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Originally posted by SelfSustainedLoner
Uh. Gamma Ray's? Any idiot knows you can't make gamma ray's unless you have a supernova...
The back end of the nuclear fuel cycle, mostly spent fuel rods, contains fission products that emit beta and gamma radiation, and actinides that emit alpha particles, such as uranium-234, neptunium-237, plutonium-238 and americium-241, and even sometimes some neutron emitters such as californium (Cf). These isotopes are formed in nuclear reactors.
Radioactive medical waste tends to contain beta particle and gamma ray emitters. It can be divided into two main classes. In diagnostic nuclear medicine a number of short-lived gamma emitters such as technetium-99m are used. Many of these can be disposed of by leaving it to decay for a short time before disposal as normal waste. Other isotopes used in medicine, with half-lives in parentheses, include:
Certain radioactive elements (such as plutonium-239) in “spent” fuel will remain hazardous to humans and other creatures for hundreds of thousands of years. Other radioisotopes remain hazardous for millions of years.
Radioactive wastes are wastes that contain radioactive material. Radioactive wastes are usually by-products of nuclear power generation and other applications of nuclear fission or nuclear technology, such as research and medicine. Radioactive waste is hazardous to human health and the environment, and is regulated by government agencies in order to protect human health and the environment.
Radioactivity diminishes over time, so waste is typically isolated and stored for a period of time until it no longer poses a hazard. The period of time waste must be stored depends on the type of waste. Low-level waste with low levels of radioactivity per mass or volume (such as some common medical or industrial radioactive wastes) may need to be stored for only hours, days, or months, while high-level wastes (such as spent nuclear fuel or by-products of nuclear reprocessing) must be stored for thousands of years. Current major approaches to managing radioactive waste have been segregation and storage for short-lived wastes, near-surface disposal for low and some intermediate level wastes, and deep burial or transmutation for the long-lived, high-level wastes.
For instance iodine-131 is a short-lived beta and gamma emitter, but because it concentrates in the thyroid gland, it is more able to cause injury than caesium-137 which, being water soluble, is rapidly excreted in urine.
Who has a gieger counter? Anyone on ATS keep this particular piece of equipment in their glovebox? Nah me either.
A roadmap toward decommissioning of the damaged Fukushima Daiichi nuclear power plant indicates that the removal of melted nuclear fuel rods at the plant may begin in 10 years.
The work is considered to be the most important phase in the decommissioning process. The roadmap indicates that removal will start in 2021 if technology essential for the work has been developed before that.
Japan may have no nuclear reactors running by May next year should the round of tests announced by the government this week cause further delays to restarting units idled for maintenance, a Bloomberg survey shows. Shikoku Electric Power Co. today said it delayed starting a reactor that was due to resume in two days. About two-thirds of Japan’s 54 reactors have been shut down by the March earthquake and tsunami or because of regular checks, leading to power- saving measures in parts of the country.
Workers at the Grand Gulf Nuclear Plant in Port Gibson, Miss., last Thursday released a large amount of radioactive tritium directly into the Mississippi River, according to the US Nuclear Regulatory Commission (NRC), and experts are currently trying to sort out the situation. An investigation is currently underway to determine why the tritium was even present in standing water found in an abandoned unit of the plant, as well as how much of this dangerous nuclear byproduct ended up getting dumped into the river. Many also want to know why workers released the toxic tritium before conducting proper tests.
Wednesday night’s extreme winds in the southern U.S. cut power to the Tennessee Valley Authority’s Browns Ferry nuclear plant, causing all three units to shut down.
Two units were operating at full power and another at reduced power when the outage tripped the plant’s safety systems at 4:36 p.m., according to a TVA release. Seven of eight backup diesel generators ensured cooling systems continued operation, and crews worked Thursday to bring online the eighth generator, which was down for maintenance.
