221 Week 1 Quiz Review Flashcards
Active element storage phosphor?
Barium fluoride
The [blank] converts electric energy to electrical signal?
Photo-conductor
Look Up table does what?
Gray scale image scale value
Each square in a matrix is what
A pixel / picture element
In reference to PSP image capture to release the latent image which device is scanned over
Focus laser
Exposure latitude is to Cr as [blank] is to Dr
Dynamic range
How dark or light an image is on a display monitor is what?
Brightness
[Not true] statement (dealing with matrix and, f.o.v)
Changing matrix /f.o.v will not change size of pixel
Another Name for film
Conventional
Histogram displays the useful signal how?
Maximum and minimum
High kyp [blank] the histogram
Narrows
Cr(computed) requires image through what?
Use of phosphor plate
All a following form PACs except:
- Independent Kip and millampere stations
T/f - (similar to Cr ) Dr can use the same existin diagnostic devices we use?
F.
Which of the following statement isn’t true?( exposure index; exposure patients)
Exposure index refers exposure to patients l
T/f - histogram is anatomy specific
T
Suppressing frequencies in a area of interest, is?
Masking
Magnification is known as what?
Zooming / zoom
Who’s responsible to make sure demographic is correct?
Ours/mine- the radiographers
High passing filtering useful for enhancing what?
Tissues
Changing slope of Look Up table does what?
Contrast (changes contrast)
Cesium iodide:
Indirect
Del=
Detector element
The difference between actual exposure (kind) and target exposure (ktgt)
Deviation index
