Mu2e ESS engineering meeting (22 Sep 2015)
Chaired by: Dr. Nagaslaev, Vladimir
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State of drawings
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Need a list of things to do
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Ways to reduce foil deflection
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Under std conditions and 1lb tension foil deflection is 97u
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Reduction opportunities:
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Increase tension – not enough
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Reduce foil spacing – what is the pitch limit? Could be just first 20mm, whole sheet, how about Titanium foil sheet?
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Programmed frame profile shape – need to follow exact field shape
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Complexed shape of the cathode – narrow width in the first few cm? However: reducing the width of cathode twice reduces deflection by 25% only
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Reducing E-field, this requires increasing betaX; deflection ~1/betaX
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Action items:
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VN: calculation of acceptable cathode geometry options
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Matt: follow up on available Ti foil quality
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Make a decision by next meeting Sept. 29
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Will be the Keyence demonstration on Wednesday
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Spring prototype
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Matt: Tom Diehl (?) has a measurement system for DES structures – large scale + high precision
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