e_book_PDF diagnositic X ray system and X ray components.pdffateh11
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Description
Dongmun's another innovation, Portable,
X-Ray Units is Digital Technology High Frequency inverter
type to provide the high efficiency in x-ray equipments,
designed for uses in large hospitals, clinics, private
practices, dental clinics. bed-side diagnosis and
emergencies, veterinary.
Features
● Compact and light weight design.
● Digital LED display , reversible.
● 6 selection presetting anatomical memory mode.
● Line voltage compensation.
● Remote control hand switch. for exposure.
● halogen lamp collimator.
● Scale tape for SID measurement & laser pointer.
The aim of the study was to investigate the relationship between 2D gray scale pixels and 3D gray scale pixels of image reconstructions in computed tomography (CT). The 3D space image reconstruction from data projection was a challenging and difficult research problem. The image was normally reconstructed from the 2D data from CT data projection. In this descriptive study, a synthetics 3D Shepp-Logan phantom was used to simulate the actual data projection from a CT scanner. Real-time data projection of a human abdomen was also included in this study. Additionally, the Graphical User Interface (GUI) for the application was designed using Matlab Graphical User Interface Development Environment (GUIDE). The application was able to reconstruct 2D and 3D images in their respective spaces successfully.The image reconstruction for CT in 3D space was analyzedalong with 2D space in order to show their relationships and shared properties for the purpose of constructing these images.
This document discusses radiation protection for patients and operators during dental x-ray procedures. It covers key concepts like total filtration, collimation, protective equipment like lead aprons and thyroid collars, proper techniques to minimize exposure, and guidelines for radiation safety. The document emphasizes that while dental x-rays provide benefits, it is important to use all available methods to minimize the amount of radiation received by patients and operators, in accordance with legislation and the ALARA principle of keeping exposures as low as reasonably achievable.
This document discusses micro mirror display technology, specifically digital micromirror devices (DMD). It provides an introduction to DMDs, describing their operation using arrays of tiny micromirrors that can rotate to on and off positions. The document outlines the performance history and comparisons of DMDs, noting improvements over time. It lists several applications of DMD technology, such as digital light processing, 3D displays, and lithography.
Salim Abudayeh is a 31-year-old radiographer from Jordan with 8 years of experience performing X-rays, CT scans, and other radiology procedures. He is looking for a new position where he can utilize his skills and experience. He has a Bachelor's degree in Radiologic Technology and licenses in general radiography and diagnostic radiology. Currently he works as an X-ray and CT radiographer at King Abdullah University Hospital, where he has been for over 10 years performing various radiology exams and ensuring patient safety.
The document discusses the components and workings of an X-ray machine. It is comprised of a high voltage generator, X-ray tube, autotransformer, high voltage transformer, rectifier, tungsten filament, and operating console. X-rays are produced when high-speed electrons emitted from a filament collide with a metallic target in the X-ray tube. The electrons are accelerated using kilovolts peak (kVp) and milliamps (mA) which causes the electrons to lose kinetic energy upon impact, transforming it into X-ray radiation. Main components include the X-ray tube which houses the filament and target, as well as circuits to heat the filament and accelerate the electrons.
Radiation Protection and Safety of Radiation Sources: International Basic Saf...Omar Alonso Suarez Oquendo
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Protección Radiológica y Seguridad de Fuentes de radiación: Estandares Internacionales Básicos de Seguridad.
Publicación del OIEA, desde:
http://www-pub.iaea.org/MTCD/Publications/PDF/Pub1578_web-57265295.pdf
Test Plan Development using Physics of Failure: The DfR Solutions ApproachCheryl Tulkoff
?
This document discusses using physics of failure (PoF) methodology to develop optimized test plans that are tailored to a product's specific design, materials, use environment, and reliability needs. It provides an overview of key aspects of test plan development including defining reliability goals and the use environment, identifying failure inducing loads, developing a comprehensive test plan, and ensuring change control processes and ongoing reliability testing are in place. The document also presents a case study of how PoF modeling was used to develop a test plan for microinverters intended for a 25-year lifespan in harsh outdoor solar installations.
The document discusses the history and components of X-ray machines. It begins with a brief history of the discovery of X-rays by Wilhelm Roentgen in 1895 and important developments in dental radiology. It then describes the ideal requirements and main components of an X-ray tubehead, including the X-ray tube, position indicating device, and collimator. The document explains the circuitry and components within the X-ray tube, such as the cathode, anode, and line focus principle. It concludes with a discussion of advances in X-ray machines.
