Radioactive contamination is a concern in both civilian and military environments. A radioactive contaminant can be found in any environment, from an urban city to a remote countryside.
It is important to know how to detect radioactive contamination and how to properly identify and handle a contaminated object or individual. The way to do this changes depending on the type of contamination.
When identifying radioactive contaminants, you need to know what amount of radiation is harmful. You must also know the duration of time that exposure to the radiation is harmful. This gives you two parameters to determine if something or someone is contaminated or not.
This article will discuss some common types of radioactive contaminants, how to identify them, and how to handle them safely.
Why is it important?
Containers are important because they hold a pure sample of a radioactive substance with a half-life of 2 hours. These samples help scientists learn more about the elements in the periodic table and how they interact with each other.
As mentioned before, radioactive isotopes are produced as a result of nuclear fission or nuclear fusion. When this happens, molecules called isotopic clusters are formed.
Isotopic clusters contain either one atom or a group of atoms with the same atomic number but different atomic masses. These clusters can be either unstable or stable, depending on whether they undergo radioactive decay or not.
Radioactive isotopic clusters can be either pure element atoms or composite (mixed) atoms containing several different elements. All of these elements have different properties that can be studied through research.
Scientists use containment systems to keep radiation leakage to a minimum while allowing for easy access for research purposes.
What is a half-life?
A half-life is the amount of time it takes for a substance to lose half of its radioactivity. This is due to the fact that the element loses energy, and no longer functions as a radioactive element.
For example, if a container held a pure sample of plutonium with a half-life of 24 years, then after 12 hours, you would have 12 hours left of plutonium, and after another 12 hours, you would be left with 6 hours of plutonium.
After 24 more hours, you would be left with no plutonium at all. The only thing that would be left is trace amounts of other elements formed from the decay process.
The shorter the element’s half-life, the more frequently you will have to re-shield your radioactive material. However, if your element has a long half-life, then you will not have to re-shield your material for quite some time.
What happens during a radioactive decay?
During a radioactive decay, a nuclide or atom loses energy and nuclear stability as it transmutes to a different nuclide. This happens as a result of two main things:
Nuclear fusion: When two nuclides merge together to form a new nucleus with a loss of energy. This is also called nuclear transformation.
Nuclear fission: When a heavy isotope breaks into two lighter isotopes accompanied by a release of energy. This is also called nuclear transmutation.
During nuclear fusion, one nuclide combines with another one to form a new element. An example of this is beryllium (Be) combining with lithium (Li) to form beryllium lithium (BeLi). The latter is an element that does not exist in nature but was created in the lab for research purposes.
During nuclear fission, an isotope breaks into smaller parts called fragments. An example of this would be uranium (U) splitting into neptunium (Np) and barium (Ba). Both Np and Ba are elements that exist in nature.
How can I protect myself from radioactivity?
While it is impossible to avoid all exposure to radioactive material, you can reduce your exposure. There are two primary ways of reducing exposure: avoidance and protective measures.
Avoidance means limiting your proximity to radioactivity and radioactive substances. This includes avoiding contaminated areas, avoiding consumption or use of contaminated items, and not engaging in activities that increase your exposure (such as searching for more radioactive material).
Protective measures include using shields to block radiation and protective clothing to cover exposed skin. Both of these can be used for ongoing protection after an incident, as well as for emergency situations.
Shields and protective clothing both have a lifespan; they will become no longer effective at protecting you from radiation. It is important to check the durability of these items, and replace them when needed.
What are the different types of radioactivity?
Radioactivity comes in a few different forms. The most well-known is gamma radiation, which is the kind that can lead to radiation poisoning. Gamma radiation is emitted as a result of nuclear transmutation, or the process of changing one element into another.
Alpha radiation is another type that can be very harmful. This kind of radioactivity is emitted from uranium and plutonium and can be blocked by thin layers of material such as paper or clothing. It cannot, however, be absorbed into liquid so you would have to avoid exposure by moving away from the contaminated area.
beta radiation is much less potent than alpha or gamma radiation and can be blocked by thicker materials such as lead. It can only be absorbed into tissue and can’t travel very far so it can easily be avoided. Radioactive decay products itself are not dangerous unless the individual has an excessive amount of exposure to them.
What are the health effects of radioactivity?
While small doses of radiation are considered safe, radiation isn’t something that should be taken lightly. Prolonged exposure to low-dose radiation has been linked to cancer risk.
As the radioactivity decays, its energy level decreases as well. When the atom transforms into a different substance, such as from uranium into neptunium, the amount of radiation it gives off decreases as well.
Because radioactive atoms are unstable, they naturally emit electromagnetic waves and particles that affect the surrounding environment. This is what is known as radioactivity.
Particles can include alpha particles, beta particles, and gamma rays. While all three can cause damage to cells in your body if you are exposed to them, gamma rays are the most harmful. They have the ability to penetrate deep into your tissues, which increases your risk of developing a cancerous tumor.
How can I reduce exposure to radioactivity?
It is not possible to eliminate exposure to radioactivity. However, you can reduce your exposure by avoiding contaminated areas and radioactive materials.
If you are in a area with an environmental contamination or nuclear incident, listen to authorities and evacuate if told to do so. If you are unable to evacuate, then limit your exposure by staying inside and avoiding outside air, water, and food sources.
By staying indoors, you will avoid external sources of radiation. If able to do so, bring in your own bottled water and other sources of clean water that have been filtered. Avoid sharing this with others who may not know the proper precautions.
There is no way to completely eliminate internal radiation exposure, but you can reduce it by getting enough sleep and eating a healthy diet.
What are some examples of radioactive materials?
Some examples of radioactive materials include uranium, radium, plutonium, and caesium. All of these substances are man-made, which is why they are referred to as nuclear materials.
Uranium is one of the most common metals on earth. It is a heavy metal that can be chemically dissolved. This makes it easy to separate out from other elements and substances.
Radium is a radioactive element that was once used in paint. It has a very long half-life so it would take a long time for it to lose all of its radiation. When it was used as paint, it would dry and chip away leaving just the solid substance.
Plutonium is one of the heaviest elements known to man. It has some military uses but can also be used as a source of radiation. Caesium is a soft silver-white metal that can be used in watches and gauges due to its constant timing function.
