Exam 2 Ch 6-

Question 1

x-rays are produced when-

Answer 1

fast moving electrons slam into a metal object

Question 2

kinetic energy of an electron is converted into-

Answer 2

electromagnetic energy

Question 3

function of x-ray imaging sys.-

Answer 3

provide controlled flow of electrons intense enough to produce x-ray beam appropriate for imaging

Question 4

diagnostic units operate at-

Answer 4

-25 - 15 kVp
-100 - 1200 mA

Question 5

general purpose room has both-

Answer 5

fluoro & radiography

Question 6

fluoro tube usually located-

Answer 6

under table

Question 7

radiographic tube is attached to-

Answer 7

movable crane over head

Question 8

special tube designs are used for-

Answer 8

cardiovascular & special procedures

Question 9

medical x-ray units are-

Answer 9

diagnostic or therapeutic

Question 10

x-ray table sometimes referred to as-

Answer 10

the couch

Question 11

most x-ray tables are-

Answer 11

free floating (does not change alignment of CR to IR)

Question 12

purpose of the x-ray table (2)-

Answer 12

-support the patient
-provide mechanical support

Question 13

x-ray table must be-

Answer 13

-of uniform thickness (doesn’t add anything to img.)
-radiolucent (allows x-rays to pass through)

Question 14

most x-ray tables are made of-

Answer 14

carbon fiber allowing for a stronger surface that doesn’t absorb much x-ray (termed radiolucent)

Question 15

accessories for todays x-ray tables-

Answer 15

-footboards
-shoulder boards

Question 16

movable sliding tray beneath the table-

Answer 16

bucky (holds IR in place)

Question 17

in R/F rooms, the bucky must be moved to-

Answer 17

the foot of the table during fluoro exams

Question 18

opening beneath the table is covered w:-

Answer 18

bucky slot cover

Question 19

fluoro tables are identified by-

Answer 19

how the tilt

Question 20

3 basic principle components to the x-ray imaging. sys.-

Answer 20

-operating console
-x-ray tube
-high voltage generator

Question 21

operating console used to-

Answer 21

-establish conditions of exposure
-control tube current & voltage

Question 22

operating console controls are usually available for-

Answer 22

-major & minor kVp adjustments
-mA setting
-exposure time

Question 23

all except one of the electric circuits connecting meters & consoles are-

Answer 23

low voltage to prevent hazardous shock

Question 24

line monitor & kVp meter in a schematic drawing are measured in-

Answer 24

volt meters