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COPY: Nuclear Medicine Instrumentation Quiz

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COPY: Nuclear Medicine Instrumentation Quiz

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Questions and Answers

What is the function of a collimator in nuclear medicine instrumentation?

To establish a geometric connection between the crystal's contact point and the patient's gamma ray emission. (correct)

To determine the direction of flight of gamma rays.

To discriminate between scattered and nonscattered photons.

To absorb gamma rays that are off-angle.

Which component of collimators determines the resolution and sensitivity of the detector?

Holes (correct)

Diameter

Lead

Septal thickness

What percentage of gamma rays are absorbed by collimator septa?

75%

50%

99.9% (correct)

90%

What type of collimation is used by collimators?

Absorptive collimation Signup and view all the answers

What is the material of collimator septa?

Lead Signup and view all the answers

What is the purpose of collimators in nuclear medicine instrumentation?

To establish a geometric connection between the crystal's contact point and the patient's gamma ray emission. Signup and view all the answers

How do collimators discriminate between gamma rays carrying 'good' information and 'bad' information?

Collimators discriminate based on the direction of flight, not on scattered vs nonscattered photons. Signup and view all the answers

What determines the resolution and sensitivity of the detector in collimators?

The number of holes and the hole characteristics (diameter, length, septal thickness). Signup and view all the answers

What is the material of collimator septa?

Lead. Signup and view all the answers

What percentage of gamma rays are absorbed by collimator septa?

99.9%. Signup and view all the answers

COPY: Nuclear Medicine Instrumentation Quiz

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Podcast

Questions and Answers

What is the function of a collimator in nuclear medicine instrumentation?

Which component of collimators determines the resolution and sensitivity of the detector?

What percentage of gamma rays are absorbed by collimator septa?

What type of collimation is used by collimators?

What is the material of collimator septa?

What is the purpose of collimators in nuclear medicine instrumentation?

How do collimators discriminate between gamma rays carrying 'good' information and 'bad' information?

What determines the resolution and sensitivity of the detector in collimators?

What is the material of collimator septa?

What percentage of gamma rays are absorbed by collimator septa?

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