<html><head><title></title><style type="text/css"> p { margin: 0 0 0 0; font-family: Arial, sans-serif; font-size:10pt; font-weight: normal; font-style: normal; vertical-align: baseline; color: black; text-decoration: none; } div { border-width:0px; border-style: solid; border-color: red; } body { background-color: #fff; } p img { vertical-align: middle; } p b, li b { font-weight : bold; } p i, li i { font-style : italic; } p u, li u { text-decoration : underline; } p so, li so { text-decoration : line-through; } p sub, p sub { font-size : 70%; vertical-align: sub; } p sup, p sup { font-size : 70%; vertical-align: super; } ul { padding-left : 2em; /* for mozilla list marker box */ margin-left : 0; /* for IE list marker box */ } ol { padding-left : 2em; /* for mozilla list marker box */ margin-right : -0.5em; margin-left : 0; /* for IE list marker box */ } p.Style1, li.Style1 /*Normal*/ { margin-left: 0pt; margin-right: 0pt; text-align: left; font-family: 'Arial', sans-serif;; font-size: 10pt;font-weight: normal; 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text-align: left; font-family: 'Arial', sans-serif;; font-size: 10pt;font-weight: normal; font-style: normal; vertical-align: baseline; } p.Style7, li.Style7 /*Indent*/ { margin-left: 108pt; margin-right: 0pt; text-align: left; font-family: 'Arial', sans-serif;; font-size: 10pt;font-weight: normal; font-style: normal; vertical-align: baseline; } p.Style8, li.Style8 /*Title*/ { margin-left: 0pt; margin-right: 0pt; text-align: center; font-family: 'Times New Roman', sans-serif;; font-size: 24pt;font-weight: bold; font-style: normal; vertical-align: baseline; } p.Style9, li.Style9 /*Subtitle*/ { margin-left: 0pt; margin-right: 0pt; text-align: center; font-family: 'Times New Roman', sans-serif;; font-size: 18pt;font-weight: normal; font-style: normal; vertical-align: baseline; } </style></head><body><div id="mc-region-4" style="position: absolute; top: 11.25pt; left: 12pt; width: 332pt; "><a name="" /><p class="Style1"><span style="font-size: 13.26315789473684pt; font-family: 'Arial', sans-serif;"><b><span>Limits from wire aging for X40 luminosity running </span></b></span></p></div><div id="mc-region-34" style="position: absolute; top: 62.25pt; left: 18pt; width: 344.75pt; "><a name="" /><p class="Style1">The current on the wires is dominated by gate operation with central collisions.</p></div><div id="mc-region-38" style="position: absolute; top: 81pt; left: 228pt; width: 54pt; "><a name="" /><img border="0" src=".\WireAgingLimits_images/IMG0001_2611921.PNG" id="generatedImage38" path=".\WireAgingLimits_images/IMG0001_2611921.PNG" style="width: 54pt;height: 18.75pt;"></img></div><div id="mc-region-36" style="position: absolute; top: 93pt; left: 18pt; width: 89.25pt; "><a name="" /><img border="0" src=".\WireAgingLimits_images/IMG0002_2611937.PNG" id="generatedImage36" path=".\WireAgingLimits_images/IMG0002_2611937.PNG" style="width: 89.25pt;height: 12.75pt;"></img></div><div id="mc-region-37" style="position: absolute; top: 123pt; left: 18pt; width: 83.25pt; "><a name="" /><img border="0" src=".\WireAgingLimits_images/IMG0003_2611937.PNG" id="generatedImage37" path=".\WireAgingLimits_images/IMG0003_2611937.PNG" style="width: 83.25pt;height: 12.75pt;"></img></div><div id="mc-region-42" style="position: absolute; top: 128.25pt; left: 132pt; width: 283.25pt; "><a name="" /><p class="Style1">This is inner sector current per section at this highest rate above</p></div><div id="mc-region-43" style="position: absolute; top: 177pt; left: 24pt; width: 62.25pt; "><a name="" /><img border="0" src=".\WireAgingLimits_images/IMG0004_2611937.PNG" id="generatedImage43" path=".