If you have lots of space, a few feet of concrete is cheaper than several inches of lead, and regular dirt is even cheaper (e.g. bury the source underground). I don't know of anyone using depleted uranium - should be even better , but there are safety issues with machining it.
Because of the type of energy that Gamma radiation is when it hits matter that matter absorb the radiation then re emits it. The the amount that is absorbed depends on the energy of the gamma particle and the type of the material and the individual energy level of the piece of matter that it hit. But there will always by some energy remitted therefore even with 2 miles of lead there will be some energy getting through. The best idea to lessen the effect of radiation to get the most dense matter you can there fore there lead in this case is the best at eabsorbinggamma rays. or better yet would be depleted uranium as it mainly gives off alpha and beta radiation while having the greatest effect on the gamma radiation
That depends on the energy level. Some gamma radiation is so intense it passes completely through the Earth. Some can be absorbed by a thin sheet of lead.
Gamma radiation is typically shielded against using heavy elements. Lead has the highest atomic number out of all the truly stable elements (and is thus the heaviest), and is fairly cost-efficient, so is the most frequently used element for this purpose.
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Nothing.
All of the above just attenuate it.
Lead is the best, though.
If you have lots of space, a few feet of concrete is cheaper than several inches of lead, and regular dirt is even cheaper (e.g. bury the source underground). I don't know of anyone using depleted uranium - should be even better , but there are safety issues with machining it.
Because of the type of energy that Gamma radiation is when it hits matter that matter absorb the radiation then re emits it. The the amount that is absorbed depends on the energy of the gamma particle and the type of the material and the individual energy level of the piece of matter that it hit. But there will always by some energy remitted therefore even with 2 miles of lead there will be some energy getting through. The best idea to lessen the effect of radiation to get the most dense matter you can there fore there lead in this case is the best at eabsorbinggamma rays. or better yet would be depleted uranium as it mainly gives off alpha and beta radiation while having the greatest effect on the gamma radiation
That depends on the energy level. Some gamma radiation is so intense it passes completely through the Earth. Some can be absorbed by a thin sheet of lead.
B. lead.
alternatively, concrete or depleted uranium.
Gamma radiation is typically shielded against using heavy elements. Lead has the highest atomic number out of all the truly stable elements (and is thus the heaviest), and is fairly cost-efficient, so is the most frequently used element for this purpose.
Out of the choices, B- Lead.