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Q: How thick does aluminum have to be to stop gamma rays?
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Which form of radiation will be stopped by a thick layer of concrete or a thick layer of lead?

Gamma rays and X-rays will pass right through paper (which will stop alpha rays) and aluminum sheets (that will stop beta rays), but can be stopped by a thick layer of concrete, lead, or other substances having sufficient mass.


What can stop gamma rays?

An eight inch thick lead shield.


What material will stop a gamma rays?

Mainly lead and very thick clothing,


Can gamma rays be stopped and how?

It seems that any matter will stop part of the gamma rays; to stop most of the gamma rays from passing, you would need a fairly thick layer of matter. The thickness required to block half of the gamma rays depends on the energy of the gamma rays. Just about any matter will do. For more details, check the Wikipedia article "Gamma ray", section "Shielding".


What will stop gamma rays?

gamma rays can be stop by lead block


Which type of radiation is difficult to stop?

Gamma rays can penetrate just about any type of matter. It takes meters of thick material to shield people from gamma rays.


Can gamma rays be stopped by a thick sheet of lead?

yes, but there is only one known material that can stop it, lead


What objects can stop gamma rays?

Gamma rays can be blocked by a thick amount of lead. Alpha -> goes through thin mica -> then stops at skin or paper. Beta -> Goes through thin mica - then goes through skin or paper -> gets stopped at lead. Gamma -> Goes through thin mica -> goes through skin or paper -> then can be slowed down by lead or can be stopped completely by a thick amount of lead. I may have Beta and alpha mixed up but please excuse me as im writing this out of my book (:


Can the earth's atmosphere stop gamma rays waves?

yes it can stop it


Can paper stop gamma rays?

No. An alpha particle can


How would you list alpha partcles beta particles and gamma rays in order of increasing penetrating power?

Alpha particles are the least penetrating, and are not able to pass through a single sheet of paper. Beta particles can penetrate through a sheet of paper, but not a piece of aluminum. Gamma rays can travel through both paper and aluminum and it takes dense material like lead to stop them or reduce their number. Gamma rays are high energy electromagnetic rays.


Does water vapor stop gamma rays from reaching earth?

no