Engr Khaleeque AhmedSir syed university of engineering

& technology Karachi

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Five• X-ray tube housing

Six• Collimator

Seven• Grid

Eight• Patient Table

Nine• Bucky

Ten• Radiographic film

X-RAY TUBEThis 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

CONSOL

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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 VOLTAGEGENERATOR

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.

CollimatorsBeam 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 MATERIALITS INSERTED B/W PATIENT AND THE FILM

PURPOSEREDUCE THE SCATTERED RADIATIONIMPROVE 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…………!!!!!