X-Ray Generator
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The document discusses the components and functioning of an x-ray generator. An x-ray generator uses a step-up transformer to increase the voltage supplied to the x-ray tube and a rectifier to convert the alternating current to direct current for powering the tube. Different types of generators are used including single phase, three phase with 6 or 12 pulses, and high frequency generators which further smooth the pulsating direct current.
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X ray generator
An x-ray generator uses a transformer assembly and control panel to supply electric power to the x-ray tube. The transformer assembly contains components like transformers, a rectifier, and capacitors that modify incoming alternating current into high voltage direct current needed by the x-ray tube. It increases the voltage using step-up transformers by factors of 600 or more. The control panel contains components that allow adjusting and monitoring of exposure parameters like kVp and mA, as well as buttons to initiate and terminate x-ray exposures. Modern x-ray generators use advanced rectification and switching circuits to provide stable, ripple-free power for short exposures like in angiography and fluoroscopy.
X ray generators and its type
This document discusses different types of generators and their components. It begins by defining a generator as a device that converts mechanical energy to electricity. It then discusses common electricity terms like current, voltage, and EMF. The document outlines different types of generators including X-ray generators. It explains the workings of 3-phase, 6-pulse, and 12-pulse generators. Advantages are provided such as reduced ripple factor and increased X-rays. Overall, the document provides an overview of generators, their components, different pulse types, and their applications.
"high tension generator", "high tension","tension generator", "generator", ...
1. The document discusses the components of an x-ray generator, including a high tension generator and rectification system. It describes how alternating current is generated and then rectified to produce direct current needed to power the x-ray tube.
2. Key components are the step-up transformer, which increases voltage, the rectifier circuit, which converts AC to DC, and the step-down transformer to provide lower voltage for the filament.
3. The document explains different transformer types like autotransformer and the principles of electromagnetic induction that transformers use to change voltage levels in the x-ray circuit.
X ray generators
X-ray generators use transformers, rectifiers, and capacitors to convert electrical power into high voltage pulses needed to generate x-rays. There are several types of x-ray generators including single phase generators that produce two pulses, three phase six pulse generators that use three phase power, and three phase twelve pulse generators that add an additional delta connection to produce twelve pulses. High frequency generators use high frequency current to provide a constant voltage to the x-ray tube. Power discharge generators include capacitor discharge generators that use a high voltage capacitor to store and discharge charge, and battery powered generators that use batteries as the power source.
X-RAY GENERATORS(1).pdf
This document provides information about x-ray generators. It discusses the key components of x-ray generators including transformers, rectifiers, and exposure timers. The transformers are used to increase or decrease voltage in the circuit. Rectifiers convert alternating current to direct current. Exposure timers control the length of x-ray exposures. The document also describes different types of x-ray generators such as three-phase generators, power storage generators, and automatic exposure control systems.
Rectifiers
Rectifiers play an important role in the x-ray circuit, this presentation gives a brief idea about rectifiers, generators and transformers.
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This document provides an overview of a seminar on Computed Radiography (CR) and Digital Radiography (DR). CR involves capturing x-ray data digitally using an imaging plate, which stores radiation exposure information that is later read out by a laser and processed into an image. DR directly converts x-rays to a digital signal using a detector connected to a computer. The seminar discusses the components, principles, workings, advantages and disadvantages of each technology. It describes how CR imaging plates use photostimulated luminescence and how digital images are produced during plate reading.
X rays generators and transformers
X-ray generators are used to power x-ray tubes in radiology. They contain transformers, diodes, and circuits to select energy, quantity, and exposure time. Generators can be single-phase, three-phase, constant potential, or high-frequency. Three-phase generators provide a continuous output to reduce exposure time and improve image quality. Constant potential generators produce a near-DC waveform for more efficient acceleration of electrons.
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X ray generator
An x-ray generator uses a transformer assembly and control panel to supply electric power to the x-ray tube. The transformer assembly contains components like transformers, a rectifier, and capacitors that modify incoming alternating current into high voltage direct current needed by the x-ray tube. It increases the voltage using step-up transformers by factors of 600 or more. The control panel contains components that allow adjusting and monitoring of exposure parameters like kVp and mA, as well as buttons to initiate and terminate x-ray exposures. Modern x-ray generators use advanced rectification and switching circuits to provide stable, ripple-free power for short exposures like in angiography and fluoroscopy.
X ray generators and its type
This document discusses different types of generators and their components. It begins by defining a generator as a device that converts mechanical energy to electricity. It then discusses common electricity terms like current, voltage, and EMF. The document outlines different types of generators including X-ray generators. It explains the workings of 3-phase, 6-pulse, and 12-pulse generators. Advantages are provided such as reduced ripple factor and increased X-rays. Overall, the document provides an overview of generators, their components, different pulse types, and their applications.
"high tension generator", "high tension","tension generator", "generator", ...
1. The document discusses the components of an x-ray generator, including a high tension generator and rectification system. It describes how alternating current is generated and then rectified to produce direct current needed to power the x-ray tube.
