Alpha Radiation can be absorbed by a thin sheet of paper or a few cm or air.
Beta Radiation can be absorbed by a thin piece of foil, or a few m of air.
Gamma Radiation can only be absorbed by a thick lead plate.
Alpha and beta are particles, while gamma are photons and are considered rays.
Alpha particles have the least penetrating power. They can be stopped with a few inches of air or a sheet of paper. Beta particles are next. They can be stopped with a sheet of metal. Gamma rays have the most penetrating capability of the three. Several feet of concrete or lead will only weaken them.
That said, while it is true that alpha can be stopped, for instance, by your skin, if you ingest an alpha emitting material, you are at the most danger because the alpha particle, having the most mass and the most charge, can cause the most damage to sensitive body tissues that it comes into contact with.
oh god it penetrates deep. like the never ending sort of cave exploring it goes deep. oh god.
so, where you from?
The radioation energy and the kind of radiotion and the kind of material penetrated.
Alpha particles can be stopped by a sheet of paper. Beta radiation requires sheet metal--such as a sheet of tin, or aluminum foil. Gamma radiation requires inches of lead to block.
Gamma can go through paper, skin and aluminum but gets stopped by a few cms of lead!
by using an iron shield
The Gamma Ray.
Gamma Ray
Alpha Radiation
In descending order of penetration:-gamma rays.neutrons.beta particles.alpha particles.
Alpha particles are the least penetrating form of radiation. However, that does not mean they are the least dangerous. Even though they can be stopped with only an inch or so of air, or even by our skin, if they are ingested and come into contact with sensitive body tissues, they can be dangerous, because they have the highest charge and the highest mass.
Ionizing
If you are asking about which radiation is the most penetrating, gamma rays are the "strongest" in that regard.Gamma rays are electromagnetic radiation of the highest possible energy (frequency). It has a higher frequency (shorter wavelength) than even X-rays. It has the greatest ability to penetrate materials. A gamma ray can go through a hundred people with ease.It takes a very large mass to be effective in stopping gamma radiation. Any material can be used as shielding but, in general, the more mass, the better. It takes a lot more water than lead to stop gamma rays because water is much less dense than lead, but water is cheaper. Stone, concrete, or soil is very cost effective.Any of these radiation may be emitted from the nucleus of an atom during radioactive decay (depending on the type of decay). They all ionize material as it slows them down. Both alpha and beta radiation are particulate radiation, as they are composed of particles.Alpha particles are helium-4 nuclei, composed of two protons and two neutrons. These don't travel very far in air, and a sheet of paper will stop them.A Beta particle is a high energy electron or positron. These have a modest ability to penetrate, but a sheet of aluminum foil will stop them.
Gamma radiation
Alpha radiation.
The gamma radiation is extremely penetrant.
Neutrinos.
Gamma Ray
Gamma rays are by far the most penetrating of the three types of radiation.
Gamma radiation
Alpha Radiation
Of all the three types of radiation (alpha, beta and gamma), Gamma rays are the most penetrating, being able to travel through a few meters of lead.
Gamma waves :D
Gamma ray, by far. Alfa can be blocked by as little as a piece of notebook paper, buy Gamma (from sources such as a reactor core) will pass through 6 feet for stailsteel-lined concrete and can give a leathal dose in as little as 20 minutes.
Gamma rays have the shortest wavelength compared to most of other electromagnetic radiation. Gamma rays have high penetrating power and are high in frequency. Exposure to this type of radiation can cause many health complications.