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| WEPAB131 |
Magnetic Tuning and Installation Modifications of U48 Undulator for the Delhi Light Source (DLS) |
2918 |
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- M. Tischer, P. Neumann, A. Schöps, P. Vagin, T. Vielitz, T. Wohlenberg
DESY, Hamburg, Germany
- M. Aggarwal, R.N. Dutt, S. Ghosh, J. Karmakar, S. Sahu
IUAC, New Delhi, India
- J. Bahrdt, E.C.M. Rial
HZB, Berlin, Germany
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A compact THz radiation facility based on the principle of a pre-bunched Free Electron Laser, called Delhi Light Source (DLS) is at the final stage of commissioning at IUAC, New Delhi, India. For generation of THz radiation in DLS, an undulator with period length of 48 mm (U48), built by HZB and refurbished at DESY will be used. The magnetic tuning and the field measurements have been done on the U48 along with the design and installation of correction coils at the entrance/exit of the U48. In addition, horizontal and vertical ambient field correction coils were integrated into the magnet girders. A quadrupole correction coil along the vacuum chamber in order to mitigate the defocusing effect of the U48 on the electron beam has been designed. The current through all coils has been adjusted as a function of the gap by the new control system designed for the U48. In addition, an extruded aluminium vacuum chamber was designed and fabricated and will be aligned with the the undulator soon.
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| DOI • |
reference for this paper
※ https://doi.org/10.18429/JACoW-IPAC2021-WEPAB131
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| About • |
paper received ※ 19 May 2021 paper accepted ※ 05 July 2021 issue date ※ 11 August 2021 |
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