Fluke Biomedical 440RF - Manual (Page 13)

Operation
Instrument Positioning and Scanning
2
2-5
Figure 2-3. Chamber Reference Dimensions
2.44”,
6.2 cm
1.97”
5.0 cm
2.44”
6.2 cm
Centerline
and Chamber Axis
4.98”
12.4 cm
Chamber
Axis
Chamber
Front
Mylar
Window
Plane
1.125”, 2.96 cm
Probe Assembly
Check Source
Plastic Bumper
Operational Check Source Ends
Mounting Ring
Magnesium Window
Chamber Defining Circle
Ion Chamber
“Measurement Plane”
Plastic Bumper Plane”
Ion Chamber Mid-Plane