Optics and dynamic aperture studies for synchrotron radiation source DELSY

Abstract

The project DELSY, a 1.2 GeV synchrotron radiation source [1] is being under development at JINR, Dubna, Russia. This source is dedicated to the investigations on condensed matter physics, atomic physics, biology, medicine, chemistry, micromechanics, lithography and others. For DELSY storage ring the layout with four straight sections was chosen. Every quadrant consists of MBA-structure and two halves of straight sections. The circumference of the ring is about 136 m; the emittance of the electron beam is 11.4 nm. The effects of the very strong wiggler of 10 T and undulator (0.75 T, 150 periods) on beam parameters are discussed. The results of influence of machine imperfections on the optics properties are given.

DELSY—Dubna ELectron SYnchrotron at JINR

“…The energy will be increased up to 1.2 GeV (with respect to 0.9 GeV at AmPS).The optics of the DELSY storage ring is characterized by its 2-fold symmetry. Every quadrant consists of the MBA structure: two halves of straight sections and two periodic cells [6,7]. The periodic cell consists of two dipoles and three quadrupoles.…”

Effect of the superconducting wiggler on the DELSY beam dynamics

“…">AbstractThe project DELSY is being under development at JINR, Dubna, Russia. This synchrotron radiation source [1][2][3] is dedicated to the investigation on condensed matter physics, atomic physics, biology, medicine, chemistry, micromechanics, lithography and others. The storage ring DELSY is an electron storage ring with the beam energy 1.2 GeV and 4 straight sections to accommodate accelerator equipment and insertion devices.…”

“…The problem is rather serious for the DELSY machine because the energy of the electron beam is small while the wiggler's magnetic field is strong.In this paper we consider two models of the wiggler's magnetic field with and without the focusing caused by the sextupolar field of the wiggler as we need to develop the requirements to the wiggler design. We study the influence of the 10 T wiggler on the beam dynamics in the DELSY storage ring and propose a possible scheme to cure it [2][3][4]. The combined work of the insertion devices is presented too.…”