Term
| Chemicals that increase the pH of the developer and subsequently increase the rate of developing. |
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Definition
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Term
| Compounds that accelerate the fixing process and neutralize the alkaline developer. |
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Definition
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Term
| Compunds in the fixer that maintain proper solution pH. |
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Definition
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Term
| Also called fixing agents; a portion of the fixer that dissolves and removes the unexposed silver halide crystals from the film emulsion. |
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Definition
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Term
| A chemical solution that converts the latent image on a film to a visible image by converting the exposed silver halide crystals to black metallic silver. |
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Definition
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Term
| Chemical solution used to convert a latent image on x-ray film to visible image. |
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Definition
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Term
| The process by which the unexposed silver halide crystals are removed from the film and the gelatib is hardened. |
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Definition
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Term
| The chemical solution used during fixation |
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Definition
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Term
| Chemicals added to the fixing solution or to developers in automatic processors to prevent excessive emulsion swelling. |
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Definition
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Term
| Chemicals that prevent rapid decomposition of the developer or fixer. |
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Definition
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Term
| Often potassium bromide and potassium iodide are used as _______or antifoggants. _____ limit the action of the developing agent to the exposed silver bromide crystals in the film. |
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Definition
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Term
| A darkroom artifact produced by variable chemical temperatures that cause irregular expansion and contraction of the film emulsion, resulting in a mottled density appearance. |
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Definition
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Term
| A solution (usually water) used to remove excess developer solution before the film is placed in the fix tank. |
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Definition
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Term
| Water, dissolves the ingredients of the developer or fixer and diffuses the chemical into the emulsion of the film. |
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Definition
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Term
| A solution of acetic acid and water used to "stop" the development of the x-ray film by rapidly neutralizing the alkaline developer solution. |
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Definition
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Term
| A dark red safe light filter is ideal because: |
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Definition
| It protects both blue and green light sensitive film unlike brown safe light filters that only protect blue light sensitive film. |
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Term
| What colors should the walls be in a dark room so it provides reflection from the safe light? |
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Definition
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Term
| What is the range of wattage the safe light bulb should be? |
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Definition
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Term
| What information should be on the radiograph? |
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Definition
- Name of hospital/vet
- Date
- Patient name
- Owner's name
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Term
| How are lead digits used for id? |
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Definition
| Lead digits are placed in a holder or taped to cassette and are exposed to radiation. The lead absorbs the radiation from the x-ray beam so film under is left transparent. |
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Term
| What is the disadvantages of using lead digits? |
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Definition
- Time consuming
- Letters are eaily lost
- Limits tight collimation
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Term
| How can lead impregnanted tape be used to label a radiograph? |
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Definition
| The lead is displaced when written on leaving indentations and then is adhered to the cassette and exposed during the radiographic procedure leaving markings. |
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Term
| What equipment is needed for the photo-imprinting label system? |
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Definition
- Lead blocker 3x7cm
- Photo-imprinter machine
- Identification card
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Term
| What are the left and right markers used for? |
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Definition
| To identify right or left limbs or to identify left or right side of the thorax or abdomen. |
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Term
| Describe what is on the dry side of the dark room? |
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Definition
| This is where the film bin is located and the cassettes are loaded and unloaded. Dry channel and clip hangers are also located on this side so film can be attached before going to the wet side for processing. |
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Term
| Describe the ideal darkroom: |
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Definition
- 6x8 feet
- Clean
- Organized
- Lightproof
- Cool with low humidity
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Term
| Describe the wet side of the dark room? |
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Definition
| The three tanks are located in this area for film processing. Drying and viewing screens are also on this side of the room. |
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Term
| Automated processing procedures take about 90 seconds how long does manual processing take. |
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Definition
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Term
| After the film has been in the developer it will retain approximately how many milliliters of solution? |
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Definition
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Term
| Developing agents should be kept at what temperature? |
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Definition
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Term
| When is the wash tank used during manual developing? |
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Definition
| The wash tank is used after fixing for 20 to 30 minutes. |
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Term
| The radiograph is developed for 5 minutes and takes double the amount of time to fix(10 minutes). When can the film be briefly viewed during the fixing process. |
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Definition
After the film has been in fix for 1 minute.
(page. 82) |
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Term
| After developing has transpired for 5 minutes how long should a rinse bath been done for before placing the film in the fix tank. |
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Definition
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Term
| If a direct safe light is pointed directly at the work area an indirect safe light would be directed towards____. |
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Definition
The Ceiling
Remember: The distance of the safe light should be no closer than 4 feet from the working area. |
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