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The leak testing of the east tube has been finished. Five leaks have been
detected. After sealing them the vacuum meets the requirements.
A small leak at a flange now determines the pressure (p(N2) ~
5•10-9 Torr in the middle of the tube). This will be
mended soon.
The residual gas is dominated mainly by water.
The tube will be encapsulated by rockwool in order to make it possible
to heat it up.