29. CT: THIRD GENERATION CT SCANNER

Question 1

1. What does this image show?

Answer 1

• this is a third generation CT Scanner
• it came about in 1976

Question 2

2. How many detectors does this scanner have?

Answer 2

• multiple
• it originally had up to 288 detectors
• newer CT scanners have over 700 detectors that are
  arranged in an arc

Question 3

3. What type of beam does this scanner emit?

Answer 3

• it emits a Fan-shaped X-Ray beam

Question 4

4. What kind of tube-detector movements does this scanner have?

Answer 4

• Rotations

Question 5

5. What is the average duration of the scan?

Answer 5

• approximately 5 seconds