First experiments with a 100 period superconductive undulator with a period length of 3.8 mm

M. Fritz; T. Hezel; M. Homscheidt; H. O. Moser; R. Rossmanith; Th. Schneider; H. Backe; S. Dambach; F. Hagenbuck; K. -H. Kaiser; W. Lauth; A. Steinhof; Th. Walcher

arXiv · physics/9806049

First experiments with a 100 period superconductive undulator with a period length of 3.8 mm

M. Fritz·T. Hezel·M. Homscheidt·H. O. Moser·R. Rossmanith·Th. Schneider·H. Backe·S. Dambach·F. Hagenbuck·K. -H. Kaiser·W. Lauth·A. Steinhof·Th. Walcher

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Abstract

A prototype of a novel superconductive undulator with a period length of 3.8 mm is described. The undulator is 100 periods long. In the first tests described in this paper the undulator was cooled in a helium bath and it was shown that it can be operated as expected with a maximum current of 1400 A. Afterwards the undulator field was measured with a miniature Hall probe with an active area of (100x100)x10^-6 m^2. Calculated and measured field distributions are in good agreement. A cryostat for a beam test at Mainz microtron MAMI was built in which liquid helium cools indirectly the in-vacuum undulator. At the moment the cryostat is tested and optimized.

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M. Fritz, T. Hezel, M. Homscheidt, H. O. Moser, R. Rossmanith, Th. Schneider, H. Backe, S. Dambach, F. Hagenbuck, K. -H. Kaiser, W. Lauth, A. Steinhof, Th. Walcher. 1998-06-30. First experiments with a 100 period superconductive undulator with a period length of 3.8 mm. https://arxiv.org/abs/physics/9806049

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