Radioactive particles decaying plant ingest. Medical search. Frequent questions

Alpha particle ( ionizing radiation ) - two neutrons and two protons bound as a single particle (a helium nucleus) that is emitted from the nucleus of certain radioactive isotopes in the process of disintegration. (cdc.gov)
Background radioactivity - radioactive elements in the natural environment including those in the crust of the earth (like radioactive potassium, uranium, and thorium isotopes) and those produced by cosmic rays. (cdc.gov)
Beta particle ( ionizing radiation ) - a charged particle emitted from the nucleus of certain unstable atomic nuclei (radioactive isotopes), having the charge and mass of an electron. (cdc.gov)
Al thorium isotopes emit alpha or beta duration oral MRLs were derived for laboratory animal evidence following particles with or without gamma radiation Data regarding the transport and thorium. (cdc.gov)
parenteral exposure to colloidal thorium as they decay primarily toward isotopes partitioning of thorium in the dioxide (Thorotrast). (cdc.gov)
Both isotopes decay into non-radioactive elements. (cdc.gov)
Deposited in the lungs or kidneys, uranium 238 and products from its decay (thorium 234, protactinium and other uranium isotopes) give off alpha and beta radiations which cause cell death and genetic mutations causing cancer in exposed individuals and genetic abnormalities in their descendents over the years. (vijayvaani.com)
The half-life of this decay varies between 159,200 and 4.5 billion years for different isotopes , making them useful for dating the age of the Earth . (wikimili.com)
However, I agree, that the EXTREAM dangers of all types of radioactive isotopes being expelled into both the air, ocean, and into a wide area's soil from this accidental (and unwarranted, unplanned for. (berkeley.edu)
The U-238 series has 14 radioactive isotopes in secular equilibrium, thus each represents about 11 kBq/kg (irrespective of the mass proportion). (world-nuclear.org)
It is the lightest element whose isotopes are all radioactive . (knowpia.com)
Uranium is weakly radioactive because all its isotopes are unstable (with half-lives of the six naturally known isotopes, uranium-233 to uranium-238, varying between 69 years and 4.5 billion years). (ipfs.io)
The natural abundance of each of these elements includes radioactive isotopes . (sciencenotes.org)
Common radioactive foods usually get their radioisotopes from the soil, although it's also possible to absorb isotopes with water. (sciencenotes.org)
Foods that are radioactive from radium or radon could pose more of a risk because ingesting these isotopes exposes the mouth, esophagus, stomach, and intestines to alpha particles . (sciencenotes.org)
Radioactive isotopes that were ingested or taken in through other pathways will gradually be removed from the body via bowels, kidneys, respiration and perspiration. (radiation-dosimetry.org)

