X-rays were discovered by... - Roentgen in 1895 in Germany
The Joint Review Committee on Education in Radiologic Technology (JRCERT) is the...
- organization that accredits schools for radiologic technologists
The largest professional organization for radiologic technologists is the... - ASRT
The x-ray room has an area that protects the limited operator from scatter radiation and
is called... - the control booth
Mechanism on the x-ray tube that provides a stop in a specific location - detent
The image that has been exposed on the IR but has not yet been processed is called -
latent image
The absorption of x-rays by matter is called - attenuation
The IR system consists of.. - cassette and phosphor plate
A type of filmless system that produces digital images is called - computed radiography
(CR)
The source of x-rays is - x-ray tube
Unwanted image exposure that is caused by scatter x-rays - radiation fog
Surrounds the x-ray tube and is lined with lead - tube housing
Opening where the x-rays exit the tube - tube port
X-rays exit the tube port via - the tube window
What is the name of the radiation that exits the patient? - remnant radiation
The x-ray beam that leaves the tube is called - primary radiation
Primary x-ray beams that leave the body and travel in all directions is called - scatter
radiation
When a neutral atom gains or loses an electron, the atom is said to be... - ionized
, X-rays consist of what type of energy - electromagnetic energy
X-rays with greater energy have what size wavelengths - shorter
The smallest possible unit of electromagnetic energy is the - photon
The common unit of measure for the potential difference across an x-ray tube is the -
ohm
The purpose of a transformer is to - increase or decrease voltage
When an atom gains or loses an electron it is called an - ion
One of the most important elements in radiography that is used to create x-rays is -
tungsten
Roentgen discovered x-rays while working with a - crookes tube
Free electrons for x-ray production come from the - filament
The creation of the space charge in the x-ray tube produces - thermionic emission
The majority of photons in the x-ray beam are created by which process? -
Bremsstrahlung interactions
More than 99% of the energy of the electron stream is converted to - heat
The high speed rotation of the anode enables - greater dissipation of heat from
technical factors
The anode heel effect is a phenomenon of x-ray that results in - uneven distribution of
radiation, more towards cathode
The penetrating power of the x-ray beam is controlled by varying the - kVp
The rate of current flow across the x-ray tube is measured by - mA
The unit used to indicate the total quantity of x-ray exposure is - mAs
The device for removing long-wavelength radiation from the primary beam is the - filter
The purpose of the rotating anode is - to increase heat capacity of the anode
Image sharpness is determined by - the size of the effective focal spot
Above 70 kVp, what percentage of photons are created by bremstrahlung? - 85%
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