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Title: PETRA III - Status of the Storage Ring

Abstract

The project status for the reconstruction of the 2304 m long existing storage ring PETRA II into a third generation low emittance synchrotron radiation source is presented. To reach the design emittance of 1 nmrad at an energy of 6 GeV together with a beam current of at least 100 mA and a supply of 14 straight sections for the installation of undulators, several fundamental measures are foreseen. For the emittance of 1 nmrad a FODO lattice in seven arcs together with damping wiggler sections in two long straights are envisaged. One eighth of the ring gets new magnets arranged to DBA cells to provide space and the required optics for the undulators. A complete new separately supported vacuum system reduces drastically movements of beam position monitors and magnetic elements due to synchrotron radiation heat load. This is an important precondition for the orbit stabilization system. To beat multi bunch instabilities in order to get a high beam current a powerful wideband feedback system will be established. The planned topping up mode guarantees stable beam current and therefore stable thermal conditions for the experiments.

Authors:
; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ; ;  [1]
  1. Deutsches Elektronen Synchrotron (DESY), Notkestr. 85, D-22607 Hamburg (Germany) (and others)
Publication Date:
OSTI Identifier:
21049349
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Conference Proceedings; Journal Volume: 879; Journal Issue: 1; Conference: 9. international conference on synchrotron radiation instrumentation, Daegu (Korea, Republic of), 28 May - 2 Jun 2006; Other Information: DOI: 10.1063/1.2436034; (c) 2007 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; BEAM CURRENTS; BEAM MONITORING; BEAM POSITION; GEV RANGE; HEATING LOAD; PARTICLE BEAMS; PETRA STORAGE RING; STABILIZATION; SYNCHROTRON RADIATION; SYNCHROTRON RADIATION SOURCES; VACUUM SYSTEMS; WIGGLER MAGNETS

Citation Formats

Bacher, R., Balewski, K., Brefeld, W., Decking, W., Ebert, M., Eckoldt, H. J., Grabe-Celik, H., Jensen, J. P., Klute, J., Leuschner, A., Li, Y., Merz, M., Maidment, J., Minty, M., Petrov, A., Prenting, J., Racky, B., Sahoo, G. K., Seidel, M., and Tischer, M.. PETRA III - Status of the Storage Ring. United States: N. p., 2007. Web. doi:10.1063/1.2436034.
Bacher, R., Balewski, K., Brefeld, W., Decking, W., Ebert, M., Eckoldt, H. J., Grabe-Celik, H., Jensen, J. P., Klute, J., Leuschner, A., Li, Y., Merz, M., Maidment, J., Minty, M., Petrov, A., Prenting, J., Racky, B., Sahoo, G. K., Seidel, M., & Tischer, M.. PETRA III - Status of the Storage Ring. United States. doi:10.1063/1.2436034.
Bacher, R., Balewski, K., Brefeld, W., Decking, W., Ebert, M., Eckoldt, H. J., Grabe-Celik, H., Jensen, J. P., Klute, J., Leuschner, A., Li, Y., Merz, M., Maidment, J., Minty, M., Petrov, A., Prenting, J., Racky, B., Sahoo, G. K., Seidel, M., and Tischer, M.. Fri . "PETRA III - Status of the Storage Ring". United States. doi:10.1063/1.2436034.
@article{osti_21049349,
title = {PETRA III - Status of the Storage Ring},
author = {Bacher, R. and Balewski, K. and Brefeld, W. and Decking, W. and Ebert, M. and Eckoldt, H. J. and Grabe-Celik, H. and Jensen, J. P. and Klute, J. and Leuschner, A. and Li, Y. and Merz, M. and Maidment, J. and Minty, M. and Petrov, A. and Prenting, J. and Racky, B. and Sahoo, G. K. and Seidel, M. and Tischer, M.},
abstractNote = {The project status for the reconstruction of the 2304 m long existing storage ring PETRA II into a third generation low emittance synchrotron radiation source is presented. To reach the design emittance of 1 nmrad at an energy of 6 GeV together with a beam current of at least 100 mA and a supply of 14 straight sections for the installation of undulators, several fundamental measures are foreseen. For the emittance of 1 nmrad a FODO lattice in seven arcs together with damping wiggler sections in two long straights are envisaged. One eighth of the ring gets new magnets arranged to DBA cells to provide space and the required optics for the undulators. A complete new separately supported vacuum system reduces drastically movements of beam position monitors and magnetic elements due to synchrotron radiation heat load. This is an important precondition for the orbit stabilization system. To beat multi bunch instabilities in order to get a high beam current a powerful wideband feedback system will be established. The planned topping up mode guarantees stable beam current and therefore stable thermal conditions for the experiments.},
doi = {10.1063/1.2436034},
journal = {AIP Conference Proceedings},
number = 1,
volume = 879,
place = {United States},
year = {Fri Jan 19 00:00:00 EST 2007},
month = {Fri Jan 19 00:00:00 EST 2007}
}