material used in thermonuclear weapons was a form of hydrogen fuel known as lithium deuteride, produced from the lithium-6 isotope. Naturally occurring lithium contains about 7 percent of the lithium-6 isotope, while the rest of it is the lithium-7 isotope. In the 1950s, the Y-12 Plant developed, designed, constructed, and operated an industrial scale production process to separate and enrich the lithium-6 isotopes from lithium-7 isotopes for the production of lithium deuteride.


The separation process that produced most of the lithium deuteride was called Colex, a column-exchange process, in which the lithium isotopes were separated as the lithium was transferred between two chemical phases. One of the phases was an aqueous solution of lithium hydroxide and the other a lithium amalgam, a solution of lithium in mercury. The lithium-6 isotope dissolved more thoroughly in mercury than lithium-7. Lithium amalgam remained in a stable state while in contact with an aqueous solution. In other words, the lithium-6 atoms migrated to the amalgam and the lithium-7 atoms adhered to the lithium hydroxide in the aqueous fluid. Cold War production schedules of lithium deuteride required millions of pounds of mercury, and President Eisenhower authorized Y-12 to use a significant portion of the mercury from the National Stockpile for the Colex process from 1955 to 1963.

It was during this process up to 24 million pounds of mercury was used of which 2 million pounds were lost to the environment. According to a 2016 Department of Energy report the cleanup could cost the tax payers up to 3 billion dollars.