Exposures II Chapter:41 Computed
Tomography
The____of the CT unit contains the x-ray tube. - correct answer ✔✔gantry
A series of tissue density values that evolved for CT measurements is called_______units. - correct
answer ✔✔housfield
The CT_____gives the tech access to the software program, data acquisition, and data display. - correct
answer ✔✔console
the most recent generation of CT scanners use a______motion - correct answer ✔✔helical
the range of CT numbers or HU varies from -1000 to______ - correct answer ✔✔+3000
For a CT photon to be _______, it must enter the detector, be absorbed by the detector material, and be
converted to light and then electrical energy as a signal - correct answer ✔✔measured
the CT radiographer usually varies the______ to control the primary beam. - correct answer ✔✔mA
The HU of water______ - correct answer ✔✔Zero
current solid state detectors utilize rare earth ceramic______ - correct answer ✔✔scintillators
The CT_______is made of carbon graphite, motor driven, and rated for maximum weight - correct
answer ✔✔table
the relationship between table travel and beam width - correct answer ✔✔pitch
Tomography
The____of the CT unit contains the x-ray tube. - correct answer ✔✔gantry
A series of tissue density values that evolved for CT measurements is called_______units. - correct
answer ✔✔housfield
The CT_____gives the tech access to the software program, data acquisition, and data display. - correct
answer ✔✔console
the most recent generation of CT scanners use a______motion - correct answer ✔✔helical
the range of CT numbers or HU varies from -1000 to______ - correct answer ✔✔+3000
For a CT photon to be _______, it must enter the detector, be absorbed by the detector material, and be
converted to light and then electrical energy as a signal - correct answer ✔✔measured
the CT radiographer usually varies the______ to control the primary beam. - correct answer ✔✔mA
The HU of water______ - correct answer ✔✔Zero
current solid state detectors utilize rare earth ceramic______ - correct answer ✔✔scintillators
The CT_______is made of carbon graphite, motor driven, and rated for maximum weight - correct
answer ✔✔table
the relationship between table travel and beam width - correct answer ✔✔pitch
