New Run of COUPP (T-945)

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New Run of COUPP (T-945)
M. Crisler, Fermilab All Experimenters Meeting,
10 September 2007
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Preparations Complete July 2007

• New Quartz Inner Vessel
• Improved Handling
• Reduced Radon Exposure
• Improved Cleaning

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Preparations Complete July 2007

• New Quartz Inner Vessel
• New Bellows Assy (non-Thoriated weld)
• Improved Quartz-to-metal seals (PAB)
• Improved Cleaning Procedures (U of C A-0)
• Ultra High Purity Water (SNOLAB)
• Improved Photography
• Improved Operations Procedures

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Clean-up of the electronics
before
after
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CF3I fill accomplished in one shift
7/30/07
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Improved Photography
Camera 1
Camera 2
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Better Photography Means Better Reconstruction
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Wall events and bulk bubbles
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A first look at the data
no improvement on wall rate!!!_at_
but the bulk rate looks very interesting
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Thanks FERMILAB for Excellent Support

• AD cleaning facility at A-0
• PPD Engineering and Tech Support
• PPD CD support on DAQ issues
• Were very excited about the quality of the new
  data and looking forward to new physics
• Stay Tuned Wine Cheese on Last Years Results
  - Friday 21 September 2007 -