This document outlines the topics to be covered in a course on microelectromechanical systems (MEMS). It includes 5 units: introduction to MEMS processes and devices; MUMPs multi-user MEMS processes; thermal transducers; wireless MEMS; and future applications of MEMS. Some key MEMS fabrication techniques discussed are bulk micromachining, surface micromachining, and lithography. Examples of common MEMS devices mentioned are accelerometers, inkjet print heads, and micromirrors.
The document discusses guidelines for planning and establishing a diagnostic radiology facility from a radiation safety perspective. It outlines key factors to consider such as proper equipment choice, installation design, and role of qualified staff. For installation design, it recommends locating the facility away from high traffic areas and providing an appropriately sized room, structural shielding, and controlled access points. It also specifies minimum room sizes, wall thicknesses for shielding based on equipment power, and requirements for a control room, dark room, doors, and warning systems. The overall aim is to reduce radiation exposure to workers, public and patients to as low as reasonably achievable.
Ion implantation is a technique for doping semiconductors by accelerating ions to high energies and bombarding a wafer with them. During implantation, the wafer is kept at ambient temperature to prevent diffusion. However, a post-implant annealing step above 900°C is required to repair damage to the wafer's crystal structure caused by nuclear collisions with ions. Ion implantation offers more control over dopant dose and depth profile than diffusion and allows for precise doping of semiconductors.
Optical lenses are used in microscopes to form magnified images of microscopic objects. A lens has curved surfaces that focus light rays to form these images. Single lenses are used in eyeglasses and cameras, while compound lenses with multiple elements are used in microscopes and telescopes to correct optical aberrations. A metallurgical microscope uses reflected light to illuminate and image opaque metal samples, allowing metallurgists to examine microstructural details at magnifications from 1 to 1500x. Objectives resolve microstructural details while eyepieces further magnify the image without additional resolution.
The document summarizes the history of integrated circuit fabrication technology from the 1940s to 2000s. Some key events include:
- The invention of the transistor at Bell Labs in 1947 laid the foundation for integrated circuits.
- Jack Kilby at Texas Instruments built the first integrated circuit in 1958 combining resistors, capacitors and transistors on a silicon chip.
- In 1959, planar technology was developed allowing more complex circuits to be built on chips using insulating and conducting layers.
- The microprocessor was invented in 1971 combining processor and memory on a single chip, enabling the computer revolution. Feature sizes continued to shrink following Moore's Law, increasing transistor counts and capabilities of chips over the decades.
Quality Management for Diagnostic Imagingwnabxrayd
?
This document discusses quality management and quality control programs for radiographic and fluoroscopic inspections. It describes quality management as encompassing quality assurance and quality improvement to evaluate care using various methodologies. Quality assurance plans and monitors problems to ensure technical requirements are met. Quality control refers to operational techniques used to maintain quality standards throughout the process, from inputs to outputs. The document outlines elements of a typical quality control program, including visual inspections, accuracy testing of kVp, mA, and timers, focal spot testing, and more. It emphasizes the importance of monitoring images and systems to reduce downtime, repeats, dose, and costs while increasing confidence and morale.
MRI uses strong magnetic fields and radio waves to generate images of the inside of the body. Protons in the body align with the magnetic field, and radio waves can excite the protons to change their alignment. The protons then emit radio signals as they relax back to equilibrium, and these signals are used to form an image. Different tissues have varying relaxation times for protons to return to alignment after excitation, allowing contrast between types of soft tissues to be seen in MRI scans. Safety precautions are needed around MRI machines due to the strong magnetic fields.
The document discusses several types of modern metallic materials including dual phase steels, microalloyed steels, high strength low alloy (HSLA) steels, and steel transformation induced plasticity (TRIP) steels. Dual phase steels have high strength from martensite islands in a soft ferrite matrix. Microalloyed steels contain small amounts of alloying elements and have strengths between carbon steel and low alloy steel. HSLA steels have strengths greater than 275 MPa through microalloy additions. TRIP steels undergo a stress-induced phase transformation from austenite to martensite, increasing strength through strain hardening.
This document summarizes the process of image formation in radiology using radiation. It begins by explaining that medical imaging extracts anatomical and physiological information from patients to aid in diagnosis and treatment. It then describes the three stages of image formation: 1) formation of invisible images using radiation, 2) conversion of invisible images to visible light images and recording them, and 3) producing images in a permanent form. Finally, it discusses how radiographic images appear as varying shades of gray depending on how much radiation is absorbed by different tissues.
The document summarizes the presentation given by Vamsi Krishna Rentala on stress fields around dislocations. It first defines dislocations and the three main types: edge, screw, and mixed. It then describes how stress fields are produced by dislocations using linear elasticity theory. Simple models are used to illustrate the stress fields around screw and edge dislocations. Key results presented include the diverging stresses near dislocations and variations in stress type (tensile vs. compressive) above and below the slip plane for an edge dislocation. The document concludes by noting mixed dislocations contain both edge and screw components and summarizing some properties of stress fields.
