Nucmed - Reviewer 1

Who invented the Anger Scintillation Camera?

• Hal Anger
• Marie Curie
• Wilhelm Roentgen
• Henri Becquerel

What is the main function of a gamma camera?

• To provide an image of the radionuclide in a patient
• To generate electricity from radiation
• To store radioactive materials safely
• To measure air pollution levels

Which of the following is NOT a type of gas-filled detector?

• Scintillation detector
• Ionization chamber
• Proportional counter
• Geiger-Muller counter

What material is commonly used in scintillation crystals for gamma cameras?

• Sodium Iodide (NaI) with Thallium
• Lead
• Aluminum
• Carbon

What does a proportional counter primarily detect?

• Alpha and beta radiation
• X-rays only
• Sound waves
• Ultraviolet light

What is the half-life of Technetium-99m?

• 6 hours
• 24 hours
• 12 days
• 5 minutes

What is the purpose of a collimator in a gamma camera?

• To separate gamma rays and reduce scatter
• To generate radiation
• To cool the detector
• To amplify signals from the crystal

Which of these radionuclides is commonly used for myocardial imaging?

• Thallium-201
• Iodine-131
• Xenon-133
• Chromium-51

What is the primary purpose of a Pulse Height Analyzer (PHA)?

• To determine which portion of the detected spectrum is used for imaging
• To measure the thickness of radiation shielding
• To calibrate the gamma camera automatically
• To adjust the temperature of the detector

What is the main gas used in Geiger-Muller counters?

• Argon
• Oxygen
• Carbon Dioxide
• Hydrogen