Radioactive materials are those that have an unstable nucleus. The nucleus breaks down by giving off alpha particles, beta particles and gamma rays, all of which can be dangerous.
The materials are available to hospitals for treatment(cancer) and to labs and universities for research
2007-03-20 10:24:09
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answer #1
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answered by science teacher 7
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Radioactive materials are those natural or man made substances that emit either particulate radiation (alpha and beta rays) or electromagnetic radiation (gamma rays), which are ionising. Examples are uranium, thorium, radium, plutonium, polonium, radon, I 131, K 40 etc.
Some of the naturally occuring minerals are also slightly radioactive. In fact, there is some background radiation at any part of the world but it varies from place to place. X-ray tubes also emit high energy radiation which is similar to gamma rays.
Exploration, mining, concentration etc. of such materials is covered by the Atomic Energy Act in India.
Radioactive isotopes are supplied for those who have a valid licence to stock them and use them for education, research, medical applications etc.
In India, BARC is the licensing agency if you want to buy radioisotopes.
Visit http://www.dae.gov.in and http://www.barc.gov.in for more details.
2007-03-21 01:55:51
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answer #2
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answered by Swamy 7
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If you, as a private citizen, want any sort of radioactive material, go out and buy red-orange "Fiestaware" (plates, platters, water pitchers and such), produced between 1936-1943, as well as some very old decorative glassware, each of which used uranium in the coloring. Uranium is naturally radioactive. The levels won't be enough for you to use for anything, but it will be radioactive.
2007-03-20 16:30:23
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answer #3
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answered by William 3
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Radioactive material is that material that emits 3 invisible types of rays-
1.alpha rays (positively charged)
2.beta rays (negatively charged)
3.gamma rays (no charge)
You can get a radioactive material from any lab.But take it in a safety box or lead box as it absorbs gamma rays and reflects all other rays.The gamma rays are very harmful and fatal to us.They can even pass through a 5cm wall!
2007-03-21 01:19:26
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answer #4
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answered by harsh_goyal28 2
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Radioactive waste are waste types containing radioactive chemical elements that do not have a practical purpose. It is sometimes the product of a nuclear process, such as nuclear fission. The majority of radioactive waste is "low-level waste", meaning it has low levels of radioactivity per mass or volume. This type of waste often consists of used protective clothing, which is only slightly contaminated but still dangerous in case of radioactive contamination of a human body through ingestion, inhalation, absorption, or injection.
In the United States alone, the Department of Energy states that there are "millions of gallons of radioactive waste" as well as "thousands of tons of spent nuclear fuel and material" and also "huge quantities of contaminated soil and water".Despite these copious quantities of waste, the DOE has a goal of cleaning all presently contaminated sites successfully by 2025.The Fernald site in Ohio for example had "31 million pounds of uranium product", "2.5 billion pounds of waste", "2.75 million cubic yards of contaminated soil and debris", and a "223 acre portion of the underlying Great Miami Aquifer had uranium levels above drinking standards".The United States currently has at least 108 sites it currently designates as areas that are contaminated and unusable, sometimes many thousands of acres(&DOE)The DOE wishes to try and clean or mitigate many or all by 2025, however the task can be difficult & it acknowledges that some will never be completely remediated, and just in one of these 108 larger designations, Oak Ridge National Laboratory, there were for example at least "167 known contaminant release sites" in one of the three subdivisions of the 37,000 acre site. Some of the U.S. sites were smaller in nature, however, and cleanup issues were simpler to address, and the DOE has successfully completed cleanup, or at least closure, of several sites.
The issue of disposal methods for nuclear waste was one of the most pressing current problems the valuable international nuclear industry faced when trying to establish a long term energy production plan, yet there was hope it could be safely solved. In the U.S., the DOE acknowledged much progress in addressing the waste problems of this vital and critical industry, and successful remediation of some contaminated sites, yet also major uncertainties & sometimes complications and setbacks in handling the issue properly, cost effectively, and in the projected time frame. In other countries with lower ability or will to maintain environmental integrity the issue would be more problematic..
2007-03-21 05:01:36
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answer #5
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answered by Anonymous
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dear
any substance which emits radioactive rays is known as radioactive substance
these emmits alpha ra, beta ra, gamma ray as well as x rays.
its prohibbita\ed in india to keep radioactive substance.
but u can get in nearby seas and oscean
bye bye
2007-03-21 03:15:52
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answer #6
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answered by Bikash Jain 1
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At the Finest Big Isotopes store ... see link below.
2007-03-20 16:22:12
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answer #7
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answered by sheila_0123 5
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