StudentShare
Contact Us
Sign In / Sign Up for FREE
Search
Go to advanced search...
Free

X-ray Exposure Components - Essay Example

Comments (0) Cite this document
Summary
The X-ray equipment uses electromagnetic radiations to develop an object’s image, commonly with the intention of envisioning something situated beneath the surface of that object. The radiation emitting from the x-ray machine relies mainly upon kVp (tube voltage), mA (the…
Download full paperFile format: .doc, available for editing
GRAB THE BEST PAPER92.1% of users find it useful
X-ray Exposure Components
Read TextPreview

Extract of sample "X-ray Exposure Components"

X-Ray Exposure Components of X-Ray Exposure Components The X-ray equipment uses electromagnetic radiations to develop an object’s image, commonly with the intention of envisioning something situated beneath the surface of that object. The radiation emitting from the x-ray machine relies mainly upon kVp (tube voltage), mA (the x-ray tube current), s (exposure time) and cm (the distance between focus and detector). The dosage is defined by these parameters. So the major technical factors that affect an X-ray exposure are time, kVp, mA and distance. Each of them is briefly discussed below.
The variability in the electrons’ speed is given by kVp (kilovolt potential) which then determines the x-ray beam’s penetration, thus impacting the x-ray production’s efficiency, and determining the level of image contrast. The right kVp yields differential x-ray immersion of dense and soft anatomic structures. Increasing kVp results in an increase in the penetration of an x-ray beam. If kVp is set too low, the resultant image will be devoid of density leading to a sooty or a whitewashed appearance while in case of too high kVp, the resultant image will be too dark and over exposed. The kVp controls the electrons’ energy as they displace across the tube, or it may be said that kVp controls the electron’s speed. Therefore, the higher tube potential (kVp), the larger will be the affect of the electrons. Moreover, the greater the tube potential the greater will be the penetration. Thus, kVp monitors the beam quality by monitoring the x-ray beam energy (Gray et al., 1983).
The tube intensity and exposure time could be an unequalled exposure factor (mAs). The factor, “mAs” refers to the rate of electrons flow in a predetermined time. Where, mA refers to tube current while s denotes time in seconds. Thus the two exposure factors work in combination to control the quantity of electrons discharged at the cathode and afterward the quantity of x-rays developed at the anode. The milliampere seconds (mAs) ascertains the quantity of x-rays developed per unit time, while the quantity of x-rays arriving at the film ascertains the scale of film’s blackening. Both of these factors monitor and adjust the exposure factor’s quantitative character. These exposure factors determine and influence the quality and quantity of the x-ray beam (Hecker, & Garreau, 2012).
Another important factor is the distance between the focus and detector that impacts the x-ray exposure. This relationship is quite simple as the nearer the x-ray tube is placed to the film the higher will be the intensity of the exposure of radiation to the film. So by manipulating or changing, the film to x-ray tube distance, the blackening of a film can be effectively increased or decreased. So in order to have best exposure it is better to standardize this distance and the easiest way of doing this is with an x-ray machine that possesses tube placed on a stand fastened to a table as well as a film holder (Kumar, Kumar and Malleswararao, 2011).
References
Gray, J. E., Winkler, N. T., Stears, J. G. and Frank, E. D. (1983). Quality Control in Diagnostic Imaging. A Quality Control Cookbook. Rockville, MD: Aspen.
Hecker, J. and Garreau, J. (2012). Choosing the Appropriate X-Ray Exposure Factors. Black Hills Today. Retrieved from http://www.blackhillsportal.com/npps/story.cfm?id=3858
Kumar, G. A., Kumar, R.P. and Malleswararao, V. (2011). Evaluation on X-Ray Exposure Parameters Considering Tube Voltage and Exposure Time. International Journal of Engineering Science and Technology 3(4): 3210-3215. Read More
Cite this document
  • APA
  • MLA
  • CHICAGO
(“X-ray Exposure Components Essay Example | Topics and Well Written Essays - 500 words”, n.d.)
X-ray Exposure Components Essay Example | Topics and Well Written Essays - 500 words. Retrieved from https://studentshare.org/miscellaneous/1612906-x-ray-exposure-components
(X-Ray Exposure Components Essay Example | Topics and Well Written Essays - 500 Words)
X-Ray Exposure Components Essay Example | Topics and Well Written Essays - 500 Words. https://studentshare.org/miscellaneous/1612906-x-ray-exposure-components.
“X-Ray Exposure Components Essay Example | Topics and Well Written Essays - 500 Words”, n.d. https://studentshare.org/miscellaneous/1612906-x-ray-exposure-components.
  • Cited: 0 times
Comments (0)
Click to create a comment or rate a document

CHECK THESE SAMPLES OF X-ray Exposure Components

The second part X-ray Diffraction (XRD) Powder X-ray

...Task: The second part X-ray Diffraction (XRD) Powder X-ray Powder X-ray diffraction is among the primary methods, which are used by solid-state chemists and mineralogists to examine physic-chemical build-up of solids, which are unknown to them. The data is denoted in a group of single-phase X-ray powder diffraction forms of three strong D values in table form (Khan 24). The tables include mineral name, relative intensity (I/I) and interplanar spacing. The method takes a sample material and places a sample of powder in a holder. Illumination of the sample then follows with...
14 Pages(3500 words)Book Report/Review

