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Design of the cryogenic system of the CBM magnet
Alexey Bragin, Mikhail Kholopov Budker Institute of Nuclear Physics, Novosibirsk, Russia April 2018 October 2010
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Cryogenic diagram For the transfer line the most tubes were chosen to be DN15 STD, so OD = mm, ID = 15.8 mm. The valves are of PN25 type. Valves stems have interceptions at ~ 65 K temperatures. Pressure drop about bar at nominal operation Heat transfer to the radiation shields is on return 50 K line. The return line will have about 60 K
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Total heat loads Total heat loads: for 4.6 K He is 33.4 W
Mass rates: for 4.6 K He is 1.7 g/s for 50 K He is 1.8 g/s
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Design of the Branch Box, view 1
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Design of the Branch Box, view 2
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Design of the Feed Box, view 1
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Design of the Feed Box, view 2
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Design of the transfer line, view 1
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Design of the transfer line, view 2
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Design of the transfer line, view 3
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Design of the transfer line, view 4
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Interface (as example)
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