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

Popular posts from this blog

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...

Introduction to ECG

MEANING OF ECG An electrocardiogram is a picture of the electrical conduction of the heart. By examining changes from normal on the ECG, clinicians can identify a multitude of cardiac disease processes. There are two ways to learn ECG interpretation — pattern recognition (the most common) and understanding the exact electrical vectors recorded by an ECG as they relate to cardiac electrophysiology — and most people learn a combination of both. This tutorial pairs the approaches, as basing ECG interpretation on pattern recognition alone is often not sufficient. Parts of an ECG The standard ECG has 12 leads. Six of the leads are considered “limb leads” because they are placed on the arms and/or legs of the individual. The other six leads are considered “precordial leads” because they are placed on the torso (precordium). The six limb leads are called lead I, II, III, aVL, aVR and aVF. The letter “a” stands for “augmented,” as these leads are calculated as a combination of leads I, II and ...

WRIST X-RAY

The basic projections are P.A and Lateral  ➢ Postero anterior (P.A):- The patient is seated along side the table with the affected side in contact with the cassette. Flexed the elbow joint and the arm is abducted, so that the anterior aspects of the forearm and the palm of the hand should be in contact with the cassette. The fingers are slightly separated to bring the anterior aspects of the wrist in contact to the cassette. Centering point: - Center mid way between the median and lateral styloid process.  ➢ Lateral: - from the postero anterior the wrist is rotated externally to bring palm of the hand vertically, the hand is rotated externally slightly further to ensure that the radial and styloid process are superimposed. Centering point: - Center to the lateral styloid process. Radiological consideration, The radiograph should demonstrate the all of the carpal bones clear and part of the metacarpal and forearm. References: MIT. Abdussalam A. Madaki and Cowen A.R (2019) Tutor...