Superconducting 119-pole wiggler with a 2.1-T field and 30-mm period length for the ALBA storage ring

Abstract

A superconducting 119 pole wiggler with a 2.1 T operating field and 30 mm period length, which is intended for use at the ALBA Synchrotron Light Facility (SLF), Barcelona, Spain, has been designed and manufactured at the Budker Institute of Nuclear Physics, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia. The interpole gap and aperture of the beam are 12.6 and 8.5 mm respectively. The total radiation power reaches 16 kW when the current of the 3 GeV electron beam is 0.4 A. In May 2010, after suc cessful testing in Novosibirsk, the wiggler was transported to the ALBA SLF and was retested outside of the storage ring. The maximum field achieved by training of the magnet is 2.26 T. Owing to the improved cryostat structure, the equilibrium operating temperature of the magnet is brought down to 3.5 K, guaranteeing reli able operation of the device and zero liquid helium consumption. The basic parameters of the wiggler's mag netic and cryogenic systems, as well as the results of their tests, are presented.

Upgrading and Experiment of the 6T Superconducting Wiggler Magnets’ Cryogenic System

“…According to different requirements, the insert is designed in the opposite direction according to the periodic arrangement structure, generating a periodically changing magnetic eld in the direction of the beam. Under the in uence of the magnetic eld that changes periodically along the direction of the beam motion, the electron beam is periodically and repeatedly in the insert and superimposed on each other, thus increasing the intensity of the synchrotron radiation light [4] [5].…”

“…Since 1979, the Stanford Synchrotron Radiation Light Source (SSRL) rst used the light source device and provided the strongest X-ray beam at that time. At present, Wiggler devices and undulator devices are widely used in the third and fourth generations of synchrotron radiation light sources [4] [6] [7].…”