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Last updated on Sep. 21, 2004

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Vacuum Chamber

A beam duct placed downstream of the T1 target is heat up by the beam power of 220 kW. It is needed to be a large copper duct and cooled by water, as shown below.

[Beam Duct Heat]

However, we can make only one secondary charged beam line so that the duct has large area for cooling. Therefore, we consider to put magnets in a huge vacuum chamber, instead of putting a vacuum duct in pole gap of magnets.

[Vacuum Chamber Layout]
Layout of the beam lines.

Plan view of the vacuum chamber.

(kazuhiro.tanaka@kek.jp)