SERIAL FILM CHANGER Flashcards
an electromechanical device that can expose
and transport film quickly
Rapid Serial Film Changer
The rapid serial film changer is used for which imaging technique?
Conventional Imaging technique
What are the different parts of the film changer?
Program selector
Supply Magazine
Transport Mechanism
Compression Table
Receiving cassette
Stand
Single Plane & Biplane Imaging
Dryview Laser Printer
This allows the operator to set speeds and
film quantity to suit the exam being
undertaken
Program selector
Programs can be designed to fit the standard requirements of various procedures.
Program Selector
What is the supply magazine?
Light-tight box that can be filled with film in
the darkroom and then attached to the film changer
How many films can the supply magazine store?
It can store a minimum of 12 unexposed films.
- consists of a series of the compression roller devices
- moves the film from the supply magazine to a pair of intensifying screens and then to the receiving cassette
Transport Mechanism
The compression table contains a _______ of what equipment?
Pair of intensifying screens
When the film is positioned between them,
they compress the film and the exposure is
automatically triggered. This process happens on what part?
Compression Table
What is the receiving cassette?
magazine that holds the exposed film
This part is returned empty to the changer
Receiving cassette
What are 2 categories of serial film changers?
- Cassette Serial Film Changers
- Cassetteless Serial Film Changers
What’s the difference between the:
1. Cassette Serial Film Changers
2. Cassetteless Serial Film Changers
Cassette - transports film in some form of the cassette holder
Cassetteless - may transport films individually (cut film changer) or from a supply film spool (roll film changer)
What is the most common type of serial film changer and who made it?
Vacuum changer made by Picker-Ampaltz
For the systems of the cassetteless serial film changers, both systems used what kind of intensifying screens?
Stationary intensifying screens
This type of cassetteless film changer operates on the same principle as a photographic camera.
Roll film changers
Roll-films are usually supplied in ______ lengths
50 ft
For the roll film changers, what area do they usually expose?
14” x 14” area allowing approximately 43
exposures per roll
In this changer, Film is threaded through the machine past the exposure area to another spool, which stores the exposed film
Roll-film changer
This type of changer uses single or cut sheets
of x-ray film for each exposure
Cut-film changers
What are the 2 types of supply magazines in a cut-film changer?
Interweaving and S-stack loading magazine
What is the difference between the interweaving and s-stack loading magazine
I - each film must be positioned
between 2 metals or plastic dividers
S - has no dividers
What are the 2 types of stand?
Mobile floor stand
C-arm mount
What is the mobile floor stand?
the changer is mounted on a frame with locking wheels
What is the c-arm mount?
Allows a variety of positions in which the changer may be placed
What are the 2 types of plane imaging?
Single plain and Biplane
Difference between single plane and biplane imaging
S - employs one film changer and one radiographic tube
B - uses two x-ray tubes in conjunction with two film changers
Advantage of using single-plane filming
Has an excellent film quality over the biplane film changer
In the ___________ plane filming, the X-ray tube and the film changer need to be repositioned for the second view, and two injections are required in AP and Lat projections.
Single-Plane Filming
Advantages of Dryview Laser Printer
- Outstanding diagnostic image quality
- Minimize noise and improved density uniformity in the emulsion.
- Easy film loading and handling
- No wet film processor is required
- Films can be loaded in full room light
- Film recognition technology, recognize film type, size, and lot as well as the number of sheets remaining.