2. Key components are the step-up transformer, which increases voltage, the rectifier circuit, which converts AC to DC, and the step-down transformer to provide lower voltage for the filament.
3. The document explains different transformer types like autotransformer and the principles of electromagnetic induction that transformers use to change voltage levels in the x-ray circuit.
X ray generators
X-ray generators use transformers, rectifiers, and capacitors to convert electrical power into high voltage pulses needed to generate x-rays. There are several types of x-ray generators including single phase generators that produce two pulses, three phase six pulse generators that use three phase power, and three phase twelve pulse generators that add an additional delta connection to produce twelve pulses. High frequency generators use high frequency current to provide a constant voltage to the x-ray tube. Power discharge generators include capacitor discharge generators that use a high voltage capacitor to store and discharge charge, and battery powered generators that use batteries as the power source.
X-RAY GENERATORS(1).pdf
This document provides information about x-ray generators. It discusses the key components of x-ray generators including transformers, rectifiers, and exposure timers. The transformers are used to increase or decrease voltage in the circuit. Rectifiers convert alternating current to direct current. Exposure timers control the length of x-ray exposures. The document also describes different types of x-ray generators such as three-phase generators, power storage generators, and automatic exposure control systems.
Rectifiers
Rectifiers play an important role in the x-ray circuit, this presentation gives a brief idea about rectifiers, generators and transformers.
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This document provides an overview of a seminar on Computed Radiography (CR) and Digital Radiography (DR). CR involves capturing x-ray data digitally using an imaging plate, which stores radiation exposure information that is later read out by a laser and processed into an image. DR directly converts x-rays to a digital signal using a detector connected to a computer. The seminar discusses the components, principles, workings, advantages and disadvantages of each technology. It describes how CR imaging plates use photostimulated luminescence and how digital images are produced during plate reading.
X rays generators and transformers
X-ray generators are used to power x-ray tubes in radiology. They contain transformers, diodes, and circuits to select energy, quantity, and exposure time. Generators can be single-phase, three-phase, constant potential, or high-frequency. Three-phase generators provide a continuous output to reduce exposure time and improve image quality. Constant potential generators produce a near-DC waveform for more efficient acceleration of electrons.
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X-rays are produced when fast moving electrons are decelerated upon impact with the target anode of an x-ray tube. The x-ray tube contains a cathode that emits electrons and a stationary or rotating anode target. When electrons collide with the anode, x-rays are produced via two processes: characteristic radiation from electron shell interactions and continuous bremsstrahlung radiation from deflected electrons. Additional components such as filters and housing manage heat dissipation and focus the x-ray beam for medical imaging applications.
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An x-ray generator supplies electrical energy to the x-ray tube through two circuits - the filament circuit provides energy to heat the filament, and the high-voltage circuit uses transformers and rectifiers to accelerate electrons from the cathode to the anode. Modern generators use solid-state rectifiers and three-phase systems to produce a nearly constant high voltage for x-ray production. Three-phase generators have advantages over single-phase generators by producing x-rays more efficiently throughout exposures and decreasing exposure times.
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This document discusses key components of X-ray systems, including vacuum tube diodes that require rectification to convert AC to DC, high voltage transformers to achieve the voltages needed for X-ray production, and various generator designs like single phase, three phase, and constant potential generators. It also covers topics like transformer configurations and efficiencies, rectification circuits, and factors that determine the maximum safe output of X-ray tubes.
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X-ray generators supply electrical power to x-ray tubes. They modify electrical energy from a source to meet the needs of the tube. The generator has a timer to regulate exposure length. A basic x-ray machine circuit has a control console, high-voltage section, and x-ray tube. Autotransformers, step-up transformers, and step-down transformers are used to attain the proper voltages and currents for x-ray production and heating the filament. Rectifiers convert alternating current to direct current required by the x-ray tube. Three-phase generators are more efficient than single-phase generators as the voltage is nearly constant across the x-ray tube.
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Production of x rays & generators
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The document discusses x-ray machines and how they work. It explains that x-ray machines take electrical energy and convert it into two voltage streams: a low voltage that controls the filament current measured in mA, and a high voltage measured in kVp that produces x-rays. It states that increasing kVp produces x-rays with higher energy and shorter wavelength, while the mA controls the intensity of the x-ray beam by varying the current through the filament. The document also discusses how factors like kVp, mA, distance and filtration determine the quality and quantity of the resulting x-ray beam.
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Computed radiography uses imaging plates instead of film that store radiation exposure levels. The plates are scanned by a laser reader to digitize the image. Software then allows viewing and enhancing the digital image similarly to other digital images. While reusable, imaging plates can be expensive and prone to damage from manual handling between exposures.
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This document discusses quality assurance and quality control tests for diagnostic x-ray equipment. It defines quality assurance as maintaining high quality imaging through personnel training and evaluation, while quality control refers to evaluating radiographic equipment and identifying issues. Regular quality control tests check parameters like radiation and optical field alignment, focal spot size, tube voltage accuracy, exposure timer accuracy, total filtration, and radiation leakage. Performing these tests ensures optimal image quality, minimum radiation exposure, and cost effectiveness of diagnostic x-ray equipment.