The radiation emitted from a radium 226 atom is 96% alpha particles and 4% gamma rays. (wikipedia.org)
In the case of alpha EM radiation, the radioactive source material will be floating or passing, stuck to clothing, skin or hair in the form of particulate (sub-micron sized radioactive dust particles). (godlikeproductions.com)
The second type of radiation is the emissions from any air-born particles carried out the plant, lofting into the atmosphere and travelling across Japan -- these have now reached Canada and the US. (godlikeproductions.com)
Most of that is in the form of alpha particles from U-238 and U-234 - the most harmful form of radiation if ingested into the body - with beta particles given out by decay products that form within a few weeks. (cosmoschronicle.com)
Ionizing radiation is made up of high-energy particles, such as electrons, protons, and alpha particles, or high-energy waves, such as x-rays and gamma rays. (termsdepot.com)
Artificial sources of ionizing radiation include medical x-rays, CT scans, and nuclear power plants. (termsdepot.com)
1. Alpha particles are the heaviest and most energetic type of radiation, and can easily ionize atoms. (termsdepot.com)
It is a type of electromagnetic radiation, which means it is made up of high-energy particles that can cause damage when they interact with matter. (termsdepot.com)
Ionizing radiation is used in medical procedures, such as X-rays and cancer treatment, but it can also be found in our environment, for example in nuclear power plants and radioactive waste. (termsdepot.com)
The damning analysis came as it emerged that workers at Japan's stricken nuclear plant are reportedly being offered huge sums to brave high radiation in an attempt to bring its overheated reactors under control. (blogspot.com)
However, when plutonium particles are inhaled they can become lodged in lung tissue and continue to give off radiation internally for years. (blogspot.com)
For all persons in the US I'd suggest abstaining from ingesting any sea food from the Pacific Ocean, this is probably one of the worst sources of radiation you can expose yourself too. (beforeitsnews.com)
I suggest using a Reverse Osmosis system, which may be effective in removing "most" of the radiation particles or drinking water drawn from below the ground. (beforeitsnews.com)
Japanese officials have declared only a 12 ½-mile evacuation zone despite the fact that radiation levels outside and above the deteriorating nuclear power station have reached intolerably high levels due to releases of radioactive steam. (socialistaction.org)
While the theft of a truck carrying radioactive cobalt made international headlines, this was unfortunately not the first time thieves or scavengers have exposed themselves or others to lethal radiation. (fas.org)
Four people died form radiation sickness by ingesting just milligrams of the substance. (fas.org)
In that report, we underscore that even suicidal terrorists would have to live long enough to withstand the lethal radiation of a highly radioactive substance to use it as a radiological weapon. (fas.org)
Based on the news accounts of the recent theft in Mexico, the thieves broke open the box carrying the radioactive cobalt sources and exposed themselves to lethal radiation. (fas.org)
Exposure to large amounts of radioactive cesium can damage cells in your body from the radiation. (cdc.gov)
Because radioactive cesium emits ionizing radiation, carcinogenic effects similar to those observed in Japanese survivors of the atomic bombing incidents might be expected among individuals acutely exposed to very high levels of radiation from a radioactive cesium source. (cdc.gov)
Exposure to the radiation from radioactive cesium has caused birth defects in animals. (cdc.gov)
Radiation is energy transmitted in the form of electromagnetic waves or energetic particles. (medscape.com)
Ionizing radiation can also be in the form of particulate radiation, which includes subatomic l charged or neutral particles traveling near the speed of light and therefore with high very high kinetic energy. (medscape.com)
As it is getting more and more clear that the radiation leak started in March 12th the first day that reactor housing exploded how many days does it take for radioactive air molecule to circle the earth? (berkeley.edu)
Searching for uranium is in some ways easier than for other mineral resources because the radiation signature of uranium's decay products allows deposits to be identified and mapped from the air. (world-nuclear.org)
The only silver lining to this foul air scenario is that Radiation Station Santa Monica's HEPA filters captured these alpha and beta radiation particles before they could be inhaled or ingested. (enviroreporter.com)
Here's a list of 10 radioactive foods and how much exposure to radiation you get from them. (sciencenotes.org)
Potassium-40 undergoes both types of beta decay , while radium and radon emit alpha and gamma radiation. (sciencenotes.org)
Alpha radiation consists of alpha particles that are energetic nuclei of helium . (nuclear-power.com)
Pure alpha decay is very rare, and alpha decay is frequently accompanied by gamma radiation . (nuclear-power.com)
The Bragg curve is typical for alpha particles and other heavy-charged particles and describes the energy loss of ionizing radiation during travel through matter. (nuclear-power.com)
Internal exposure to Cs-137, through ingestion or inhalation, allows the radioactive material to be distributed in the soft tissues, especially muscle tissue, exposing these tissues to the beta particles and gamma radiation and increasing cancer risk. (toxindefense.org)
Tritium, which is produced by cosmic radiation in the atmosphere and exists all around us IN MINUTE QUANTITIES in surface water and in trace quantities elsewhere in the biosphere except around nuclear power plants (which are allowed to routinely emit hundreds of Curies of tritium every year), emits beta radiation. (blogspot.com)
ALL types of ionizing radiation are very strong forms of energy emissions, whether they are "like" photons that the sun puts out (but with "a lot more energy") or high-speed helium atoms without their electrons (alpha particles), or high-speed electrons (beta particles), or penetrating but short-lived neutrons (about 15 minutes before they decay by beta emission into hydrogen, on average). (blogspot.com)
Radioactive contamination consist of radioactive material, that generate ionizing radiation. (radiation-dosimetry.org)
Doctors remove as much external and internal (that which is inhaled or ingested) radioactive material as possible and treat symptoms and complications of radiation injury. (msdmanuals.com)
In general, ionizing radiation refers to high-energy electromagnetic waves (x-rays and gamma rays) and particles (alpha particles, beta particles, and neutrons) that are capable of stripping electrons from atoms (ionization). (msdmanuals.com)
Ionizing radiation is emitted by radioactive substances (radionuclides), such as uranium, radon, and plutonium. (msdmanuals.com)
Once in the body, radioactive material may be transported to various sites, such as the bone marrow, where it continues to emit radiation, increasing the person's radiation exposure, until it is removed or emits all its energy (decays). (msdmanuals.com)

