Status of Bartoszek Engineering’s effort on the Homestake proposal
A New Stripline Connection to JPARC Horn 1 Larry Bartoszek BARTOSZEK ENGINEERING 9/23/04.
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Transcript of A New Stripline Connection to JPARC Horn 1 Larry Bartoszek BARTOSZEK ENGINEERING 9/23/04.
Polarity of plates• New design has this polarity :
RED-BLUE-RED-BLUE/BLUE-RED-BLUE-RED
• There is a mirror plane of symmetry for horns
• If there is no BLUE/BLUE mirror symmetry, the connection becomes almost impossible– Plates have to get around each other
“Ears” connect inner and outer conductors to stripline plates.
Ears may be assembled last during horn module assembly.
Advantages of this design
• Tolerances in manufacturing of parts may be looser than the first design
• Tolerance-caused differences can be taken up in the loose fit of bolt holes
• Design does not rely on the accuracy of rolled and bent parts
• No plates should need machining at assembly
• Current may be more cylindrically uniform
Possible disadvantages
• The gap in between plates is not as constant as in the first design
• The overlap between blue and red plates is not as perfect as it was in the first design– Do these differences cause a problem for the
electrical characteristics of the stripline?
What is missing?
• Need to develop a clamping mechanism to resist forces from stripline
• Need to design insulators as part of clamping mechanism
Fastener Bill of Materials (so far)
DESCRIPTION QTY
12 MM THREADED ROD 24
HEX NUT - M12 24
PLAIN WASHER - ANSI M - 16 N 48
HEX-HEAD BOLT - ISO 4014 - M16 X 110 24
HEX NUT - M16 24
PLAIN WASHER - ANSI B18.22 M - 10 R 16
HEX BOLT - ANSI - M10 X 45 16
M12 X 55 Socket Head Cap Screw 84
FLAT WASHER-ANSI M - 12 W 64
M12 X 50 Hex Head Cap Screw 64
M12 X 25 Socket Head Cap Screw 88