Feasibility of a Short-Period Superconducting Undulator Using 2G HTS Tapes

Author

Kim, Suk Hong ; Doose, Charles L. ; Jaski, Mark S. ; Kasa, Matthew T.

Author_Institution

Adv. Photon Source, Argonne Nat. Lab., Argonne, IL, USA

Volume

21

Issue

3

fYear

2011

fDate

6/1/2011 12:00:00 AM

Firstpage

1709

Lastpage

1712

Abstract

This paper presents a design concept of a planar-type superconducting undulator (SCU) using YBCO high-temperature superconductor (HTS) tapes. The SCU has a period length of 15 mm, and the tape conductor has dimensions of 4-mm width and 0.1-mm thickness. It has been shown that the conductor transition from one coil groove to the one in the next period is possible by making a semi-circular concave loop of the tape for continuous winding in the same direction. Non-uniform current distribution in the tape may cause field quality degradation. Assuming a uniform current density in the tape, the engineering critical-current density of the HTS in the coil for the design and the corresponding achievable on-axis peak field at 4.2 K were calculated.

Keywords

barium compounds; copper compounds; critical current density (superconductivity); high-temperature superconductors; superconducting tapes; wigglers; yttrium compounds; 2G HTS tapes; SCU; YBCO; YBCO high-temperature superconductor; continuous winding; critical-current density; field quality degradation; planar-type superconducting undulator; semicircular concave loop; short-period superconducting undulator; Coils; Conductors; Superconducting magnets; Undulators; Windings; Yttrium barium copper oxide; Insertion device; YBCO 2G HTS tape; superconducting magnet; superconducting undulator;

fLanguage

English

Journal_Title

Applied Superconductivity, IEEE Transactions on

Publisher

ieee

ISSN

1051-8223

Type

jour

DOI

10.1109/TASC.2010.2089030

Filename

5635357