5. Neutrons are uncharged particles, and can ionize atoms. (termsdepot.com)
Alpha particles are charged particles made up of 2 protons and 2 neutrons-essentially the nucleus of a helium atom. (medscape.com)
Trace quantities arise in natural uranium-238 deposits when uranium-238 captures neutrons emitted by decay of other uranium-238 atoms. (everipedia.org)
Plutonium is much more common on Earth since 1945 as a product of neutron capture and beta decay, where some of the neutrons released by the fission process convert uranium-238 nuclei into plutonium-239. (everipedia.org)
Alpha particles consist of two protons and two neutrons bound together into a particle identical to a helium nucleus. (nuclear-power.com)
This is similar to cluster decay , in which an atomic nucleus emits a small "cluster" of neutrons and protons (e.g.,, 12 C). (nuclear-power.com)
The fusion reaction fuses deuterium and tritium into helium and releases radioactive neutrons that decay by beta emission and when absorbed by uranium produce Plutonium used in nuclear weapons. (blogspot.com)
The fusion reaction also releases neutrons which make everything they come into contact highly radioactive. (blogspot.com)

Plutonium-239 emits alpha particles. (cdc.gov)
Tritium is a radioactive contaminant with a half life of 12.32 years and emits a low energy beta particle. (blogspot.com)
Plutonium-238 has a half-life of 88 years and emits alpha particles . (everipedia.org)

The radioactivity level of an isotope is determined by its half-life, or the amount of time it takes for half of the original quantity of the isotope to decay. (blogspot.com)
Uranium-235 is the only naturally occurring fissile isotope , which makes it widely used in nuclear power plants and nuclear weapons . (wikimili.com)
Common radioactive foods contain potassium-40, radium, or radon (the immediate daughter isotope of radium). (sciencenotes.org)
As stated above, the fuel source for fusion reactions is the rare and short-lived radioactive isotope of hydrogen, tritium, which must be created or 'bred' in a fission reactor. (blogspot.com)
Cesium-137 is radioactive isotope produced from nuclear catastrophes like Chernobyl and Fukushima. (toxindefense.org)
Radioactive cesium isotope binding has not been tested in humans for obvious reasons: it would be unethical to feed humans radioactive food. (toxindefense.org)
This is because nuclear power plants and weapons produce vast quantities of the isotope and therefore, the levels of C-14 in the biosphere that exists now varies from place to place, and what percentage of C-14 a living object will be made of can no longer be relied on for dating purposes. (blogspot.com)
Radioiodine plays a major role as a radioactive isotope present in nuclear fission products , and it is a major contributor to the health hazards when released into the atmosphere during an accident. (radiation-dosimetry.org)

It is what they say as mildly radioactive, which is kind of a misnomer, radioactivity is hazardous even in mild form. (cosmoschronicle.com)
You've got toxic heavy metal, you've got radio-activity that can be contaminated with much higher level radioactivity from high-level radioactive waste. (cosmoschronicle.com)
So as 0.1% half life dissipation rate for 80 days the likely initial targets of New Zealand, Phillipines, Hawaii must be getting more increased radioactivity accumulation over the past 19 days of active radioactive winding period? (berkeley.edu)
About 95% of the radioactivity in the ore is from the U-238 decay series, totalling about 150 kBq/kg in ore with 0.1% U 3 O 8 . (world-nuclear.org)
However, with the removal of most U-238, the following two short-lived decay products in the uranium decay series (Th-234 and Pa-234) soon disappear, leaving the tailings with a little over 70% of the radioactivity of the original ore after several months. (world-nuclear.org)
Normal radioactive food is no big deal, but some food gets its radioactivity from proximity to a nuclear test or nuclear accident site. (sciencenotes.org)
Food radioactivity due to accidents is a bigger problem because radioisotopes are absorbed into the plants and animals and may also form a dust on their surfaces. (sciencenotes.org)
Alpha decay (or α-decay and alpha radioactivity ) represents the disintegration of a parent nucleus to a daughter through the emission of the nucleus of a helium atom. (nuclear-power.com)

Naturally occurring radioactive materials (NORM) and technologically enhanced naturally occurring radioactive materials (TENORM) consist of materials, usually industrial wastes or by-products enriched with radioactive elements found in the environment, such as uranium, thorium and potassium and any of their decay products, such as radium and radon. (wikipedia.org)
Natural radioactive elements are present in very low concentrations in Earth's crust, and are brought to the surface through human activities such as oil and gas exploration or mining, and through natural processes like leakage of radon gas to the atmosphere or through dissolution in ground water. (wikipedia.org)
Radon decays to lead-210, then to bismuth-210, polonium-210 and stabilizes with lead-206. (wikipedia.org)
Radon decay elements occur as a shiny film on the inner surface of inlet lines, treating units, pumps and valves associated with propylene, ethane and propane processing systems. (wikipedia.org)
Radon gas is a natural by-product of uranium decay. (naturphilosophie.co.uk)

