9 using the ion chamber test stand and accessories – Fluke Biomedical 10100AT User Manual

Page 35

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Operation

Using the Ion Chamber Test Stand and Accessories

2

2-17

2.9 Using the Ion Chamber Test Stand and Accessories

The purpose of the test stand is to provide an easily reproducible central x-ray beam alignment of both
the Model 35080/80A/80B kVp Divider and the Model 96035B ion chamber. The test stand achieves this
goal for both over-table and under-table x-ray tube configurations. Features of the test stand are
described in more detail below (refer to Figure 2-3).

1. A beam port has been provided in the

baseplate. This port allows the x-ray
beam from under-table tubes to pass up
to the ion chamber and kVp Divider
without attenuation. Notches in this port
also facilitate correct positioning of the
kVp divider on the baseplate when using
the test stand with over-table tubes.

2. This test stand is supplied with a square

rod for easy alignment of components.

3. The test stand includes a holder tray for

the kVp divider. Its purpose is to hold
the kVp divider in an inverted position
above the ion chamber when using the
system with under-table tubes.

4. Wire safety clips are provided on each

interface cable. The user should always
use these clips to fasten the interface
cables to the test stand near its
baseplate. This practice will greatly
reduce the likelihood of tipping the test
stand during use.

5. The test stand rod is made of stainless

steel for added rigidity. In addition, a
pair of scribe marks are made to the rod
to allow vertical reproducibility of the test
setup. Their use is optional but highly
recommended.



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