Skip to main content

X-ray Generators

The X-ray Generators delivers the electrical power to energize the x-ray tube and permit the section of x-ray energy, X-ray quality, and exposure time and dissipation rates specific to a generator and x-ray tube target housing.


An x-ray generator is a device that helps to produce x-ray, together with an  x-ray detector, it is commonly used in a variety of applications including Medicine, x-ray, electronic assembly inspection, and measurement of material thickness in a manufacturing operators.

Types Of X-ray Generators 
• Single Phase Generators 
• Three Phase Generators 
• High-frequency Generators 
• Constant Voltage Generators 

- Single Phase Generators: - (also known as single alternator) is an alternating current electric generator that produce a single, continuously alternating voltage.

- Three Phase Generators: - work by producing three separate waves of AC power that operate in a sequence ensuring that there is always a continuous flow of energy and that’s the power level never dips as it does with single phase generator. Because of this uninterrupted reliability, Three phase generator are much more powerful.

An AC Three Phase Generators is simply three AC single phase generators. These generators run sequentially with an offset of 120° between them taken two at a time. Thus, the generator produces three waves of AC voltage in one cycle facilitating the consistent supply of constant voltage.

Three Phase Generators: – uses a transformer to the voltage that is applied across the x-ray tube The generator also rectifies the waveform from Alternating Current AC to Direct Current DC.

- High-frequency Generators: - Fully rectify AC current and supply the tube with DC current (High frequency means measuring even up-to 100KHZ instead of standard supply frequency of 50KHZ) The present HF X-ray generators use the frequency inverter-rectifier technology, to produce near constant potential.

Constant Voltage Generators: - Achieve a DC high voltage with minimal ripple through the use of a closed loop linear voltage Controller (e.g. High voltage triodes) in series with the tube, High frame rates and voltage are achieved,
- Constant potential generator use a complex technology with high cost investment and operation, and consequently have lost popularity.

Reference

Comments

Post a Comment

Popular posts from this blog

FOREARM X-RAY

The basic projections are A.P and Lateral ➢ Antero posterior (A.P):- The patient is seated along side of the table, with the affected side nearest to the tabletop. The arm is abducted and the elbow joint is fully extended with the forearm resting on the table. Centering point: - Center to the middle of the cassette or to the mid shaft of the bone. ➢ Lateral: - From the antero posterior position, the elbow is flexed and the humerus is internally rotated to bring the medial aspects of the upper arm, elbow, forearm, wrist and hand in contact with the cassette. Centering point: - Center to the middle of the cassette or to the mid shaft of the bone. Essential image characteristics . The image should demonstrate the radius and ulna, soft tissue outline and part of the wrist and elbow joint. References: MIT. Abdussalam A. Madaki and Cowen A.R (2019) Tutorial on the image quality characteristics of radiographic screen film combinations and their measurement, (medical Devices Directorate Evalua...
Post a Comment
Read more

The Skull Anatomy

Learning Objectives For The Skull •  List and identify the bones of the brain case and face • Locate the major suture lines of the skull and name the bones associated with each. • Define sinuses and identify the location of each • Identify the bones and structures that form the nasal septum and nasal conchae, and locate of the hyoid bone •  Identifythe bony openings of the skull Anterior View of the Skull  Lateral View of Skull Bones of the Brain Case Parietal Bone Temporal Bone Frontal Bone Occipital Bone Sphenoid Bone Ethmoid Bone Sutures of the Skull Facial Bones of the Skull Maxillary Bone Palatine Bone Zygomatic Bone Nasal Bone Lacrimal Bone Inferior Nasal Conchae Vomer Bone Mandible Paranasal Sinuses Hyoid Bone The cranium (skull) is the skeletal structure of the head that supports the face and protects the brain. It is subdivided into the facial bones and the brain case, or cranial vault. The facial bones underlie the facial structures, form the nasal cavity, enclo...
Post a Comment
Read more

HAND X-RAY

The basic projections are P.A and Lateral , ➢ Postero anterior (Dorsi-palmar P.A):- The patient is seated along side the table, the forearm is placed pronated on the table with the palmar surface of the hand in contact with the cassette. With the fingers slightly separated and extended to ensure that they remain in contact to the cassette. Centering point: - Center to the head of the third metacarpopalangeal joint. ➢ Dorsi-palmar oblique: - From the PA position the patient will now rotate his/her hand approximately 45° degrees, ➢ Another modified 15° degrees, Centering point: - Center to the 4th metacarpal bone. Essential image characteristics, The image should demonstrate the bones clearly and soft tissue outline no rotation or motion. References: MIT. Abdussalam A. Madaki and Cowen A.R (2019) Tutorial on the image quality characteristics of radiographic screen film combinations and their measurement, (medical Devices Directorate Evaluation report), MDD/94/34,ALTH.  
Post a Comment
Read more