Worksheets4TH YEAR QUIZBOWL HARD ROUND
Total questions: 10
Worksheet time: 2mins
The reduction in the inensity of an x-ray beam as it passes through material is termed
scattering
absorption
attenuation
divergence
The largest amount of diagnostic x-ray absorption is most likely to occur in which of the following tissues?
Lung
Adipose
Muscle
Bone
The automatic exposure device that is located immediately under the x-ray table is the
ionization chamber
scintillation camera
photomultiplier
photocathode
The photoelectric effect is an interaction between an x-ray photon and
another photon
an inner-shell electron
a nucleus
an outer-shell electron
Any wall that the useful x-ray beam can be directed toward is called a
scattered barrier
leakage barrier
primary barrier
secondary barrier
Is the transfer of some of the incidentparticle’s energy to electrons in theabsorbing material, promoting them toelectron orbitals farther from the nucleus(i.e., higher energy levels).
EXCITATION
ionization
radiative losses
RADIATION
Occurs when the incident x-ray isabsorbed into one of the inner electronshells and emits a photoelectron
Pair production
Partial Absorption
Photoelectric
Compton
A Type of scattering where in thereis a change in the direction of anincident x-ray without a loss of energy.
Inelastic interaction
Compton interaction
Rayleigh scattering
non-classical
GERMAN WORD FOR "BRAKING RADIATION "
ionization
EXCITATION
BREMSSTRAHLUNG
RADIATION
Which of the following is recommended for the pregnant radiographer?
Wear two dosimeters and switch their positions appropriately
Change dosimeters weekly
The pregnant radiographer must leave radiation areas for duration of the pregnancy
Wear a second dosimeter under the lead apron
