alpha particles.
Alpha particles.
Alpha radiation is stopped easily by thin substances such as a sheet of paper or the skin. It is because of this that alpha radiation is generally non-harmful to humans.
alpha radiation :)
Gamma radiation
alpha radiation
There are different kinds of radiation and different kinds of paper. For the electromagnetic radiation, every material has "transparency windows". Sunlight is the electromagnetic radiation, too. As you can tell, some paper is transparent to it and some not. If we consider the particles radiation, then the particles nature and energy play major roles. Some heavy particles with low energy can be scattered by even relatively light obstacles. Whereas such particles as neutrino easily go through the entire Earth. alpha particles can be stopped by thin objects such as paper. beta particles can be stopped by thicker objects suck as plastic or aluminum foil gamma radiation can be stopped by several feet thick of concrete and/or lead
no x-ray or gamma ray radiation can be stopped or diluted by air. if that was the truth, a greater portion of the radiation would be stopped (absorbed, destroyed ) by atmospheric air in Chernobil's incidence. Radiation from Ukraine reached to Greece, Sweden and to many other places!
Alpha radiation consists of very heavy particles that can easily be stopped by a piece of paper. Beta radiation is much lighter and can be stopped by maybe 1/2 inch to 1 inch thick paper. Gamma radiation is high energy electromagnetic waves ( like x - rays) and can penetrate very much farther. Usually attenuation of gamma is referred to as tenth thickness or the thichness of a material that will decrease the amound of gamma rays penetrating it to 1/10 th of the original amount.
Alpha radiation is stopped easily by thin substances such as a sheet of paper or the skin. It is because of this that alpha radiation is generally non-harmful to humans.
Sunblock is made to block Ultraviolet radiation. Nuclear radiation, or Gamma radiation, is much more energetic and will easily penetrate zinc oxide sunblock, walls, and most everything else except several feet of concrete or a few inches of lead. In addition to Gamma radiation, nuclear reactions also give off less energetic particles called Alpha and Beta particles which can be inhaled and cause damage, which is why the Japanese are wearing wet wipes inside their face masks.
Alpha particles have a large mass and are easily absorbed and thus can only travel a few inches from their sources in air and will easily be absorbed by clothing. That being said if the source is ingested alpha particles are the most damaging form of radiation having a strong ionizing effect on their surroundings due to their high charge.
alpha radiation :)
ProsThe are some of the strongest bombs. They can end wars.What the bomb doesn't destroy, the radiation will.ConsThey are bad for the environment. They could easily kill innocent people.They are big and heavy.
Sunblock is made to block Ultraviolet radiation. Nuclear radiation, or Gamma radiation, is much more energetic and will easily penetrate zinc oxide sunblock, walls, and most everything else except several feet of concrete or a few inches of lead. In addition to Gamma radiation, nuclear reactions also give off less energetic particles called Alpha and Beta particles which can be inhaled and cause damage, which is why the Japanese are wearing wet wipes inside their face masks.
Gamma radiation
alpha radiation
There are different kinds of radiation and different kinds of paper. For the electromagnetic radiation, every material has "transparency windows". Sunlight is the electromagnetic radiation, too. As you can tell, some paper is transparent to it and some not. If we consider the particles radiation, then the particles nature and energy play major roles. Some heavy particles with low energy can be scattered by even relatively light obstacles. Whereas such particles as neutrino easily go through the entire Earth. alpha particles can be stopped by thin objects such as paper. beta particles can be stopped by thicker objects suck as plastic or aluminum foil gamma radiation can be stopped by several feet thick of concrete and/or lead
Firstly, alpha rays are easily stopped by paper, hence imagine how easily they would be absorbed in the body! Alpha radiation does not have a long 'mean free path' (search it up :)) and hence looses its energy quickly. Hence because they area easily absorbed, then it means that this big dose of alpha radiation is beign stored in a small volume of the body's material.