01.07.09(a): Introduction to Radiation Oncology, Pre-ClinicalOpen.Michigan
?
狠狠撸show is from the University of Michigan Medical
School's M2 Hematology / Oncology sequence
View additional course materials on Open.Michigan: openmi.ch/med-M2Hematology
Basic information about Elekta and its familiar with xvi and Iviewgt protocols and there import and defining the Target area clip box registration along with HEXAPOD 6Dof couch & Apex Dmlc setup
The document discusses radiotherapy techniques for tumors of the eye and orbit. It covers three main techniques: plaque brachytherapy using radioactive isotopes, external beam radiotherapy, and proton beam radiotherapy. Plaque brachytherapy involves suturing radioactive discs directly on the eyeball for localized tumors. External beam radiotherapy uses photon beams from a linear accelerator to treat larger or multifocal tumors. Proton beam radiotherapy offers dose conformity for tumors near the optic nerve. Key indications and complications of each technique are described for various intraocular and orbital tumors, including retinoblastoma, uveal melanoma, and metastatic lesions.
An x-ray machine uses x-rays to generate images of structures inside the body. It is a complex device used for purposes like airport security screening and medical imaging. Maintenance of x-ray machines includes repairs, preventative maintenance, and scheduled inspections to increase availability and reliability. Troubleshooting involves testing different components like transformers, cables, and tubes to diagnose issues like failed power supply or exposure problems.
DICOM is a standard for digital imaging and communications in medicine. It was developed by NEMA and ACR to enable sharing of medical images and associated data between devices. DICOM defines formats for images, communication protocols, and a data model for medical imaging applications. It allows for storage, printing, distribution, and analysis of medical images through different systems.
Test Plan Development using Physics of Failure: The DfR Solutions ApproachCheryl Tulkoff
?
This document discusses using physics of failure (PoF) methodology to develop optimized test plans that are tailored to a product's specific design, materials, use environment, and reliability needs. It provides an overview of key aspects of test plan development including defining reliability goals and the use environment, identifying failure inducing loads, developing a comprehensive test plan, and ensuring change control processes and ongoing reliability testing are in place. The document also presents a case study of how PoF modeling was used to develop a test plan for microinverters intended for a 25-year lifespan in harsh outdoor solar installations.
The document discusses the history and components of X-ray machines. It begins with a brief history of the discovery of X-rays by Wilhelm Roentgen in 1895 and important developments in dental radiology. It then describes the ideal requirements and main components of an X-ray tubehead, including the X-ray tube, position indicating device, and collimator. The document explains the circuitry and components within the X-ray tube, such as the cathode, anode, and line focus principle. It concludes with a discussion of advances in X-ray machines.
This document outlines the topics to be covered in a course on microelectromechanical systems (MEMS). It includes 5 units: introduction to MEMS processes and devices; MUMPs multi-user MEMS processes; thermal transducers; wireless MEMS; and future applications of MEMS. Some key MEMS fabrication techniques discussed are bulk micromachining, surface micromachining, and lithography. Examples of common MEMS devices mentioned are accelerometers, inkjet print heads, and micromirrors.
The document discusses guidelines for planning and establishing a diagnostic radiology facility from a radiation safety perspective. It outlines key factors to consider such as proper equipment choice, installation design, and role of qualified staff. For installation design, it recommends locating the facility away from high traffic areas and providing an appropriately sized room, structural shielding, and controlled access points. It also specifies minimum room sizes, wall thicknesses for shielding based on equipment power, and requirements for a control room, dark room, doors, and warning systems. The overall aim is to reduce radiation exposure to workers, public and patients to as low as reasonably achievable.
Ion implantation is a technique for doping semiconductors by accelerating ions to high energies and bombarding a wafer with them. During implantation, the wafer is kept at ambient temperature to prevent diffusion. However, a post-implant annealing step above 900°C is required to repair damage to the wafer's crystal structure caused by nuclear collisions with ions. Ion implantation offers more control over dopant dose and depth profile than diffusion and allows for precise doping of semiconductors.
Optical lenses are used in microscopes to form magnified images of microscopic objects. A lens has curved surfaces that focus light rays to form these images. Single lenses are used in eyeglasses and cameras, while compound lenses with multiple elements are used in microscopes and telescopes to correct optical aberrations. A metallurgical microscope uses reflected light to illuminate and image opaque metal samples, allowing metallurgists to examine microstructural details at magnifications from 1 to 1500x. Objectives resolve microstructural details while eyepieces further magnify the image without additional resolution.
The document summarizes the history of integrated circuit fabrication technology from the 1940s to 2000s. Some key events include:
- The invention of the transistor at Bell Labs in 1947 laid the foundation for integrated circuits.