X-Ray Powder Diffraction

...?X-Ray Powder Diffraction 503509) Introduction X-Ray powder diffraction is used widely in geological studies for the purpose of identifying the composition of minerals present in different rock formations. This provides a quicker method of identifying crystalline structures when compared to optical light microscopy or scanning electron microscopy. (Marta J.K Flour, 1997) Theory A non amorphous material consists of a three dimensional structure having atoms in a series of planes separated by a distance. When X-Rays are directed on to this structure, part of it is transmitted the specimen, some part is absorbed, a part is refracted and the...
4 Pages(1000 words)Essay

Instrumantation Koninklijke Phillips

...wear ring dosimeters during the X-ray imaging procedures. These dosimeters must be exchanged after every four months. As part of protection measures, there has to be a strong commitment that puts into consideration personnel and patient safety upon ionizing radiation exposure. This forms a critical component in control of public and occupational exposures. One aspect of this component is ensuring that no radiological diagnosis is performed unless the outcome to the patient is fully examined to warrant the exposure. During the X-ray imaging process, all persons must leave the irradiation...
8 Pages(2000 words)Essay

X-ray Fluorescence

...X-Ray Fluorescence Introduction X-rays were discovered by Wilhelm K. Rontgen (1845 – 1923), a German physicist (Shackley 7). These rays have a long history in commercial elemental analysis since the discovery of the correlation between a sample’s atomic weight and the X-rays radiating from it, a fact that enabled Henry G. J. Moseley number elements in 1913 through the observation of K-line transitions as observed in X-ray spectrum. This formed the basis of element identification through X-ray fluorescence spectroscopy by considering the relationship...
6 Pages(1500 words)Essay

X-ray Photons

...for reducing amount of scattered radiation. X-ray radiation is hazardous for radiologist and for patient. It can cause cataract and other radiation related disease and require appropriate radiation protection, e.g. shielding, decrease of exposure time, decrease of radiation intensity and increase of the distance between radiation source and exposed person (Bushberg et al., 1994). The choice of contrast medium should be based on the physical properties of the substance, particularly, on its half-value thickness. Thus for colon and bowel we can use barium contrast whereas for angiography we use iodine-containing contrast and for lungs - xenon. Routine screen-film radiography have limited...
8 Pages(2000 words)Essay

X-Ray Technician Workloads

...X-Ray Workloads Running Head: X-RAY TECHNICIAN WORKLOADS AND PATIENT SATISFACTION X-ray technician Workloads and Patient Satisfaction: Extending Research Endeavors into X-Ray Workplace Conditions. [Your Name] [Your University] Abstract The working conditions of x-ray technicians are extremely important to ensure efficient and effective patient processing. To date there is little empirical research investigating workplace practices of x-ray technicians or regular monitoring of x-ray center procedures. This study aimed to identify a relationship between x-ray center workload across five days and patient satisfaction. Patients were approached when appearing for their appointment at reception and 30 completed a survey... ...
11 Pages(2750 words)Research Paper

Lodox Statscanner X-Ray Unit

...LODOX STATSCANNER X-Ray Unit Affiliation: Table of Contents Executive Summary 4 Introduction 5 Product Overview 6 Product Technology 7 Product Benefits 8 Marketing Strategy 9 Marketing Plan 10 Management Summary 10 Economic Projections 10 The Qualitative Market 11 The Quantitative Market 11 Trend Analysis 11 Competition 11 Problems and Opportunities 12 SWOT Analysis 12 Strengths 12 Weaknesses 13 Opportunities 13 Threats 13 Appropriate Growth Strategy 13 The 4Ps 13 Product 13 Price 14 Place 14 Promotion 14 Operational Plan 15 Financial Plan 15 References 16 Executive Summary Lodox is a full-body, high-speed digital radiology device used in health care facilities and testing...
12 Pages(3000 words)Article

Physics (Electron Physics and X-ray Tomography)

...levels against a tungsten target. The graph is used to relate the intensity of x-rays emitted and the wavelength for accurate x-ray photographing. Question 2b The figure above shows X-ray spectrograph when copper is used as the target material, the intensity of the photon have linear relation with the wavelength. The intensity rises to peak then starts to slope downwards; high accelerating voltage causes the peak to rise sharply, as shown by Kp, Kα, LP and Lα. Question 3a X-ray tube functions as energy converting system that converts electric energy into x-ray...
7 Pages(1750 words)Coursework

X-ray crystallography

... X-ray Crystallography Studying the structures of crystalline structures was a challenge in the early days of science. Thediscovery of X-rays eased the struggle for determining the arrangement of cells that form crystals. This was with the coining of X-ray crystallography. X-ray crystallography is a scientific tool used to identify the structure of atoms and molecules. Crystallography is done by use of X-rays and the concept of diffraction of light or electromagnetic spectrum. Crystalline structures have an effect on a beam of incident X-rays and cause them to diffract into different directions. With this diffraction, it I easy to derive the three-dimensional outline or image projection of the density of electrons as profiled... in the...
4 Pages(1000 words)Research Paper

Portable X-ray fluorescence

...and quantification of an element present therein by simply counting the number of photons contained in energy from the given sample. Henry Moseley coined the technique, after being led by a discovery of X-ray tube that he applied in bombarding samples containing high energy electrons. Intuitively, Henry ended up with a mathematical relationship that could related the atomic number to the element’s emitted X-ray frequency. The years were followed by eventual development of the instrument leading to a modern XRF instrument that is reliable for analysis of solid, liquid, and thin-film samples for both major and trace components. How the instrument...
10 Pages(2500 words)Research Paper
sponsored ads
We use cookies to create the best experience for you. Keep on browsing if you are OK with that, or find out how to manage cookies.

Let us find you another Essay on topic X-ray Exposure Components for FREE!

Contact Us