4. A gamma source used in radiography sits in a cylindrical shielded container of lead. The wall thickness is 22 cm, and a gamma field of 10 μSv/h above background can be detected on the outside wall of the container. The HVL of lead for this source is 11 mm. What radiation field would you expect at the same distance from the source if it were not shielded?
4. A gamma source used in radiography sits in a cylindrical shielded container of lead. The wall thickness is 22 cm, and a gamma field of 10 μSv/h above background can be detected on the outside wall of the container. The HVL of lead for this source is 11 mm. What radiation field would you expect at the same distance from the source if it were not shielded?
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Transcribed Image Text:Now, solve the following problems involving radiation:
4. A gamma source used in radiography sits in a cylindrical shielded container of lead. The wall thickness is 22 cm, and a gamma
field of 10 μSv/h above background can be detected on the outside wall of the container. The HVL of lead for this source is 11
mm. What radiation field would you expect at the same distance from the source if it were not shielded?
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