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Flashcards in X-ray Machines Deck (10)
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1

What is the major limiting factor of output

Maximum mAs machine capable of producing

2

Variation in output of machines (3)

Portable - limited; req. longer exposure
Mobile - output up to 300mA
Fixed - output up to 1250mA

3

Small animal KV range

50-70

4

Function of line voltage compensator

Compensates for fluctuations in mains supply which may cause inconsistent x-ray output

5

What factors influence quantity of x-rays produced

Current and exposure time
Use of higher current reduces exposure time

6

Exposure button requirement

Must be outside of controlled area
If on cable, must be at least 2m long

7

Define prep stage

Filament heats
Anode rotates

8

Define exposure stage

Voltage applied across tube

9

Reasons for adjustment of voltage

Determines penetrative power of beam
Higher voltage for more dense structures

10

Reasons for adjustment of current

Alters degrees of filament heating
Higher current for finer detail