Superconducting elliptical undulator

13 Jul 2020, 20:00
Poster SR and FEL sources and centers Poster Session


Pavel Kanonik (Budker Institute of Nuclear Physics)


Circularly polarized photons are widely used for conducting experiments to study the magnetic structures of matter. On the basis of superconducting coils developed at the Budker Institute of nuclear physics for a short-period superconducting planar undulator, a superconducting elliptical undulator with a period of ~2.2 cm and an elliptic coefficient of ~ 0.7 is proposed. The poles of the upper and lower halves of the undulator are located at an angle of 45 degrees to each other in the horizontal plane, which creates a periodic vertical and horizontal elliptical field of up to 1 T vertically and 0.7 T horizontally. There is a possibility to create a fast switching left and right polarizations of radiation at a zero angle from two sequentially installed undulators by quickly switching the electron orbit using correction magnets external to the cryostat (up to hundreds of Hertz). A short prototype of an elliptical superconducting undulator was made and magnetic measurements were made in the bath cryostat. The paper presents numerical calculations of the undulator fields, its spectra, and the experimentally measured field.

Primary author

Pavel Kanonik (Budker Institute of Nuclear Physics)


Sergey Khrushchev (BINP) Alexey Bragin (Budker Institute of Nuclear Physics) Alexandr Erokhin (BINP) Nikolay Mezentsev (Budker Institute of Nuclear Physics) Olga Tarasenko (BINP) Valeriy Tsukanov (BINP) Askold Volkov (BINP) Artem Zorin (BINP) Vitaliy Shkaruba (BINP)

Presentation Materials