An example is plutonium-239 produced following neutron absorption by uranium-238 and subsequent decays of uranium-239 to neptunium-239 and then to plutonium-239. (cdc.gov)
Plutonium is a very dangerous radioactive material that some smart scientists discovered in 1941. (blogspot.com)
Breathing in Plutonium particles is not advised. (blogspot.com)
Tokyo Electric Power Co. said in a statement that the plutonium was discovered Monday in five locations around the plant. (blogspot.com)
Safety officials say the amount of plutonium found does not pose a risk to humans, but critics say the finding supports suspicions that dangerously radioactive water is leaking from damaged nuclear fuel rods. (blogspot.com)
Plutonium is a silvery-grey, radioactive metal. (blogspot.com)
Approximately 110 tonnes of Plutonium-239 are generated each year in nuclear power plants across the globe. (blogspot.com)
Plutonium remains radioactive for very long time. (blogspot.com)
Because plutonium is radioactive, it is difficult to handle and store. (blogspot.com)
The most common ways plutonium enters the body is through inhaling contaminated air, or ingesting contaminated food or water. (blogspot.com)
Exposure to plutonium through inhalation poses a much bigger health risk than when ingested. (blogspot.com)
Plutonium is not easily digested by the stomach, therefore when plutonium is ingested it is generally passed out of the body. (blogspot.com)
If plutonium particles reach internal organs they can remain there for decades, continually damaging the surrounding tissue. (blogspot.com)
Being one of the heavier elements, plutonium isn't able to travel as far through the air, meaning dangerous plutonium particles are unlikely to reach Canada's coast. (blogspot.com)
Also see: How dangerous is the plutonium from the Japanese nuclear plant? (blogspot.com)
Answer: If you breathe A PLUTONIUM PARTICLE in, it will destroy you from the inside. (blogspot.com)
The plutonium particles are INVISIBLE. (blogspot.com)
This reactor has mixed reprocessed plutonium and uranium oxides for fuel (MOX), and is extremely worrisome because inhaling even the most minute particles of plutonium is lethal. (socialistaction.org)
Plutonium is a radioactive chemical element with the symbol Pu and atomic number 94. (everipedia.org)
It is radioactive and can accumulate in bones, which makes the handling of plutonium dangerous. (everipedia.org)
Disposal of plutonium waste from nuclear power plants and dismantled nuclear weapons built during the Cold War is a nuclear-proliferation and environmental concern. (everipedia.org)
Alpha particles are commonly emitted by all of the heavy radioactive nuclei occurring in nature (uranium, thorium, or radium), as well as the transuranic elements (neptunium, plutonium, or americium). (nuclear-power.com)

The beta decay of tritium releases very little energy, and the electrons it releases are not fast, and the penetrating power is very weak. (verycoldscience.com)
When HTO decays after entering the cell with the metabolic process, the electrons released by it have the opportunity to enter and destroy the DNA molecular chain, thereby causing cell degeneration. (verycoldscience.com)
Alpha particles and electrons (deflected by a magnetic field) from a thorium rod in a cloud chamber. (nuclear-power.com)
Alpha particles interact with matter primarily through coulomb forces (ionization and excitation of matter) between their electrons' positive and negative charge of the electrons from atomic orbitals. (nuclear-power.com)
The charged particle can transfer energy to the atom, raising electrons to higher energy levels. (nuclear-power.com)

2. Beta particles are lighter and less energetic than alpha particles, and can also ionize atoms. (termsdepot.com)
Energetic beta particles penetrate the dead skin layer. (cdc.gov)
Alpha particles are energetic nuclei of helium, and they are relatively heavy and carry a double positive charge . (nuclear-power.com)
Especially energetic alpha particles (except artificially accelerated helium nuclei) are produced in a nuclear process known as ternary fission . (nuclear-power.com)
The smallest fission fragments most probably (90% probability) is an extra energetic alpha particle. (nuclear-power.com)

Cutting and reaming oilfield pipe, removing solids from tanks and pits, and refurbishing gas processing equipment may expose employees to particles containing increased levels of alpha emitting radionuclides that could pose health risks if inhaled or ingested. (wikipedia.org)
Radium radionuclides emit alpha and beta particles as well as gamma rays. (wikipedia.org)
On the other hand, radionuclides with very short radioactive half-lives have also very short effective half-lives. (radiation-dosimetry.org)

