publication . Article . 1999

A conduction-cooled, 680-mm-long warm bore, 3-T Nb3Sn solenoid for a Cerenkov free electron laser

Wessel, W.A.J.; den Ouden, A.; Krooshoop, H.J.G.; ten Kate, H.H.J.; Wieland, J.; van der Slot, P.J.M.;
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  • Published: 01 Jan 1999
Abstract
A compact, cryocooler cooled Nb3Sn superconducting magnet system for a Cerenkov free electron laser has been designed, fabricated and tested. The magnet is positioned directly behind the electron gun of the laser system. The solenoidal field compresses and guides a tube-shaped 100 A, 500 kV electron beam. A two-stage GM cryocooler, equipped with a first generation ErNi5 regenerator, cools the epoxy impregnated solenoid down to the operating temperature of about 7.5 K. This leaves a conservative operational margin for the MJR type of Nb3Sn conductor of about 350% (I c) at 3T. Current leads with HTS sections between the first and second stage of the cryocooler eff...
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[l] M.T.G. van der Laan, R.B. Tax, H.H.J. ten Kate, L.J.M. van de Klundert, “A 1 T, 0.33 m bore superconducting magnet operating with cryocoolers at 12 K,” IEEE Trans. on Mag., vol. 28, no. 1, pp. 633-636, Januaryl992.

[2] P.J.M. van der Slot, J. Couperus, W.J. Witteman, A.N. Lebedev, E.G. Krastelev, et al., “A Cherenkov free electron laser with high peak power,” Nucl. Instr. and Meth, in Phys. Res. A, 358 (1995) 100 [OpenAIRE]

[3] K. Koyanagi, M. Urata, Y. Ohtani, T. Kuriyama, K. Yamamoto, S. Nakayama, T. Yazawa, et al, “A Cryocooler-cooled 10 T Superconducting Magnet with 100 mm Room Temperature Bore;' IEEE Trans. on Mag., vol. 32, no. 4, pp. 2558-2561, July 1996.

[4] J. Wieland, J. Couperus, P.J.M. van der Slot, W.J. Witteman, “First lasing of a Cerenkov free-electron laser with annular electron beam,” submitted to Nucl. Instr. and Meth. in Phys. Res. A

Abstract
A compact, cryocooler cooled Nb3Sn superconducting magnet system for a Cerenkov free electron laser has been designed, fabricated and tested. The magnet is positioned directly behind the electron gun of the laser system. The solenoidal field compresses and guides a tube-shaped 100 A, 500 kV electron beam. A two-stage GM cryocooler, equipped with a first generation ErNi5 regenerator, cools the epoxy impregnated solenoid down to the operating temperature of about 7.5 K. This leaves a conservative operational margin for the MJR type of Nb3Sn conductor of about 350% (I c) at 3T. Current leads with HTS sections between the first and second stage of the cryocooler eff...
Download from

[l] M.T.G. van der Laan, R.B. Tax, H.H.J. ten Kate, L.J.M. van de Klundert, “A 1 T, 0.33 m bore superconducting magnet operating with cryocoolers at 12 K,” IEEE Trans. on Mag., vol. 28, no. 1, pp. 633-636, Januaryl992.

[2] P.J.M. van der Slot, J. Couperus, W.J. Witteman, A.N. Lebedev, E.G. Krastelev, et al., “A Cherenkov free electron laser with high peak power,” Nucl. Instr. and Meth, in Phys. Res. A, 358 (1995) 100 [OpenAIRE]

[3] K. Koyanagi, M. Urata, Y. Ohtani, T. Kuriyama, K. Yamamoto, S. Nakayama, T. Yazawa, et al, “A Cryocooler-cooled 10 T Superconducting Magnet with 100 mm Room Temperature Bore;' IEEE Trans. on Mag., vol. 32, no. 4, pp. 2558-2561, July 1996.

[4] J. Wieland, J. Couperus, P.J.M. van der Slot, W.J. Witteman, “First lasing of a Cerenkov free-electron laser with annular electron beam,” submitted to Nucl. Instr. and Meth. in Phys. Res. A

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