LXMO CORE Exam Questions With Correct
Answers
Focusing Cup - answerDirects electrons toward target
Thermionic Emission - answerFilament electrons are boiled off producing an electron cloud
Bremsstrahlung - answerAKA Breaking Radiation. Occurs when a high speed electron from
the cathode is defl...
BRIGHTSTARS EXAM STUDY SOLUTIONS 8/15/2024 2:05 PM
LXMO CORE Exam Questions With Correct
Answers
Focusing Cup - answer✔✔Directs electrons toward target
Thermionic Emission - answer✔✔Filament electrons are boiled off producing an electron cloud
Bremsstrahlung - answer✔✔AKA Breaking Radiation. Occurs when a high speed electron from
the cathode is deflected by the nucleus of a target atom
Characteristic Radiation - answer✔✔Occurs when cathode electrons dislodge inner orbit
electrons from the target atoms.
Anode Heel Affect - answer✔✔Reduction of beam intensity due to interaction with heel of target
Quality - answer✔✔Refers to penetrating power of the beam
Quantity - answer✔✔Refers to the number of xray photons in the useful beam
Primary Beam - answer✔✔Beam exiting the tube before it gets to the patient
Remnant Radiation - answer✔✔Photons that are exiting patient before getting to the IR
Inverse Square Law - answer✔✔Intensity is inversely proportional to the square of the distance
Attenuation - answer✔✔Absorption of the beam by the patient
Compton Effect - answer✔✔Incident xray interacts with outer shell electron and ionizes the
atom
Compton Effect - answer✔✔What is the single most contribution to occupational exposure?
Photoelectric Absorption - answer✔✔Incident xray is totally absorbed during the exposure, K
shell electron is ejected.
Coherent Scatter - answer✔✔Incident xray interacts with target atom, atom becomes excited and
releases energy in the same wavelength as original but in a different direction
Deterministic - answer✔✔A high dose of radiation renders an early response
Stochastic - answer✔✔A low dose of radiation renders a late response
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