Unit 3 achieved cold shutdown at 2:43 a.m., Thursday, followed by unit 2 three hours later. Unit 1 was still being cooled as of late Thursday morning.
Station blackouts are among the safety topics currently under evaluation by the NRC in response to the ongoing Fukushima Daiichi accident in Japan. In a briefing on the NRC’s efforts, Chairman Gregory Jaczko said Thursday in a prepared statement:
"Severe storms in the South last night provided a stark reminder that we are not immune to the effects of natural events. Last night, Browns Ferry nuclear power plant experienced a loss of nearly all offsite power to the three units, resulting in shutdown. All safety functions performed as designed. All available emergency diesel generators started and loaded and emergency core cooling systems are operating normally. Spent fuel pool cooling is currently in service. The plants’ conditions are stable and are being placed in a cooled-down condition."
Would make CIA sense though, throwing in a few gamma ray leaks in densely populated areas to kill off a few hundred thousand more...
Originally posted by thedman
real Pain in the ass getting duct tape off before cleaning as tape would gum up machines
Originally posted by samlf3rd
Wtf? So, it's okay as long as you post a sign on the vehicle...
This thing should've been escorted to keep everyone safe.
Originally posted by muzzleflash
We are probably exposed to any various sources of radiation (man-made) unwittingly every week. Like pointed out before, even household items like fire detectors contain radioactive material and have warning symbols on them. Also, there are tritium Exit signs or wrist-watches all over the place these days, and they contain dangerous material as well. Eventually many of these things break or fall into disrepair.
Uranium glass is glass which has had uranium, usually in oxide diuranate form, added to a glass mix prior to melting. The proportion usually varies from trace levels to about 2% by weight uranium, although some 19th-century pieces were made with up to 25% uranium.
Originally posted by muzzleflash
But we need to focus on creating long term solutions, like transmuting the materials into safer materials, or finding a cheap safe way to put the material on a space ship and drop it into the sun.
Originally posted by SelfSustainedLoner
reply to post by camaro68ss
Uh. Gamma Ray's? # this thread.. Any idiot knows you can't make gamma ray's unless you have a supernova...Even if a tanker full of spent nuclear fuel can't produce gamma rays. Gamma rays travel faster then the speed of light for # sake. What the # kind of post is this???edit on 9-7-2011 by SelfSustainedLoner because: (no reason given)
Originally posted by Bedlam
so it's likely someone's already responded,
Originally posted by die_another_day
reply to post by SelfSustainedLoner
Nothing travels faster than light. As far as we know.
And also, these "rays" aren't anything special. This means that waves from all kinds of sources that have sufficient energy can all be classified as Gamma rays.
Waves are waves, they just differ in frequency and orientation of propagation.
The radiation detected by the Geiger counter may be alpha, beta, or gamma. (all different levels of frequencies from different subatomic interactions and decays)
Originally posted by die_another_day
Nothing travels faster than light.....
Originally posted by zorgon
Micro waves... from TV and radio towers, from the cell phone you hold to your ear that has been proven to kill brain cells from longer exposure (so if you talk on the phone a lot ... )
Older microwave ovens leak, yet people stand in front of them
X-Ray machines... every dentist and medical facility has them. The techs leave the room and have you wear lead shielding... but those gamma rays leave the building and go somewhere
The new Airport X-ray scanners... DHS says its safe with a yearly dose limit. But they forget to include all the other rays you get and what about the accumulation in frequent fliers? The airlines are killing off their best customers first
Depression Glass that pretty green, pink or blue antique collectors glassware from the depression era. The green is also known as uranium glass because that beautiful green color that glows under UV light is created by uranium salts. The blue is cobalt, forget what the oink was but its not as 'hot'
So... your getting cooked just sitting at home Maybe all that radiation is why we are getting longer lifespans in modern times?
That Fukushima radiation is already showing up in our food supplies (albeit in small amounts, but it is measurable) Chernoble's coffin is falling apart so that will be an issue soon...