Eyes Have It
II Components
Safety & Protection
Digital-related
Hodge Podge
100
Cones are used for vision, name the 2 terms.
What is photopic and daylight vision?
100
Input phosphor is coated with this material
What is cesium iodide
100
In II fluoroscopic procedures using _____ mode would increase dose to patient.
What is magnification mode?
100
In flat-panel digital fluoroscopy, the use of magnification mode will result in _____ dose to the patient.
What is no additional dose?
100
The x-ray tube filament is made of this material
What is tungsten?
200
Night vision is sensitive to ____ light levels
What is low light levels?
200
The diameter range of the input phosphor
What is 10 to 35 cm?
200
The minimum SSD during mobile fluoroscopy.
What is 30 cm?
200
The phosphor used for an indirect fluoroscopic system.
What is cesium iodide?
200
The increase in brightness due to the acceleration of photoelectrons.
What is flux gain?
300
The specific location where you can find a large concentration of cones in the eye.
What is fovea centralis (retina)
300
The charge to the electrostatic lenses
25 to 35 kVp (25,000 to 35,000 volts)
300
This is the primary responsibility of the RT during fluoroscopic procedures.
What is to ensure everyone in the room has lead apron?
300
The typical mA setting used during flat panel fluoroscopic procedures.
What is radiographic mode in the range of 250 mA?
300
Identify the purpose of this tool
What is a resolution tool?
400
Name a corneal malfunction.
What is myopia, hyperopia, presbyopia?
400
Where is the anode in an image intensifier
What is between the electrostatic focusing lens and output phosphor?
400
The drape used during II fluoroscopy is made of _____ Pb/eq.
What is 0.25 mm?
400
The "turn on" time used during pulse mode in digital fluoroscopy (time and term).
What is interrogation time and 1 ms?
400
The 1st fluoroscope was developed by ___ in___
Who is Thomas Alva Edision in 1896?
500
In relation to vision, name 3 functions of the eye.
What is to catch light, transform into nervous signal and transmit to brain for processing
500
Name two functions of the output phosphor
What is to convert electrons to visible light and increase number of light photons?
500
Table top exposure during fluoroscopy should be not higher than ____.
What is 0.1 Gy/min (or 100 mGy/min)?
500
The light signal from the TFT is transferred to ___.
What is the Analog to Digital Converter?
500
Image intensification tubes were developed in ___.
What is 1948?