| Booster
Collimator System |
| Basic Idea
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| | Unshielded
copper secondary collimators were installed in summer 2002, |
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| with
a plan to shield them later. |
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| | Due the the unexpected extent of the shielding and
the difficulty of working |
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| in the area, the design was ultimately abandoned as
unacceptable. |
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| | Collimators
were removed during the January shutdown. |
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| | A new
collimator system is being designed with steel secondary jaws fixed |
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| within
a movable shielding body. |
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| | Hope
to have then ready before summer shutdown. |
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