Engr Khaleeque Ahmed

Sir syed university of engineering &

technology Karachi

One• X-ray tube

Two• Operating Console

Three• High voltage generator

Four• Tube head

Five

• X-ray tube housing

Six

• Collimator

Seven

• Grid

Eight

• Patient Table

Nine

• Bucky

Ten

• Radiographic film

This is a modern rotating anode x-ray tube. It is encased

completely in a metal protective housing.

There are two principle parts:

•The rotating anode(acts as the target for electrons and

releases x-rays)

•The cathode(provides a source of electrons)

Purpose:

– Controls leakage & off-focus radiation

– Isolates high voltages

– Helps to cool the tube

OPERATING CONSOLE

THE CONSOLE IS THE PART OF MACHINE THAT

CONTROLS THE OPERATION OF X-RAY MACHINE

ALL MACHINE CONSOLE ARE LITTLE DIFFERENT BUT

THERE ARE ALWAYS SIMILARITIES.

THE CONSOLE IS WHERE WE CONTROL THE X-RAY TUBE

CURRENT,VOLTAGES LINE COMPENSATION.

HIGH VOLTAGE

GENERATOR

A single phase HV generator can take the power

supplied by AC mains rectify it & transform

Rectification process is either in half wave or full

wave to remove any negative going voltages, which

would otherwise excite an anode to act as electron

source.

TUBE HEAD

The external structure of x-ray tube consists of

3 parts

1.The support system

2.the protective housing

3.glass or metal enclosure

PROTECTIVE HOUSING

The x-ray photons are

generated isotropic

ally or in all directions.

The housing is

designed to limit the

beam to window.

PROTECTIVE HOUSING – PREVENT

DAMAGE

The housing also provide mechanical support

and protection from damage.

On some tubes, the housing also contains oil

that provides more insulation and a thermal

cushion.

Collimators

Beam restricting device.

it’s considered the best beam restricting

device.

remove unwanted radiations.

A collimator has two or three sets of lead shutters.

Located immediately below the tube window, the

entrance shutters limit the x-ray beam.

One or more sets of adjustable lead shutters are

located 3 to 7 inches (8 − 18 cm) below the tube.

GRID

IT’S MADE UP OF LEAD MATERIAL

ITS INSERTED B/W PATIENT AND THE FILM

PURPOSE

REDUCE THE SCATTERED RADIATION

IMPROVE IMAGE CONTRAST.

X-RAY TABLES OR PATIENT

TABLES

CHARACTERISTICS

•RADIOLUCENT MATERIAL

•EASILY CLEANED

•SCRATCH RESISTANT

•BUCKY TRAY

•BUCKY SLOT COVER

•GRID

A BUCKY IS TYPICALLY USED FOR TABLE

OR WALL MOUNTED X-RAY SYSTEMS AND

HOLDS THE X-RAY CASSETTE AND GRID. A

BUCKY IS A DEVICE FOUND UNDERNEATH

THE EXAM TABLE, A DRAWER LIKE DEVICE

THAT THE CASSETTE AND GRID IS SLID

INTO BEFORE SHOOTING X-RAY.

BUCKY

THANK U…………!!!!!