worksheet RADR
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Chapter 5 Worksheet
1. Describe the purpose of each of the following parts of the x-ray tube housing
a. Lead lining
b. Oil bath
c. Cooling fan
2. Define leakage radiation
3. What is the main purpose of the x-ray tube (also called the envelope enclosure)?
4. What is the purpose of the target window and why does it have a thinned section?
5. What happens to the electrons that reach the anode and do not interact to produce xrays?
6. Define where and why each of the following elements are used in the anode.
a. Copper
b. Molybdenum
c. Tungsten
d. Rhenium
7. Why is the rotating anode more efficient at handling high heat producing exposures?
8. What is the difference between the actual and effective focal spots?
9. Describe two ways that the effective focal spot can be made smaller?
10. What is the advantage of a small effective focal spot?
11. Using the principle of the anode heel effect, which end of the x-ray tube would the
patientàhead be positioned for a femur exam? (anode or cathode) Why?
12. What two elements make up the cathode wires and why?
13. Define space charge and space-charge effect.
14. What are three major causes of x-ray tube failure?
15. List three ways tube life can be extended.
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1. Describe the purpose of each of the following parts of the x-ray tube housing
a. Lead lining
b. Oil bath
c. Cooling fan
2. Define leakage radiation
3. What is the main purpose of the x-ray tube (also called the envelope enclosure)?
4. What is the purpose of the target window and why does it have a thinned section?
5. What happens to the electrons that reach the anode and do not interact to produce xrays?
6. Define where and why each of the following elements are used in the anode.
a. Copper
b. Molybdenum
c. Tungsten
d. Rhenium
7. Why is the rotating anode more efficient at handling high heat producing exposures?
8. What is the difference between the actual and effective focal spots?
9. Describe two ways that the effective focal spot can be made smaller?
10. What is the advantage of a small effective focal spot?
11. Using the principle of the anode heel effect, which end of the x-ray tube would the
patientàhead be positioned for a femur exam? (anode or cathode) Why?
12. What two elements make up the cathode wires and why?
13. Define space charge and space-charge effect.
14. What are three major causes of x-ray tube failure?
15. List three ways tube life can be extended.
Purchase answer to see full
attachment
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15 Questions
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