Content Pertaining to CT NMTCB UPDATED ACTUAL Questions and CORRECT Answers

Content Pertaining to CT NMTCB UPDATED ACTUAL Questions and
CORRECT Answers

produced by accelerating elec trons with a high voltage
X-ray Production
and allowing them to collide with the focal spot.
The opening collimates the beam but must first pass
a layer of aluminum
through
Aluminum Gas Xenon detectors




Computed Tomography




Poly-energetic X-ray

Increasing the voltage (kVp) to the tube
As kVp increases
Brumsstrahlung


Shielding


milli-amperes per second (mAs)
the greater the current
the greater the mAs
kVp
mAs

Detecting the xrays

, Filters out low energy x- penetrationdefines the amount of xrays
rays Gas Xenon detectors
machine that uses xrays, a powerful Scintallation detectors
form of electromag-netic energy

combines x radiation and radiation
detectors coupled with a computer to
create cross sectional image of any
part of the body
produced in a range of keV as the
electron beam sticks and strikes the
tungston anode
generates greater energized poly-
energetic x-ray energyK and L
characteristic x-rays are produced
occurs at all levels of kVp
The lead housing that surrounds the x-
ray tubes becausexrays occur in every
direction and to absorb secondary
xrays
the quantity of
xrays produced more
xrays produced within
a preset kVp
the greater the dose
to the patient applied
to increase the xrays