XRAY IMAGING SYSTEM finals

Ceiling support system

which the tube assembly is

supported at the ceiling and can provide variety of

tube orientation

Wall to ceiling support system

tube assembly are

supported at the ceiling and wall mounted and can

provide specific tube orientation

C-Arm support system

provide most complex and provided wide orientation of tube during examination

X-ray tube

Operating Console

High Voltage Generator

three major components of xray

X-ray tube

known as the heart of the imaging system,

Operating Console

provide wide selection of the technical factors for exposure

High Voltage Generator

Provide supply of the voltage and current for the imaging system

X-ray tube

creating x-ray photons from electric energy supplied by the x-ray generator of high

voltage generator

diode tube

xray tube are also called as

internal

external

2 parts of xray tube

cathode

anode

2 parts of internal structure of xray tube

Target

is a flat panel that is

stationary or rotates during exposure and area known to produce x-ray

tungsten

molybdenum

rhodium

target is made up of 

Stator

extension of the target that holds the neck of the target which is made up of material

which is good heat conductor to avoid excessive heat in the target area.

Rotor

this is located at the back portion of the tube that is responsible in the rotation of the tube

via induction process made up of bearings to allow subsequent rotation during exposure.

target

stator

rotor

parts of anode

filament

focusing cup

parts of cathode

Filament

it is a coil of wires that is responsible in the production of the electron that is useful in the production of x-ray

tungsten

filament is made up of what

thorium

what material is usually added in the filament

Focusing cup

it is a material that is made up of metal, this is use to house the filament and focus

the electron produce in the filament directed to the target.

Glass envelop

it is made up of strong

glass that can withstand tremendous

heat ‘’ Pyrex glass”, continuously bath

with special oil to increase the

dissipation of heat.

insulating oil

the special oil in glass envelope

Metal enclosure

use to protect the tube

from rough handling and holds the

tube in the assembly.

metal and lead

what is Metal enclosure made up of

High Voltage Generator

use to supply the

imaging system with sufficient and great amount of current that

is useful in the production of x-ray

transformer

high voltage generator contains

Operating Console

Allows the radiologic technology to control the X-ray tube current and the voltage so that the useful x-ray

beam is proper quantity and quality

Operating Console

usually provides for control of line compensation, kVp, mA and

exposure time. Meters are provided for monitoring kVp, mA and exposure time.

LFAD

how do xrays produce

Liberation of electron

takes place when the current is supplied to the filament causing it to produce electron in

thermionic emission

the boiling out of electron liberation comes from the term liberate

which means to produce

focusing

where electron clouds are accumulated

accelerate

where electron from the cathode who are focus are accelerated

towards the target

Decelerate

this cause the production of x-ray into three process

Characteristics interaction, 2. Bremsstrahlung, and 3. Anode heat.

three most common interaction takes place inside the tube during the x-ray production

haracteristics x-ray

produce when the incident ray

interacts in the inner shell atom of target material causing vacancy of the inner shell causing the outer shell electron

to move from outer electron

cascading efffect

process when theres a vacancy of the inner shell causing the outer shell to move

Bremsstrahlung x-ray

produce when the incident ray directly attacking the nucleus of the atom but due to

string binding of the nucleus and string electric charge may cause the electron to bend and redirected outside the

atom and the energy cause the electron to slow down

Anode Heat

is made when the incident ray doesn’t cause any ionization and

interaction in the nucleus rather this is produce when the electron transfer its kinetic energy in the target atom in

the process of excitation.