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Radiation Basics
Radiography for Veterinary Technicians
| Question | Answer |
|---|---|
| What holds the cassette, below the X-ray table? | Bucky Tray |
| Which anode is more prone to damage? Why? | Stationary anode; too much heat is being produced in small areas |
| What format are digital images stored in? | DICOM |
| Which anode allows for greater dissipation of heat? | Rotating anode |
| Which end of the X-ray tube are electrons generated? | Cathode |
| Which end of the X-ray tube receives the electrons? | Anode |
| During the x-ray production process, what % of energy is released as x-rays? | 1% |
| What helps transmit the electrons directly to the anode? | Focusing cup |
| What device restricts the size of the X-ray beam and reduces the amount of scatter radiation? | Collimating device |
| What is the purpose of a collimating device? | it restricts the size of the x-ray beam and reduces the amount of scatter radiation |
| What are the components of an X-ray machine? | X-ray tube head, control center, tabletop, Bucky tray, transformer, and generator |
| What are the components of an X-ray tube head? | Anode, cathode, glass enclosure, and window |
| How is the electromagnetic spectrum measured? | energy, frequency, and wavelength |
| Why is the X-ray tube enclosed in glass? | so a vacuum can be created |
| Why are short wavelengths better than long wavelengths in x-ray production? | the amount of power allows for better penetrations through mass |
| What are the different forms of energy? | electrical, chemical, mechanical, thermal, nuclear, and electromagnetic |
| What term describes the number of waveforms that strike an object during a given time period? | Frequency |
| What does wavelength pertain to? | the size of the wave from crest to crest |
| What are the two types of transformers? | Step-up transformer and filament transformer |
| How many volts do most transformer units run on? | 220 volts |
| What part of the x-ray machine is used to supply electrical current to the machine? | Rectifier |
| What information is required to be stored with film radiographs? | patients name, clients name, date , and body parts/views taken |
| What information is kept in a radiology log? | Clients name, patients name, date, body part, position, kVp and mAs settings, initials/signature of technician |
| How are x-rays produced? | X-rays are produced via rupture of intensely-heated, rapidly-moving, negative electrons. Positive electrons are guided down towards the patient, where they come into contact with film, which is surrounded by light-emitting material |
| What is the relationship between energy, frequency, and wavelength? | The energy of a wave is directly correlated to its frequency and inversely correlated to its wavelength. The greater the energy, the larger the frequency and smaller the wavelength |
| Describe some of the property of x-rays. | 1. Travel in straight lines 2. ionizes matter 3. Produces secondary & scatter radiation 4. Produces a variety of wavelengths & energies |
Created by:
BrianaPenn
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