Open AccessPure‐type superconducting permanent‐magnet undulator
Author(s) -
Tsuru Rieko,
Kitamura Hideo,
Tanaka Takashi
Publication year - 2005
Publication title -
journal of synchrotron radiation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.172
H-Index - 99
ISSN - 1600-5775
DOI - 10.1107/s0909049505013610
Subject(s) - undulator , synchrotron radiation , magnet , offset (computer science) , synchrotron , superconductivity , magnetization , magnetic field , physics , condensed matter physics , electron , superconducting magnet , optics , materials science , computational physics , radiation , nuclear physics , computer science , quantum mechanics , programming language
A novel synchrotron radiation source is proposed that utilizes bulk‐type high‐temperature superconductors (HTSCs) as permanent magnets (PMs) by in situ magnetization. Arrays of HTSC blocks magnetized by external magnetic fields are placed below and above the electron path instead of conventional PMs, generating a periodic magnetic field with an offset. Two methods are presented to magnetize the HTSCs and eliminate the field offset, enabling the HTSC arrays to work as a synchrotron radiation source. An analytical formula to calculate the peak field achieved in a device based on this scheme is derived in a two‐dimensional form for comparison with synchrotron radiation sources using conventional PMs. Experiments were performed to demonstrate the principle of the proposed scheme and the results have been found to be very promising.