Ziehm Imaging, Inc. QUANTUM, Руководство пользователя, Страница: 122 / 220

Section 8.0
MAN 06–0017H
ZIEHM QUANTUM
User’s Manual Page 122 of 220
8.23 DIRECT RADIOGRAPHY OPTION
8.23.1. OVERVIEW:
The ZIEHM QUANTUM can also be used for making direct radiographic film exposures.
Direct radiographies are only possible if your system is equipped with a film cassette holder
(optional accessory).
8.23.2. FITTING THE FILM CASSETTE HOLDER
To fit the film cassette holder for direct radiographic exposures onto the image intensifier, do
the following:
•
Pull the spring-loaded securing lever on the film cassette holder outward.
•
Slide the film cassette holder over the supporting ridge on the image intensifier.
8.23.3. MANUAL SETTINGS
•
Release the spring-loaded securing lever.
•
The securing lever engages above the supporting ridge.
•
Insert film and cassette fully into the film cassette holder from the side.
Fig. 8.7: Fitting The Film Cassette Holder And Inserting The Film Cassette
Securing lever
Film cassette
Film cassette holder
Image Intensifier
8.24 MAKING A DIRECT RADIOGRAPHIC EXPOSURE (OPTIONAL)
For direct radiography, you can set the following maximum collimator apertures for the film or
cassette size used:
−
24 cm; the visible image has a diameter of 22 cm
−
30 cm image intensifier (not available in the USA)
For tube voltage, use the value that the system has automatically selected during the previous
fluoroscopy. If necessary, you can correct this value manually.
The mAs value (tube current in mA × time in s) is always set manually.
Set exposure time in Seconds using the SEC up/down arrows.
The tube current ranges from 20 mA. The system automatically adjusts this value to reach the
manually set value. The exposure timer automatically updates the display from the manually set
value and appears rounded to the first digit after the decimal point on the display.