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<span style="color:black" class="ContentPasted0">This morning the storage ring experienced a vacuum fault caused by the downstream 13ID undulator coming into contact with the insertion device vacuum chamber. Currently, the insertion</span><span style="font-size:10.0pt;color:black"></span></p>
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<span style="color:black" class="ContentPasted0">device group is in the process of removing the damaged insertion device so that the vacuum chamber can be inspected. We should know</span><span style="font-size:10.0pt;color:black"></span></p>
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<span style="color:black" class="ContentPasted0">by 6:00 PM today if the vacuum chamber needs to be replaced. If the chamber needs to be replaced, we anticipate that the minimum downtime will</span><span style="font-size:10.0pt;color:black"></span></p>
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<span style="color:black" class="ContentPasted0">extend for an additional 30 hours to 12:00 A.M. Thursday morning (Wednesday night) . We are currently preparing a replacement vacuum chamber so that additional</span><span style="font-size:10.0pt;color:black"></span></p>
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<span style="color:black" class="ContentPasted0">delay is not caused as a result of the decision to replace the chamber. We will provide an update today at 6:00 PM or after the insertion device is removed </span><span style="font-size:10.0pt;color:black"></span></p>
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<span style="color:black" class="ContentPasted0">and the vacuum chamber is inspected, with the anticipated return to normal x-ray operations.</span></p>
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