Open AccessRecent trends of insertion‐device technology for X‐ray sources
Author(s) -
Kitamura Hideo
Publication year - 2000
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/s0909049500002983
Subject(s) - undulator , synchrotron radiation , storage ring , thermal emittance , physics , spring 8 , synchrotron , magnet , optics , particle accelerator , high energy x rays , beam emittance , radiation , beamline , beam (structure) , optoelectronics , quantum mechanics
As a consequence of the developments of in‐vacuum undulators, where permanent magnet arrays are located in an ultrahigh vacuum, the in‐vacuum mini‐gap undulator with very short period has been successful in the X‐ray ring of NSLS in collaboration with SPring‐8, producing a new concept for synchrotron radiation facilities. The key feature of the concept is the combination of in‐vacuum mini‐gap undulators and a low‐emittance ring with moderate beam energy. In other words there are possibilities for the design of a moderate‐cost medium‐sized synchrotron radiation facility, the performance of which may be comparable with that of the existing large‐scale facilities. Here the performance of in‐vacuum undulators is described, particularly of the mini‐gap type. Also described is the essence of the new concept for synchrotron radiation facilities, the so‐called new third‐generation light source.