SPEAR III-a brighter source at SSRL

Author

Hettel, R. ; Boyce, R. ; Brennan, S. ; Corbett, J. ; Cornacchia, M. ; Davies-White, W. ; Garren, A. ; Hofmann, A. ; Limborg, C. ; Nosochkov, Y. ; Nuhn, H.-D. ; Rabedeau, T. ; Safranek, J. ; Wiedemann, H.

Author_Institution

Synchrotron Radiat. Lab., Stanford Univ., CA, USA

Volume

1

fYear

1997

fDate

12-16 May 1997

Firstpage

838

Abstract

By replacing the magnets and vacuum chamber for the 3 GeV SPEAR II storage ring, the natural emittance of the machine can be reduced from 130 to 18 nm-rad and the stored current can be raised from 100 to 200 mA with a 50 h lifetime. This configuration increases focused photon flux for insertion device beamlines by an order of magnitude and the photon brightness for future undulators would exceed 10¹⁸ at 5 keV. Due to a higher critical energy, the photon flux in the 20 keV range for bending magnet beamlines increases by more than two orders of magnitude. We present preliminary SPEAR III design study results and plans to implement the facility upgrade with minimal downtime for SSRL users

Keywords

accelerator magnets; electron accelerators; storage rings; wigglers; 200 mA; SPEAR III; SSRL; bending magnet beamlines; facility upgrade; focused photon flux; insertion device beamlines; magnets; natural emittance; photon flux; stored current; undulators; vacuum chamber; Apertures; Brightness; Lattices; Magnetic flux; Mirrors; Particle beams; Stimulated emission; Strontium; Structural beams; Undulators;

fLanguage

English

Publisher

ieee

Conference_Titel

Particle Accelerator Conference, 1997. Proceedings of the 1997

Conference_Location

Vancouver, BC

Print_ISBN

0-7803-4376-X

Type

conf

DOI

10.1109/PAC.1997.749854

Filename

749854