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Manpreet's Stack
week 4 Imaging equipment and advanced modality
| Question | Answer |
|---|---|
| High Voltage generator contains: | High Voltage Transformer, Timer and rectifiers |
| what is Autotransformer | The first component to receive power in the x-ray circuit is the autotransformer. |
| The Three main part of the X-ray imaging system is : | X-ray tube, Operating console and high Voltage generator |
| What is Amplitude ? | The difference in the waveform between the primary and secondary sides of the high voltage transformer is Amplitude. |
| What happens when Xray tube aging? | The inside can become coated with tungsten, which can cause arching in the tube. |
| what is filament made of? | The filament is made of tungsten. |
| Principal characteristics of any medical image? | Contrast resolution, noise, artifacts, and spatial resolution are the principal characteristics of any medical image. |
| Photostimulation ? | The emission of visible light after excitation by laser light is known as photostimulation. |
| what is source of image noise in computed radiography? | Scatter of stimulating beam, inadequate sampling, and fast or slow scan drivers are considered a source of image noise in computed radiography. |
| what is Bit? | In computer language a single binary digit, 0 or 1, is called a bit. |
| what programming language was developed for coding business data? | COBOL |
| In order to maintain ________The laser beam must be less than ______? | Spatial resolution, 100 micrometer in diameter . |
| Can a digital imaging plate can sit for some time after the erase cycle? | NO |
| Digital radiography is best described by ____,_____ and ______ three elements? | Capture, coupling, and collection |
| what is one advantage of DR over scanned projection radiography ? | Shorter exposure time . |
| Digital radiography is best described by three elements _____, ______ and _______. | capture, coupling, and collection. |
| ____________ determined by the ratio of field of view to matrix size. | spatial resolution |
| ________________ an indirect DR process by which x-rays are converted first to light and then to an electronic signal? | Cesium iodide/charge coupled device (CsI/CCD) |
| Detective quantum efficiency (DQE) | ____________ is a measure of x-ray absorption efficiency. |
Created by:
Mann gill
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