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Posted by on Wednesday, January 14, 2009 at 11:57pm.

for gamma radiation 1rad=1rem, but for alpha radiation 1 rad=20rem. Why is there a difference?

  • Physics - , Thursday, January 15, 2009 at 11:27am

    Alpha radiation is more damaging per unit of energy deposited in living tissue than is beta or gamma radiation. The "quality" factor of twenty used for alpha radiation is somewhat arbitray and has changed over the years. A factor of ten is used for neutrons.

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