LRA 211 TEST QUESTIONS AND
ANSWERS
What percentage of interactions at the target make heat instead of x-rays? - ANSWER-
99%
Anode heel effect - ANSWER-Due to the geometry of the angled anode target, the
radiation intensity is greater on the cathode side.
Cathode - ANSWER-The negative electrode in the x-ray tube
What makes up the cathode? - ANSWER-filament and focusing cup
What is produced at the atomic level? - ANSWER-X-rays
Who based the structure of an atom off the solar system? - ANSWER-Ernest Rutherford
Who believed atoms had 3 fundamental particles? - ANSWER-Niels Bohr
Fundamental particles of an atom - ANSWER-electron, proton, neutron
What does a nucleus consist of? - ANSWER-protons and neutrons
Charges of subatomic particles - ANSWER-Proton:+ , Electron:- , Neutron: neutral
How is the nucleus held together? - ANSWER-strong nuclear force creating a Binding
Energy
Electron binding energy depends on what? - ANSWER-how close it is to the nucleus
AND how many protons in the atom
Two types of atomic interactions in the x-ray tube - ANSWER-characteristic and
bremsstrahlung
Characteristic Interaction - ANSWER-An electron gets ejected, another electron takes
its place
Bremsstrahlung Interaction - ANSWER-Energy of atom decreases. (Atom loses energy)
ANSWERS
What percentage of interactions at the target make heat instead of x-rays? - ANSWER-
99%
Anode heel effect - ANSWER-Due to the geometry of the angled anode target, the
radiation intensity is greater on the cathode side.
Cathode - ANSWER-The negative electrode in the x-ray tube
What makes up the cathode? - ANSWER-filament and focusing cup
What is produced at the atomic level? - ANSWER-X-rays
Who based the structure of an atom off the solar system? - ANSWER-Ernest Rutherford
Who believed atoms had 3 fundamental particles? - ANSWER-Niels Bohr
Fundamental particles of an atom - ANSWER-electron, proton, neutron
What does a nucleus consist of? - ANSWER-protons and neutrons
Charges of subatomic particles - ANSWER-Proton:+ , Electron:- , Neutron: neutral
How is the nucleus held together? - ANSWER-strong nuclear force creating a Binding
Energy
Electron binding energy depends on what? - ANSWER-how close it is to the nucleus
AND how many protons in the atom
Two types of atomic interactions in the x-ray tube - ANSWER-characteristic and
bremsstrahlung
Characteristic Interaction - ANSWER-An electron gets ejected, another electron takes
its place
Bremsstrahlung Interaction - ANSWER-Energy of atom decreases. (Atom loses energy)
