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Questions and Answers
What is the result of a positive beta particle coming to the end of its range in a positron emitter?
What is the result of a positive beta particle coming to the end of its range in a positron emitter?
- It is absorbed by the surrounding material
- It emits a gamma ray
- It combines with a negative electron (correct)
- It decays into a neutron
What is the energy equivalent to the mass of each electron in a positron emitter?
What is the energy equivalent to the mass of each electron in a positron emitter?
- 511 keV (correct)
- 360 keV
- 280 keV
- 250 keV
What type of radiation is emitted when a positive electron and a negative electron annihilate each other in a positron emitter?
What type of radiation is emitted when a positive electron and a negative electron annihilate each other in a positron emitter?
- Beta radiation
- Annihilation radiation (correct)
- Gamma radiation
- Alpha radiation
What is the process by which a daughter nuclide emits K-characteristic X-rays?
What is the process by which a daughter nuclide emits K-characteristic X-rays?
What is the energy of the gamma rays emitted by Iodine-131 (131I)?
What is the energy of the gamma rays emitted by Iodine-131 (131I)?
What is the decay mode of Iodine-123 (123I)?
What is the decay mode of Iodine-123 (123I)?
What is the primary function of the focusing electrode in a photomultiplier tube?
What is the primary function of the focusing electrode in a photomultiplier tube?
What is the outcome of the collision between the primary electrons and the first dynode surface?
What is the outcome of the collision between the primary electrons and the first dynode surface?
What is the purpose of minimizing scattered gamma photons in gamma imaging?
What is the purpose of minimizing scattered gamma photons in gamma imaging?
What is the final destination of the electrons in a photomultiplier tube?
What is the final destination of the electrons in a photomultiplier tube?
What is the gamma image formed on in a conventional gamma camera?
What is the gamma image formed on in a conventional gamma camera?
What does the formation of a gamma image represent?
What does the formation of a gamma image represent?
What is the half-life of 99mTc?
What is the half-life of 99mTc?
What type of decay occurs in radionuclides with a neutron deficit?
What type of decay occurs in radionuclides with a neutron deficit?
What is the result of β+ decay in radionuclides with a neutron deficit?
What is the result of β+ decay in radionuclides with a neutron deficit?
What happens to the atomic number of an atom that undergoes β+ decay?
What happens to the atomic number of an atom that undergoes β+ decay?
What is the result of K-electron capture in radionuclides with a neutron deficit?
What is the result of K-electron capture in radionuclides with a neutron deficit?
What is the end product of the decay of 99Tc?
What is the end product of the decay of 99Tc?
