Film Review
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| -happens with double emulsion film -front and back images are not perfectly superimposed, so image appears blury -not seen with thinner film construction | show 🗑
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| show | adhesive layer
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| show | emulsion layer
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| show | mammography
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| what is the emulsion # | show 🗑
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| show | -glass until WW1 -cellulose nitrate after WW1(flamable -cellulose tiacetate in 1920's(called safety film because it was non-flamable, but it tore easily) -beginnigng in the 1960's we started using polyester based film
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| provides mechanical support -inflamable -non-tear -flexible -stable/rigid -uniform lunicy -blue tint to reduce eye strain -archival quality | show 🗑
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| -photosensitive agents in film | show 🗑
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| show | silver halide crystals used in film today
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| what are the alternate crystal shapes | show 🗑
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| what is the silver halide crystal lattice | show 🗑
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| what are sensitivity specks made of | show 🗑
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| what are the clsifications of film | show 🗑
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| show | panchromatic film
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| -not sensitive to red light spectrum -uses red safelight -green sensitive | show 🗑
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| show | blue sensitive film
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| -hard protective gelatin -prevents soft emulsion from sctratches, etc. -antistatic -do not paper clip or staple processed images=scratch | show 🗑
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| show | dyes
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| show | -resolution -speed -contrast -latitude
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| show | resolution
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| show | -speed(aka sensitivity *more silver=higher speed *thicker emulsion layer gives more silver(speed), but less resolution
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| show | contrast *related to crystal size(smaller crystals=high contrast)
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| range of exposures to produce quality image(degree of error) | show 🗑
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| what kind of film would be used for chest and abdominal imaging | show 🗑
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| show | high resolution(requires more mas)
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| what is the purpose of film screens | show 🗑
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| show | direct exposure film
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| show | screen film
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| show | laser film
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| -used for copies of film images | show 🗑
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| -used to remove unwanted anatomy on images | show 🗑
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| show | cine film
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| -rolls of small film use to take blown up spot images | show 🗑
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| what is inportant for film handling | show 🗑
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| what is the film ID | show 🗑
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| show | -green film-unprocessed -clear film-processed -black film-exposed to white light before processing -diagnostic film-regular film with an image on it
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| show | -tube side-radiolucent -back side-radiopaque -blocker-pt info -purpose-light tight and good film/screen contact
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| show | at least 4ft from loading bench
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| what are the four main steps of the latent image formation Gurney-Mott hypothesis in film screen | show 🗑
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| what are the different types of static artifact | show 🗑
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| show | -light -heat -radiation -pressure
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| what is the main difference between direct exposure and screen film | show 🗑
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| how can you check for safe light fog | show 🗑
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Created by:
bigad1982
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