intro-rad (the x-ray machine) midterm

what are the 3 main component of x-ray imaging system

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

protective housing

X-rays that escape through the
protective housing are called leakage radiation;Properly
designed protective housing reduces the level of
leakage radiation to less than 1 mGya/hr at 1 m when
operated at maximum conditions.

Glass or Metal Enclosure

The enclosure maintains a
vacuum inside the tube. This vacuum allows for more
efficient x-ray production and a longer tube life.the electron flow
from cathode to anode is reduced, fewer x-rays are
produced, and more heat is generated.

Filament.

is a coil of wire similar to that in a kitchen
toaster, but it is much smaller. The filament is approximately 2
mm in diameter and 1 or 2 cm long.

Focusing Cup.

The filament is embedded in a metal shroud called?Because all of the electrons accelerated from cathode to anode are electrically negative,

what is the two primary parts of cathode?

filament and focusing cup

Target

The targets the area of the anode struck
by the electrons from the cathode. In stationary
anode tubes, the target consists of a tungsten
alloy embedded in the copper anode

stator

The part outside the glass or metal enclosure,
called the and consists of a series of
electromagnets equally spaced around the
neck of the tube.

rotor.

Inside the enclosure is a
shaft made of bars of copper and soft iron
fabricated into one mass.

what are the 3 parts of "external" components of x-ray tube?

the support structure,the protective housing,the glass or metal enclosure

and what are the "internal" structure of x-ray tube?

anode and cathode

target consist of what ?

tungsten alloy embedded in copper anode

what is anode?

is the positive side of x-ray tube: it conduct electricity and radiates heats and contains the target

what is cathode

is the negative side of x-ray tube

the target of rotating anode tube is powered by what ?

induction motor

The focusing cup is made of what?

‘molybdenum” because it has a high melting point and is a poor conductor of heat.

Pyrex glass

The glass enclosure is made of