Short lived radioactive atoms are MORE dangerous because they are more active and decay more often! (blogspot.com)
Indeed, helium is retrieved from natural gas , having resulted from the natural decay of Uranium (U) and Thorium (Th) atoms, present in the granitoid rocks of the continental crust. (naturphilosophie.co.uk)
I presume what the author intended to refer to is that the "large" alpha particle has a cross-section (as measured in barns, for example) which interacts with the nuclei of other atoms much more than, for example, a beta particle would. (blogspot.com)

Unlike the cooling water discharged from normal nuclear power plants, the water that penetrates into the core of the reactor carries all dozens of radioactive materials produced by nuclear fission in the process of contact with nuclear materials. (verycoldscience.com)
In this process, the uranium nucleus is split into three charged particles (fission fragments) instead of the normal two. (nuclear-power.com)
Although fusion reactions do not release CO2, every aspect of the fuel cycle, from breeding tritium fuel with fission reactors at $30,000 per gram, to building the $30 billion football field sized reactor buildings, to decommissioning what will end up to be a highly radioactive building, produces tremendous amounts of greenhouse gases. (blogspot.com)
The legislature notes that, unlike fission reactors, fusion reactors produce shorter-lived radioactive byproducts and are a safer and cleaner alternative to nuclear-powered fission reactors. (blogspot.com)
These massive nuclei are unstable and spontaneously decay by fission into lighter elements, some of which are also radioactive. (naturphilosophie.co.uk)

These particles are entrained by the mechanical disturbances of the fire-fighters' water being poured on the reactors, the hydrogen explosions, etc. (godlikeproductions.com)
Consequently, serious damage has been done to the reactor cores and spent fuel rod pools, which have experienced either hydrogen explosions or fires, releasing radioactive steam and smoke. (socialistaction.org)
Reactor No. 3: Its housing experienced a hydrogen explosion and its primary stainless steel containment vessel is ruptured and leaking radioactive steam. (socialistaction.org)
Technically, all food is slightly radioactive because it contains the elements carbon, hydrogen, and potassium. (sciencenotes.org)
Tritium behaves chemically like atomic hydrogen and bonds with oxygen to form radioactive "tritiated water" and then decays to regular hydrogen by very dangerous beta emission so if it is ingested it is carcinogenic. (blogspot.com)
Cosmic rays are extremely high-energy charged particles, mostly hydrogen and helium nuclei, of extra-galactic origin, which reach our home planet from every direction. (naturphilosophie.co.uk)

The high-level radioactive waste contaminants can include cesium 137, strontium 90. (cosmoschronicle.com)
When the scavengers broke open the protective seal of the radioactive source, they saw a blue glowing powder: cesium chloride. (fas.org)
But if the radioactive material had been cesium-137 in chloride form, this event in Mexico could have been a ghastly replay of the 1987 event in Goiania. (fas.org)
Exposure to stable or radioactive cesium occurs from ingesting contaminated food or drinking water or breathing contaminated air. (cdc.gov)
Stable (non-radioactive) cesium has been found in at least 8 of the 1,636 National Priority List (NPL) sites identified by the Environmental Protection Agency (EPA). (cdc.gov)
Radioactive cesium has been found in at least 23 of the 1,636 NPL sites identified by the EPA. (cdc.gov)
Naturally occurring cesium is not radioactive and is referred to as stable cesium. (cdc.gov)
Nuclear explosions or the breakdown of uranium in fuel elements can produce two radioactive forms of cesium, 134 Cs and 137 Cs. (cdc.gov)
You can be exposed to low levels of stable or radioactive cesium by breathing air, drinking water, or eating food containing cesium. (cdc.gov)
You can be exposed to radioactive cesium if you eat food that was grown in contaminated soil, or if you come near a source of radioactive cesium. (cdc.gov)
Living near uncontrolled radioactive waste sites containing cesium. (cdc.gov)
There are no studies regarding non radioactive cesium and cancer. (cdc.gov)
There are no human studies that specifically associate exposure to radioactive cesium with increased cancer risk. (cdc.gov)
Almost any ionized chemical can be radioactive, but certain elements like cesium are most common. (waterdefense.org)
People may ingest cesium-137 with food and water, or may inhale it as dust. (toxindefense.org)
Cesium-137 has a half-life of 30 years and it mimics potassium in soils and plants. (toxindefense.org)
This is orders of magnitude higher than any level of radioactive cesium which has so far been detected in any food. (toxindefense.org)
What makes Cesium Eliminator unique is the specific ratios and particle sizes used in the formula. (toxindefense.org)

