Radiology Quiz 3

who regulates how x-ray equipment is used

Dental x-ray machines may be used to expose ___ receptors or ___ receptors

what are 2 examples of extra oral units

what 3 components do x-ray machines have

what houses the vacuum tube, collimator, pID

what house the electrical wires, suspends and positions the tubehead

what contains the on/off switch, control devices, exposure button

what allows regulation of the X-ray machine

what is used to hold and align intramural X-ray films in the mouth

what is used to help the radiographer position the PID

what is a metal plate with an opening that can be used to restrict the size of beam and works with the beam alignment device

what is the recording medium where images are recorded

what are the 4 basic components of X-ray film

what provides strength and support for emulsion and is contracted to withstand heat, moisture, chemical exposure

what covers both sides of film base and is added before emulsion (attaches emulsion to base)

what is a delicate homogenous mixture of gelatin and silver halide crystals attached to both sides of film base by adhesive layer

where are the silver halide crystals suspended in gelatin where they absorb radiation and store the energy

what gives film greater sensitivity to xradiation

what is the thin coating over emulsion that protects it from manipulation, mechanical or processing damage

what absorbs x-radiation during exposure and stores energy and varies depending on the density of the objects exposed

if silver halide crystal are not energized and image areas show up more radio opaque than others, then the was the density of the object more or less dense

what invisible image remains invisible in the emulsion until it undergoes chemical processing procedures

what are irregularities in the lattice structure of the exposed crystals and attracts Ag

what are aggregates of Ag called

intraoral film packets placed inside the mouth come in 5 sizes and have 4 components...

what 2 things protect the film from light

what shields the film from secondary, back scatter, radiation "fog"

what seals the film packet, protects it from light and saliva, and it's solid white side faces the tubehead

what type of film is used to examine the entire tooth and 2mm of the supporting bone (size 1 or 2)

what type of film is used to examine the crowns and inter proximal spaces of both the maxillary/mandibular teeth (size 2)

what type of film is used to examine large areas of the maxilla or mandible (size 4)

___ ___ is the amount of radiation required to produce a radiograph of standard density

what is determined by the size of the silver halide crystals, thickness of the emulsion, and the presence of radiosensitive dyes

what determines how much radiation and how much exposure time is necessary to produce an image

faster film requires___radiation exposure because the film responds faster

__-speed film; nicer image, slower than E or F

__-speed film is no longer available

__-speed film is grainier image than D-speed, but 60% less radiation exposure

what type of film is used to examine large areas of the jaws and teeth

what type of film gives a wide view of maxilla and mandible and includes both TMJ joints

what type of film is used primarily for diagnosis of extraction of teeth, placement of implants, treatment of TMD, and orthodontics

what type of film is of the profile of a patient, including entire maxillofacial region of bony and soft tissues