North Hollywood High School Nuclear Radiation Test to see how far gamma rays penetrates a school which is still in use to this day!

EXPERIMENTAL EVALUATION OF THE FALLOUT-RADIATION PROTECTION PROVIDED BY SELECTED STRUCTURES IN THE LOS ANGELES AREA February 26, 1963

“An experimental study designed to provide a basis for estimating protection against fallout
radiation was conducted on four diversified structures in the Los Angeles, Calif., area. This
study was sponsored by the Civil Effects Test Operations (CETO), Division of Biology and
Medicine, U. S. Atomic Energy Commission. The four buildings studied were (1) the Laboratory of Nuclear Medicine and Radiation Biology at the University of California at Los Angeles
(UCLA); (2) a family fallout shelter; (3) the communications section of the Los Angeles Police
Department building; and (4) a typical classroom located at North Hollywood High School.

A fallout radiation field was simulated by the Mobile Radiological Measuring Unit. The
unit employed a single radioactive Co 60 source, which was pumped at a uniform speed through
a long length of tubing evenly distributed over the area of interest. Measurements of the radiation levels at selected points inside the structures were made with highly sensitive ionization chamber detectors. Protection factors ranged from 10 to 2000 in the UCLA building, up to 10,000 in the family fallout shelter, from 50 to 150 in the communications section of the police
building, and from less than 10 to approximately 20 in the high school classroom.”

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Ibid, p.61

 

ibid. p 26

Editors note: Here is an example of a crime against Humanity.

Here are a bunch of enthusiastic trusting people allowing themselves to be needlessly exposed to gamma radiation from this device that was used to spread the radiation by having a capsule of Cobalt 60 in a large length of firehose with 120 gallons of water pushing the radioactive capsule through the firehose. Later in their work, they used an antifreeze solution in order to make it work better. They would dump the antifreeze directly into sewers when they were done. I do not know if they used the antifreeze solution in this test.

It is stretched out on the lawn of the Ambassador Hotel in Los Angeles and they had geiger counters to show the radiation emitted from this location. The radiation produced could range from 100 mc to 300 curies of radiation.

This method of irradiation was much more civilized than mixing the isotopes in a portable cement mixer with sand to spread it over buildings, lawns, and streets by using either a lawn spreader like you have to spread fertilizer on your lawns or a machine that spread it over large areas such as San Bruno Naval Base, Camp Stoneman in Pittsburg California, Camp Parks in Dublin California and a Fort Belvoir in Fairfax county Virginia where they used Strontium 90 to conduct their tests to 30,000 Roentgen of radiation making sure that at the edge of the facility the radiation level was only 2000 Roentgens. 30,000 Roentgens is the amount of radiation at Ground Zero after 1 hour of an Atomic bomb blast. 1 Roentgen = 1 rad but Roentgens measure how much radiation is absorbed by the body so it is far more accurate.

In the mid 60’s someone at the Atomic Energy Commission and the Navy realized that hey you know we don’t have to spread radioactive substances onto buildings, streets and yards, we can just use a different colored sand and then count the sand grains instead of causing cancer on the local population.

These sites are NOT on the EPA superfund lists.

The Navy Nuked Itself in Operation Crossroads Baker Test

Operation Crossroads (1946) was two atomic bomb tests where the second one was exploded under water creating a radioactive steam cloud that spread over all of the ships, including the support ships thus irradiating about 80% of the US Pacific Fleet at the time. The Navy had set up a set of Target Ships including the Saratoga and Independence Aircraft Carriers to see what effect a nuclear explosion would have on the ships. The explosion irradiated the water in the lagoon the equivalent of 5000 tons of radium.

Unfortunately they miscalculated and thus irradiated all of the ships present which had to be cleaned immediately to be put back in action. Thus the ships had to go to US Ports and be cleaned by sandblasting and the Navy decided to dump the contaminated sandblast sands directly into the harbors of the Navy Bases. 145 out of 207 ships were sent to be decontaminated, the others were scuttled. Airplanes were sent to their respective bases to be washed down.

Photo by Pixabay on Pexels.com

The Navy entered the Lagoon with the support ships but had to retreat when the radiation levels exceeded the fatal level and the ships ran out, some went out to sea to escape. One hour after the blast the Battleship “New York” had a reading of 1200 r/hr which is 3 times the fatal dose. Here is a video of the scene, showing the support ships wash down the decks of the target ships like it was a carwash, the sailors completely unaware of the danger of a nuclear blast. https://youtu.be/BKH437o14vA

145 out of 207 ships were sent to be decontaminated, the others were scuttled. There were also airplanes that were affected and they had to return to their bases to be decontaminated. The ships were sent to the following ports to be cleaned:

  • Bremerton and Puget Sound
  • Guam/Marianas
  • Hunters Point Shipyard – San Francisco
  • Kwajalein
  • Mare Island
  • New Orleans
  • Norfolk
  • Los Angeles
  • Pearl Harbor
  • San Diego
  • San Pedro
  • Terminal Island
  • The Caroline Islands
  • The Philippines
  • Treasure Island – San Francisco

The ships had to be sandblasted to remove the paint in order to clean the ships. Because the non target ships used their pumps and hoses to clean the other ships or operated inside the lagoon, their water lines, pumps and evaporators (used to produce clean water) were contaminated and in most cases they could clean them with acid which was also dumped directly into these harbors. At the time the Navy was only concerned with the effects of the acids dumped into the harbors and they really didn’t care about dumping radiation into the water where civilians fish. One thing they found out fast was that copper piping tends to hold the radiation directly in the copper and so those systems had to be scrapped and all the copper piping had to be replaced.

In 1989 the EPA put out a report on the cleanup of Mare Island, Alameda Air station and Hunters Point and they state that they used samples that dug in 4 inches deep to determine radiation. They cleared all of these bases for nuclear radiation. Problem is that in order to fool a geiger counter all you need is a few feet of dirt. You can cover it up all you want, the radiation is still there. Also to test for Alpha and Beta Particles you have drill down and bring up a core of the materials which are them chemically separated to isolate the radioactive elements and then determine the radioactivity based on the contents, not a geiger counter.

Here is the official video of the project: https://archive.org/details/MISC1323OperationCrossroads1948
No description at the National Archives. Castle Films produced this film for the U.S. military — “Operation Crossroads” US Army film # MISC-1323 and US Navy film # MN 5345. Description from Armed Forces Films for Public and Television Use: “A documentary of the Able and Baker blasts of the Atomic Bomb Test at Bikini, produced by Joint Army-Navy Task Force One.”
National Archives Identifier: 88210 source file isn’t in the greatest shape.

Video detailing the Nuclear safety at the blast. Notice the officers checking the status of their geiger counters using a radiation source. Similar sources were found buried at San Francisco’s Treasure Island thus causing the site to become an EPA Superfund Nuclear Radiation Site.

Video link and information from Internet Archive. Uploaded by Periscope Films: https://archive.org/details/73862RadiologicalSafety