Watchdog Kevin Kamps told Sputnik that US national security spokesman John Kirby's claim that DU penetrator rods were not radioactive or carcinogenic was simply not true. (cosmoschronicle.com)

Internal contamination is radioactive material deposited within the body, which it may enter by ingestion, inhalation, or through breaks in the skin. (msdmanuals.com)

It commonly refers to the radioactive dust and ash created when a nuclear weapon explodes, but this dust can also be originated in a damaged nuclear plant. (beforeitsnews.com)
Contamination is contact with and retention of radioactive material, usually as a dust or liquid. (msdmanuals.com)

Capt. Stagner is very concerned about the lack of monitoring of tritium emitted from Palo Verde Nuclear Plant. (blogspot.com)
Tritium can be absorbed through the skin (or inhaled or ingested). (blogspot.com)
It is clear that we inhale tritium in the humidity in Phoenix air (mostly late summer when it is very hot and relatively humid) and we no doubt ingest tritium through our food. (blogspot.com)
Tritium can be absorbed by plants and Capt Stagner notes in a personal email to me that Phoenix reclaims water that may be contaminated with tritium. (blogspot.com)
Tritium is not listed: its beta particle is low energy. (blogspot.com)
The radioactive tritium inside is also very cute and harmless, and it can be used to drink. (verycoldscience.com)
In fact, many people have seen tritium-not in nuclear power plants, but in our watches. (verycoldscience.com)
Tritium is in the process of decay. (verycoldscience.com)
Now you know, even the "gentle tritium monarch" promoted by some people, once it enters the cell and decays, it will also show its hideous appearance, and its lethality is no less than that of the dangerous uranium-235. (verycoldscience.com)
They certainly know that in the "Tritium is Harmless" propaganda poster, they have clearly marked the circulation path of tritium in the human body and the ocean, but they have selectively ignored the effects of tritium and other radioactive substances in the body. (verycoldscience.com)
A nuclear fusion power plant is a giant facility that consumes tremendous amounts of energy and water and produces radioactive waste in the breeding of tritium fuel and in the reactor building. (blogspot.com)
For example, tritium has the biological half-life about 10 days, while the radioactive half-life is about 12 years. (radiation-dosimetry.org)

Food and water made radioactive due to man-made contamination may be unsafe to eat or drink. (sciencenotes.org)
The intake of radioactive material can occur through various pathways such as ingestion of radioactive contamination in food or liquids. (radiation-dosimetry.org)
Anytime that radioactive material is not in a sealed radioactive source container and might be spread onto other objects, radioactive contamination is a possibility. (radiation-dosimetry.org)

Alpha particles are identical with helium-4 nuclei. (wikipedia.org)
In nuclear reactors , they are produced in the fuel (alpha decay of heavy nuclei). (nuclear-power.com)

