a target is shielded from a radioactive sample by a sheet of metal. what kind of radiation can pass through…
a target is shielded from a radioactive sample by a sheet of metal. what kind of radiation can pass through the sheet of metal and hit the target?\no gamma rays only\no gamma rays and beta particles\no beta particles only\no beta particles and alpha particles
Answer
Brief Explanations:
Alpha particles can be stopped by a sheet of paper or a thin layer of metal. Beta particles can be stopped by a few millimeters of aluminum. Gamma rays are highly penetrating and require thick layers of dense materials like lead or thick sheets of metal to be significantly attenuated. So a sheet of metal can stop alpha and most beta particles, but gamma rays can pass through.
Answer:
A. gamma rays only