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Boo asked in Science & MathematicsPhysics · 10 years ago

x-rays: why is there a lead screen in front of the patient?

also: why is there a gap in the lead lead screening, opposite the patients chest?

thank you!

its homework btw :(

3 Answers

  • 10 years ago
    Best Answer

    Xrays, being a form of weakly ionizing radiation, can cause problems with too much exposure to them (which is why Xray technicians often leave the room while actually triggering the equipment). Lead vests serve to absorb the rays in areas which don't need to be imaged, so that the patient isn't exposed to radiation where they don't have to be.

    As to the "gap", the xrays have to get through the patient, and into the imaging portion of the machine (old fashioned ones have film there) to be registered. As lead impedes the rays' passage, one has to provide the gap so that any xrays entering the patient's body have a good chance of making the image needed.

  • 10 years ago

    1. Why is there a lead screen in front of the patient?

    In order to ABSORB the x-rays and prevent them from interacting with the cells in parts of the body that do not require to be viewed.

    2. no idea.

  • 10 years ago

    X-rays, while valuable medical tools, are still a form of radiation and can be dangerous with prolonged exposure. Lead screens block x-rays, and in so doing, minimize the patient's exposure to too much harmful radiation.

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