The alpha particle is not the most dangerous particle associated with NORM, as an external hazard. (wikipedia.org)
Alpha particles travel short distances in air, of only 2-3 cm, and cannot penetrate through a dead layer of skin on the human body. (wikipedia.org)
However, some radium alpha particle emitters are "bone seekers" due to radium possessing a high affinity for chloride ions. (wikipedia.org)
The Electromagnetic Energy of alpha decay can be detected if a detector has the right proximity to the radioactive source material. (godlikeproductions.com)
If the air-born particulate or fall-out is an alpha emitter it will be detected by the hand held detector provided it is close enough (an inch or so) and the rate of decay is frequent enough to emit an alpha decay within the immediate area of the detector's reading face (window) or the detector pauses long enough at that point if the source is stationary. (godlikeproductions.com)
That is what I used in Iraq and Afghanistan, where alpha decay is accompanied by gamma emissions. (godlikeproductions.com)
When alpha particles are being measured in an environmental sample, they can be absorbed by the sample itself unless the sample has been prepared to be very thin. (cdc.gov)
Corrections can be applied for this self-absorption of alpha particles in some samples (e.g. air filters). (cdc.gov)
The beta particle is not stopped in matter as quickly as an alpha particle. (cdc.gov)
Okay, so what is "alpha decay" and what does it take to protect yourself? (eoshd.com)
Being relatively heavy and positively charged, alpha particles tend to have a very short mean free path , and quickly lose kinetic energy within a short distance of their source. (eoshd.com)
Because of their relatively large mass and positive charge, alpha particles are highly effective in transferring energy to tissue but are also easily blocked by a piece of paper or clothing. (medscape.com)
Uranium radioactively decays by emitting an alpha particle . (wikimili.com)
The production of alpha particles is termed alpha decay. (nuclear-power.com)
Alpha particles are relatively large and carry a double positive charge. (nuclear-power.com)
Typical alpha particles have a kinetic energy of about 5 MeV. (nuclear-power.com)
This is due to the nature of alpha decay. (nuclear-power.com)
Alpha particles heavily ionize matter, and they quickly lose their kinetic energy. (nuclear-power.com)
Therefore alpha particles have very short ranges . (nuclear-power.com)
For example, the ranges of a 5 MeV alpha particle (most have such initial energy) are approximately 0,002 cm in aluminium alloy or approximately 3.5 cm in air. (nuclear-power.com)
The stopping power of most materials is very high for alpha particles and heavy-charged particles. (nuclear-power.com)
Even the dead cells in the outer layer of human skin provide adequate shielding because alpha particles can't penetrate it. (nuclear-power.com)
To be emitted, the alpha particle must penetrate a potential barrier. (nuclear-power.com)
The alpha particles emitted in nuclear decay have typical energies of about 5 MeV. (nuclear-power.com)
Since the electromagnetic interaction extends over some distance, alpha particles don't have to collide with an atom directly. (nuclear-power.com)
Claiming that an alpha particle "doesn't go very far" because it is heavy is not only counter-intuitive, it's wrong (at least according to Newtonian physics, to the extent it applies at the sub-atomic level). (blogspot.com)
One alpha particle -- what you refer to as "low energy" -- can ionize thousands of molecules in the human body. (blogspot.com)
When discussing beta particles, you state they "can go a little further than alpha particles. (blogspot.com)

Activity - the mean number of decays per unit time of a radioactive nuclide expressed as disintegrations per second. (cdc.gov)

Potassium iodide tablets are being distributed to prevent the thyroid cancer that results from exposure to radioactive Iodine-131. (socialistaction.org)

All soils and fertilizers contain small amounts of radioactive potassium. (sciencenotes.org)
People, plants, and animals are all very slightly radioactive from the potassium in their cells . (sciencenotes.org)

Except "radioactive" is a fairly meaningless term given bananas, potatoes, carrots and other foods are naturally radioactive. (eoshd.com)
Its neighbourhood of Talesh Mahalleh is the most naturally radioactive inhabited area in the World, and under long-term study. (naturphilosophie.co.uk)

The ground state of the nuclide technetium-99 is used as a gamma-ray-free source of beta particles . (knowpia.com)

If I remember correctly, the nuclear physicist and author, Dr. Caldicott, stated that the incubation period for hot particles in a person's body to turn into cancer is roughly two to three years for certain types of cancer, and 10 to 14 years for other types. (enviroreporter.com)

Ionization can occur when the charged particle has enough energy to remove an electron. (nuclear-power.com)
Detectable amounts occur in soil, rocks, water, air and vegetation, from which it is inhaled and ingested into the body. (naturphilosophie.co.uk)

Actinides - radioactive elements with atomic numbers equal to or greater than that of actinium (i.e., 88). (cdc.gov)
Lead has the highest atomic number of any stable element and concludes three major decay chains of heavier elements. (wikiversity.org)
First neptunium-238 (half-life 2.1 days) was synthesized which subsequently beta-decayed to form this new element with atomic number 94 and atomic weight 238 (half-life 87.7 years). (everipedia.org)

The radioactive core in one reactor at Fukushima's beleaguered nuclear power plant appeared to have melted through the bottom of its containment vessel, an expert warned yesterday, sparking fears that workers would not be able to save the reactor and that radioactive gases could soon be released into the atmosphere. (blogspot.com)
By doing so the overflow will be radioactive and dumped into the sea for as long as it takes to cool the reactor. (berkeley.edu)
When the Fukushima nuclear power plant reactor melted down, the internal pipeline was destroyed, causing the surrounding groundwater to continuously seep into the reactor core, with a daily seepage rate of up to 150 tons. (verycoldscience.com)

DU is often mixed with radioactive waste from nuclear power plants. (cosmoschronicle.com)

Kevin Kamps, a radioactive waste watchdog at Beyond Nuclear, warned of the multiple risks of the radioactive material. (cosmoschronicle.com)
For an in-depth assessment of the radioisotopes of security concern and the commercial radioactive source industry, see the January 2003 report "Commercial Radioactive Sources: Surveying the Security Risks," by myself, Tahseen Kazi, and Judith Perrera. (fas.org)