\WireAgingLimits_images/IMG0004_2611937.PNG" style="width: 62.25pt;height: 12.75pt;"></img></div><div id="mc-region-46" style="position: absolute; top: 176.25pt; left: 132pt; width: 149pt; "><a name="" /><p class="Style1">Length of inner sector short wires</p></div><div id="mc-region-47" style="position: absolute; top: 200.25pt; left: 30pt; width: 109.5pt; "><a name="" /><img border="0" src=".\WireAgingLimits_images/IMG0005_2611937.PNG" id="generatedImage47" path=".\WireAgingLimits_images/IMG0005_2611937.PNG" style="width: 109.5pt;height: 27.75pt;"></img></div><div id="mc-region-49" style="position: absolute; top: 206.25pt; left: 168pt; width: 124.25pt; "><a name="" /><p class="Style1">number of wires per section</p></div><div id="mc-region-51" style="position: absolute; top: 254.25pt; left: 24pt; width: 111pt; "><a name="" /><img border="0" src=".\WireAgingLimits_images/IMG0006_2611937.PNG" id="generatedImage51" path=".\WireAgingLimits_images/IMG0006_2611937.PNG" style="width: 111pt;height: 27.75pt;"></img></div><div id="mc-region-52" style="position: absolute; top: 296.25pt; left: 24pt; width: 72pt; "><a name="" /><img border="0" src=".\WireAgingLimits_images/IMG0007_2611937.PNG" id="generatedImage52" path=".\WireAgingLimits_images/IMG0007_2611937.PNG" style="width: 72pt;height: 27.75pt;"></img></div><div id="mc-region-68" style="position: absolute; top: 344.25pt; left: 24pt; width: 87pt; "><a name="" /><img border="0" src=".\WireAgingLimits_images/IMG0008_2611937.PNG" id="generatedImage68" path=".\WireAgingLimits_images/IMG0008_2611937.PNG" style="width: 87pt;height: 27.75pt;"></img></div><div id="mc-region-67" style="position: absolute; top: 351pt; left: 150pt; width: 60pt; "><a name="" /><img border="0" src=".\WireAgingLimits_images/IMG0009_2611937.PNG" id="generatedImage67" path=".\WireAgingLimits_images/IMG0009_2611937.PNG" style="width: 60pt;height: 12.75pt;"></img></div><div id="mc-region-66" style="position: absolute; top: 350.25pt; left: 252pt; width: 104pt; "><a name="" /><p class="Style1">Current wire aging limit</p></div><div id="mc-region-71" style="position: absolute; top: 392.25pt; left: 6pt; width: 413.75pt; "><a name="" /><p class="Style1">We could assume that the luminosity will increase from this 1/2 design to 40X design then this gives the following expected life time, but as will be discussed this is not the right assumption.</p></div><div id="mc-region-73" style="position: absolute; top: 428.25pt; left: 6pt; width: 68.25pt; "><a name="" /><img border="0" src=".\WireAgingLimits_images/IMG0010_2611953.PNG" id="generatedImage73" path=".\WireAgingLimits_images/IMG0010_2611953.PNG" style="width: 68.25pt;height: 27.75pt;"></img></div><div id="mc-region-82" style="position: absolute; top: 470.25pt; left: 6pt; width: 433.25pt; "><a name="" /><p class="Style1">A more reasonable assumption is that we are now limited by diamond size and other things so that we are not getting all the central events. We should then scale by the electronics acceptance rate and the rate that we open the gate. Then we get the following:</p></div><div id="mc-region-83" style="position: absolute; top: 519pt; left: 6pt; width: 105.75pt; "><a name="" /><img border="0" src=".\WireAgingLimits_images/IMG0011_2611953.PNG" id="generatedImage83" path=".\WireAgingLimits_images/IMG0011_2611953.PNG" style="width: 105.75pt;height: 12.75pt;"></img></div><div id="mc-region-85" style="position: absolute; top: 548.25pt; left: 6pt; width: 126pt; "><a name="" /><img border="0" src=".\WireAgingLimits_images/IMG0012_2611953.PNG" id="generatedImage85" path=".\WireAgingLimits_images/IMG0012_2611953.PNG" style="width: 126pt;height: 27.75pt;"></img></div><div></div></body></html>