- Jack Kilby at Texas Instruments built the first integrated circuit in 1958 combining resistors, capacitors and transistors on a silicon chip.
- In 1959, planar technology was developed allowing more complex circuits to be built on chips using insulating and conducting layers.
- The microprocessor was invented in 1971 combining processor and memory on a single chip, enabling the computer revolution. Feature sizes continued to shrink following Moore's Law, increasing transistor counts and capabilities of chips over the decades.
Quality Management for Diagnostic Imagingwnabxrayd
?
This document discusses quality management and quality control programs for radiographic and fluoroscopic inspections. It describes quality management as encompassing quality assurance and quality improvement to evaluate care using various methodologies. Quality assurance plans and monitors problems to ensure technical requirements are met. Quality control refers to operational techniques used to maintain quality standards throughout the process, from inputs to outputs. The document outlines elements of a typical quality control program, including visual inspections, accuracy testing of kVp, mA, and timers, focal spot testing, and more. It emphasizes the importance of monitoring images and systems to reduce downtime, repeats, dose, and costs while increasing confidence and morale.
MRI uses strong magnetic fields and radio waves to generate images of the inside of the body. Protons in the body align with the magnetic field, and radio waves can excite the protons to change their alignment. The protons then emit radio signals as they relax back to equilibrium, and these signals are used to form an image. Different tissues have varying relaxation times for protons to return to alignment after excitation, allowing contrast between types of soft tissues to be seen in MRI scans. Safety precautions are needed around MRI machines due to the strong magnetic fields.
The document discusses several types of modern metallic materials including dual phase steels, microalloyed steels, high strength low alloy (HSLA) steels, and steel transformation induced plasticity (TRIP) steels. Dual phase steels have high strength from martensite islands in a soft ferrite matrix. Microalloyed steels contain small amounts of alloying elements and have strengths between carbon steel and low alloy steel. HSLA steels have strengths greater than 275 MPa through microalloy additions. TRIP steels undergo a stress-induced phase transformation from austenite to martensite, increasing strength through strain hardening.
This document summarizes the process of image formation in radiology using radiation. It begins by explaining that medical imaging extracts anatomical and physiological information from patients to aid in diagnosis and treatment. It then describes the three stages of image formation: 1) formation of invisible images using radiation, 2) conversion of invisible images to visible light images and recording them, and 3) producing images in a permanent form. Finally, it discusses how radiographic images appear as varying shades of gray depending on how much radiation is absorbed by different tissues.
The document summarizes the presentation given by Vamsi Krishna Rentala on stress fields around dislocations. It first defines dislocations and the three main types: edge, screw, and mixed. It then describes how stress fields are produced by dislocations using linear elasticity theory. Simple models are used to illustrate the stress fields around screw and edge dislocations. Key results presented include the diverging stresses near dislocations and variations in stress type (tensile vs. compressive) above and below the slip plane for an edge dislocation. The document concludes by noting mixed dislocations contain both edge and screw components and summarizing some properties of stress fields.
01.07.09(a): Introduction to Radiation Oncology, Pre-ClinicalOpen.Michigan
?
狠狠撸show is from the University of Michigan Medical
School's M2 Hematology / Oncology sequence
View additional course materials on Open.Michigan: openmi.ch/med-M2Hematology
Basic information about Elekta and its familiar with xvi and Iviewgt protocols and there import and defining the Target area clip box registration along with HEXAPOD 6Dof couch & Apex Dmlc setup
The document discusses radiotherapy techniques for tumors of the eye and orbit. It covers three main techniques: plaque brachytherapy using radioactive isotopes, external beam radiotherapy, and proton beam radiotherapy. Plaque brachytherapy involves suturing radioactive discs directly on the eyeball for localized tumors. External beam radiotherapy uses photon beams from a linear accelerator to treat larger or multifocal tumors. Proton beam radiotherapy offers dose conformity for tumors near the optic nerve. Key indications and complications of each technique are described for various intraocular and orbital tumors, including retinoblastoma, uveal melanoma, and metastatic lesions.
An x-ray machine uses x-rays to generate images of structures inside the body. It is a complex device used for purposes like airport security screening and medical imaging. Maintenance of x-ray machines includes repairs, preventative maintenance, and scheduled inspections to increase availability and reliability. Troubleshooting involves testing different components like transformers, cables, and tubes to diagnose issues like failed power supply or exposure problems.
DICOM is a standard for digital imaging and communications in medicine. It was developed by NEMA and ACR to enable sharing of medical images and associated data between devices. DICOM defines formats for images, communication protocols, and a data model for medical imaging applications. It allows for storage, printing, distribution, and analysis of medical images through different systems.