Grid Attachment Unit (Option); Overview; Adhering The Grid; Precautions - Canon CXDI-80C Service Manual

4. Grid attachment unit (option)

4.1 Overview

This unit is used to position the grid on the detector. It is used when positioning the grid on the
front surface of the detector with a view to eliminating the scattered radiation which occurs
when the X-rays pass through subjects. It serves its purpose only when it is used in combination
with the detector and one of the available grids. Consequently, it is not used as a discrete unit
(that is, without a grid). It is designed not to be held and fixed in place by a locking mechanism,
for instance: However, by using it in combination with the handle unit which is a separately
available option, it can be held and fixed in place on the detector.
* The grids are provided by the sales companies so only the specification requirements of the
grids are presented.
(Refer to "5.9 Grid specifications" under "5. Specifications" of "Chapter 1 Overview.")
(Grid attachment opening)
Handle unit attachment opening
Detector (groove) hook

4.2 Adhering the grid

4.2.1 Precautions

• The grid must be handled very carefully since it has a low level of structural strength.
• No guarantees are given in the event that the grid attachment unit has been dropped or
subjected to impact or loads.
• The spacer sheet is a part designed to prevent marks and scratches when using the grid
attachment unit and grid without securing (adhering) them. This means that it is not required
when the grid attachment unit and grid are to be adhered for use and that the spacer sheet
adhered to the grid attachment unit must be peeled off without fail.
• The work stand used to adhere the grid must be flat and clean.
• The double-sided adhesive tape must be adhered in such a way that it does not protrude
beyond the edges of the grid attachment unit.
• The adhesion surface must be cleaned so that all grease or any other foreign matter is removed.
* Refer to "Precautions for attaching the grid" in "5.9 Grid specifications" under
"5. Specifications" of "Chapter 1 Overview."
3 . Description of Functions
3 .
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Grid
Spacer
attachment
sheet
surface