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This document discusses key components of X-ray systems, including vacuum tube diodes that require rectification to convert AC to DC, high voltage transformers to achieve the voltages needed for X-ray production, and various generator designs like single phase, three phase, and constant potential generators. It also covers topics like transformer configurations and efficiencies, rectification circuits, and factors that determine the maximum safe output of X-ray tubes.
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ac circuit
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Transistor applications
Electrical current, voltage, resistance, capacitance, and inductance are a few of the basic elements of electronics and radio. Apart from current, voltage, resistance, capacitance, and inductance, there are many other interesting elements to electronic technology. ... Use Electronics Notes to learn electronics online.
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Electrical current, voltage, resistance, capacitance, and inductance are a few of the basic elements of electronics and radio. Apart from current, voltage, resistance, capacitance, and inductance, there are many other interesting elements to electronic technology. ... Use Electronics Notes to learn electronics online.
X ray generator new.ppt
The document discusses the basic components and operation of an x-ray circuit. The main circuit provides power to the x-ray tube to produce x-rays and includes a main switch, exposure switch, and timer. The filament circuit supplies power to the filament to produce electrons through thermionic emission and includes a step-down transformer. Common components are transformers to increase or decrease voltage, rectifiers to convert AC to DC, and a timer to regulate exposure duration. The number of phases in the power supply affects the ripple and efficiency of x-ray production.
GENERATORS
The document summarizes the key components and functions of an x-ray generator. It discusses how transformers are used to change voltage levels for the filament circuit and high voltage circuit. The filament circuit uses a step-down transformer to provide low voltage for heating the x-ray tube filament. The high voltage circuit uses an autotransformer and step-up transformer to provide high voltage of 40,000-150,000 volts for electron acceleration. Rectification is also discussed, which converts the alternating current output of the high voltage transformer to direct current required by the x-ray tube.
Topic 5 diode
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2. Under forward bias, current flows easily from the p-type to the n-type side. Under reverse bias, very little current flows.
3. Common diode applications include rectification circuits (half-wave, full-wave, and bridge rectifiers), which convert alternating current to direct current. Rectifiers use the one-way conduction of diodes to filter out the negative portions of the AC waveform.
autotransformers-170507172725 (1).pptx
The document discusses different types of transformers, including autotransformers. It explains that a transformer works by mutual induction between two coils to convert high alternating voltage to low or vice versa while keeping frequency the same. An autotransformer has only one winding with portions acting as both the primary and secondary sides, connected magnetically and electrically. Autotransformers can be either step up types with more secondary turns or step down types with more primary turns. They offer advantages over two-winding transformers like requiring less copper and being more efficient and compact.
Electronic devices circuits
The document discusses electronic devices and circuits, specifically focusing on PN diodes. It describes the theory of PN junctions, how a PN junction forms a diode, and the characteristics and properties of PN diode currents and voltages. It discusses topics like volt-amp characteristics, temperature effects, and switching times of PN diodes. It also provides explanations and circuit diagrams of half-wave and full-wave rectifiers, zener diodes, liquid crystal displays, and series voltage regulators.
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X-Ray Generator
- 1. BY DR NISHANT RAJ
- 2. • DEFINITON: An x-ray generator is the device that supplies electric power to the x-ray tube.
- 3. Why does x ray tube require electrical energy ?
- 8. TRANSFORMERASSEMBLY • A transformer is a device that either increases or decreases the voltage in a circuit .
- 12. AUTOTRANSFORMER
- 14. CIRCUIT
- 15. OUTPUT OFTRANSFORMER IS AC
- 16. RECTIFIER PN junction is used as rectifier where P and N are semiconductors.
- 17. P-N JUNCTION Formed when N-type and P-type crystals are joined.
- 18. FORWARDAND REVERSE BIAS •P-N diode conducts current in a forward direction only, hence it meets the definition of a rectifier.
- 21. TYPES OF GENERATORS • Single phase generator • Three phase generator: 2 types: 6 pulse and 12 pulse • High frequency generator
- 23. THREE PHASE GENERATORS • Commercial power generally delivered as 3 phase. • Phases 120 degrees apart
- 24. THREE PHASE GENERATORS • Rectifier circuit : Inverts negative voltage. • Sends highest of 3 phases to x-ray tube.
- 26. THREE PHASE 6 PULSE • Uses six rectifiers, and one half of the three phase AC pulses.
- 27. THREE PHASE 12 PULSE • More efficient than the six pulse but is more expensive .
- 28. HIGH FREQUENCY GENERATOR • First Step: Incoming AC converted to pulsed DC
- 29. HIGH FREQUENCY GENERATOR • Second Step: Pulsating DC smooth to constant voltage
- 31. RIPPLE FACTOR • The ripple factor is the variation in the voltage across the x-ray tube expressed as the percentage of maximum value.
Editor's Notes
- Autotransformer: allows selection of input voltage to step up and step down transformers Step-up transformer(filament transformer) Step-down transformer(high voltage transformer)
- PROBLEM- Output of Transformers is alternating current(AC)
- PROBLEM- Output of Transformers is alternating current(AC)