Term
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Definition
| A thin protective layer on both sides, emulsion containing silver halide crystals on both sides, polyester film base in between. |
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Term
| Greater film sensitivity = |
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Definition
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Term
| What is a film-latent image? |
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Definition
| Latent image consists of x-ray beam information recorded on film but still invisible to the naked eye. |
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Term
| The two basic types of film sensitivity. |
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Definition
| Blue and Green sensitive. |
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Term
| Blue and green sensitive film require what color safelight respectively? |
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Definition
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Term
| Non-screen film is most commonly used to radiograph what? |
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Definition
| Thinner objects (mandible, maxilla, dental). |
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Term
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Definition
| High speed (fast), average speed (par), slow speed (detail). |
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Term
| Increased film speed have what effect on radiographs? |
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Definition
| Grainy appearance and decreased detail. |
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Term
| Why is high speed film used with low output machines? |
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Definition
| mA and time choices are lower and slower in low output machines so faster speed film is used to make up the deficit. |
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Term
| What is the most commonly used film in veterinary rediography? |
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Definition
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Term
| What film speed will provide the highest degree of detail? |
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Definition
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Term
| What parts make up intensifying screen anatomy? |
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Definition
| Base, reflecting layer, phosphor layer, and the water protective coating. |
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Term
| What are the advantages of intensifying screens? |
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Definition
| Decreased exposure time, decreased patient and personnel exposure, increased tube life, increased flexibility in kVp setting, decreased focal spot size. |
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Term
| When going from a high to par speed screen, what must be done to mAs? |
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Definition
| mAs must be increased by 2x. |
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Term
| How should an intensifying screen be cleaned? |
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Definition
| Use cleaning solution especially for intensifying screens, solutions must contain antistatic agents and detergents, use lint-free cloth or 4x4 gauze square, follow with dry cloth to remove solution. |
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Term
| The quality of an x-ray beam is determined by: |
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Definition
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Term
| The quantity (or intensity) of an x-ray beam is defined as: |
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Definition
| amount of energy flowing per second. |
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Term
| The four exposure variables that control radiographic density, contrast, and detail. |
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Definition
| Milliamperage, exposure time, kilovolt peak, and focal film distance. |
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