The amount of carbon-14 gradually decreases through radioactive beta decay with a half-life of 5,730 years. (mocomi.com)
Carbon-14 has a relatively short half-life of 5730 years, meaning that the amount of carbon-14 in a sample is halved over the course of 5730 years due to radioactive decay. (mocomi.com)

It decays by releasing small amounts of energy over time. (blogspot.com)

This property makes them easier to shield but also more hazardous if ingested. (medscape.com)

Nuclear Fallout is the residual radioactive material propelled into the upper atmosphere following a nuclear blast or a nuclear reaction conducted in an unshielded facility, so called because it "falls out" of the sky after the explosion and shock wave have passed. (beforeitsnews.com)
To put this Curie content in perspective, a source with 100 or more Curies of gamma-emitting radioactive material would be considered a source of security concern. (fas.org)
Of course, if the terrorists or thieves have training in safely handling radioactive materials, then they would not kill themselves in the process of accessing the material and making it into a weapon. (fas.org)
Radioactive material is present throughout Nature. (naturphilosophie.co.uk)

It will release an electron (beta particle) and a neutrino outside, and the phosphor of the luminous watch is excited by this electron to emit light. (verycoldscience.com)

They are produced by radioactive decay of certain elements, and can be dangerous if inhaled or ingested. (termsdepot.com)
Is Radioactive Food Dangerous? (sciencenotes.org)

For those on the West it's possible that your drinking water has radioactive particles. (beforeitsnews.com)
The whole world is watching as a reduced crew of engineers and technicians struggles to gain control of the situation by venting radioactive steam and pumping in seawater to cool down the reactors in "feed and bleed" operations, while desperately trying to raise rapidly falling water levels in the fuel-rod storage pools at the Fukushima nuclear power station. (socialistaction.org)
TEPCO's Fukushima Daiichi plant has six boiling-water reactors, three of which were already shut down for routine maintenance prior to the quake. (socialistaction.org)
So are lots of plants and rocks everywhere and compounds found in our own bodies and potentially well water if you live in a remote, rural region. (eoshd.com)
Being so tiny, these particles can be ingested or inhaled after being deposited on the ground or carried kilometres away by the wind, the food chain or water. (vijayvaani.com)
If you drink up all the Fukushima nuclear waste water, can you filter out radioactive materials? (verycoldscience.com)
If someone drinks water containing radioactive substances, all of these radioactive substances will not be absorbed by him. (verycoldscience.com)
Water treatment plants use chemicals and filtration to remove as many microbes as possible, but certain kinds are resistant to treatments with chlorine. (waterdefense.org)
Some drinking water is slightly radioactive, depending on its source. (sciencenotes.org)
Since it is hot power plant, the generator needs a lot of water to boil and to cool the plant. (blogspot.com)

DNA damage from a single ionizing radioactive emission can cause THOUSANDS of separate cancers to develop! (blogspot.com)

When a radioactive compound enters the body, the activity will decrease with time, due both to radioactive decay and to biological clearance . (radiation-dosimetry.org)

Most ingested radium (80%) exits the body through the feces, but about 20% accumulates in bones. (sciencenotes.org)

This means that a radioactive substance can be expelled before it has had the chance to decay. (radiation-dosimetry.org)

Since particles have mass, they are less penetrating than electromagnetic waves and deposit their energy readily. (medscape.com)

Anatomy36

Organisms52

Diseases2

Chemicals and Drugs68

Analytical, Diagnostic and Therapeutic Techniques and Equipment26

Psychiatry and Psychology1

Phenomena and Processes61

Disciplines and Occupations8

Anthropology, Education, Sociology and Social Phenomena3

Technology, Industry, Agriculture27

Information Science4

Health Care9

Isotopes16

Radiation39

Neutrons8

Emits3

Isotope8

Radioactivity8

Radon5

Plutonium22

Electrons5

Energetic5

Radionuclides3

Atoms3

Fission5

Hydrogen6

Cesium18

Carcinogenic1

Inhalation1

Dust2

Tritium12

Contamination3

Nuclei2

Alpha28

Disintegrations per second1

Exposure to radioactive1

Potassium2

Naturally2

Nuclide1

Person's1

Occur2

Atomic3

Reactor3

Waste from nuclear power1

Risks2

Half life2

Small amounts1

Hazardous1

Material4

Electron1

Dangerous2

Water10

Ionizing1

Enters the body1

Feces1

Substance1

Electromagnetic1