Superferric microundulator with high field

Autor: V.T. Eremichev, V.N. Tsikhon, V.A. Papadichev, V.S. Vysotsky
Rok vydání: 1993
Předmět:
Zdroj: Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. 331:748-751
ISSN: 0168-9002
DOI: 10.1016/0168-9002(93)90150-g
Popis: A model of a plane superferric undulator with a period of 8 mm was made and tested. Its length is 100 mm, its width is 50 mm, and 4 and 2.5 mm air gaps between upper and lower poles were used for magnetic measurements. The gap can be changed by inserting spacers of the necessary thickness. The magnetic structure is made of magnetically soft low carbon iron (Armco). The slots for winding were machine cut. The windings are made of 40 turns of Nb 3 Sn superconductor or 10 turns of NbTi for the 4 and 2.5 mm gaps, respectively. The maximum current in the first series of experiments was 70 A and in the second series it was 450 A. Poles of three types were tried. The maximum magnetic field amplitude of 7.7 kG was measured with the poles in the form of a trapezoid. This field corresponds to an undulator deflection parameter K = 0.57. Results of magnetic measurements are presented.
Databáze: OpenAIRE