FRCR MCQ---GRID

MCQ --GRID

88.True regarding grid----

a.strips are slightly angled in cross-section of focused grid

b.parallel grid has well defined convergent line

c.the focusing range  is fairly narrow for  a low-ratio grid

d.parallel grid is frequently used in fluoroscopic spot film devices

e.grid cassette is usually used for portable radiography

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Q AND A OF PREVIOUS BLOG==============

  MCQ Computed radiography

119.True regarding computed radiography 

a.the laser light and stimulated emission has same wavelength

b.a photostimulable phosphor have a very large dynamic range compared to film

c.the photostimulable phosphor can record exposure difference of about 10000:1

d.dynamic range of photostimulable phosphor  is non linear

e.wide latitude system decrease the need for repeat exposure

119.bce---The laser light and stimulated emission has different  wavelength.Dynamic range of photostimulable phosphor  is linear. ---[Chapter 9,Page 133-35,  4^th edition ,1990  reprinted 2010 , Christensen’s Physics of Diagnostic radiology].