Radiology quiz 1

X Ray

Form of electromagnetic energy, matter, ionizing

Roentgen

Discovered X Rays

More Energy

Short Wavelength - High frequency

Less energy

Long Wavelength - Low frequency

Background radiation

Can come from cosmic (outer space), terrestrial (earth), and Internal (our body), makes up 80-83% of our yearly exposure

What type of radiation are x rays

Artifically produced, not background radiation

Anode

Tungsten target serves as a focal spot for electrons and x ray photons

X ray production

Less than 1 percent of energy is converted to x rays, the remaining 99 is lost as heat

Radioplaque

Low density; lighter. Metals on x-ray (stainless steel crown, gold filling, any metals)

High density & low contrast

Darker many shades of grey

Perpendicular central ray

less distortion in images, and for opening contacts when checking for decay

As low as reasonably achievable

ALARA, for X ray exposure to be kept minimum

Latent Image

Invisible image before film has been processed

Dark room required

During manual processing, rapid processing manually, and auto processer without daylight loader

Bitewings

X ray type to monitor decay and periodontal disease

The property of dentist

Radiographs, but patients have right to copy

Dentist

only one who can interpret or diagnose x rays

Genetic effects

Damage to hereditary material thats not expressed but passed down to future generations

Minimal risk

Risk from radiation exposure

Filtration

filter out long wavelengths, low energy x rays around the beam

Radiosensitive

Blood cells are the most ___

Image that is more dense

Happens due to object with low density, makes area on film have high level