naa a22 4500 510767249 CHVBK 20180411083200.0 cr unu---uuuuu 180411e20130201xx s 000 0 eng 10.1007/s12043-012-0482-3 doi (NATIONALLICENCE)springer-10.1007/s12043-012-0482-3 Measurement, analysis and correction of the closed orbit distortion in Indus-2 synchrotron radiation source [Elektronische Daten] [RIYASAT HUSAIN, A GHODKE, SURENDRA YADAV, A HOLIKATTI, R YADAV, P FATNANI, T PUNTAMBEKAR, P HANNURKAR] The paper presents the measurement, analysis and correction of closed orbit distortion (COD) in Indus-2 at 550MeV injection energy and 2GeV synchrotron radiation user run energy. The measured COD was analysed and fitted to understand major sources of errors in terms of the effective quadrupole misalignments. The rms COD was corrected down to less than 0.6mm in both horizontal and vertical planes. A golden orbit was set for the operating synchrotron radiation beamlines. With COD correction, the injection efficiency at 550MeV was improved by ~50% and the beam lifetime at 2GeV was increased by ~8h. In this paper, the method of global COD correction based on singular value decomposition (SVD) of the orbit response matrix is described. Results for the COD correction in both horizontal and vertical planes at 550 MeV injection energy and at 2GeV synchrotron radiation user run energy are discussed. Indian Academy of Sciences, 2013 Indus-2 nationallicence storage ring nationallicence closed orbit distortion nationallicence singular value decomposition nationallicence betatron tune nationallicence dispersion function nationallicence HUSAIN RIYASAT Raja Ramanna Centre for Advanced Technology, 452 013, Indore, India aut GHODKE A. Raja Ramanna Centre for Advanced Technology, 452 013, Indore, India aut YADAV SURENDRA Raja Ramanna Centre for Advanced Technology, 452 013, Indore, India aut HOLIKATTI A. Raja Ramanna Centre for Advanced Technology, 452 013, Indore, India aut YADAV R. Raja Ramanna Centre for Advanced Technology, 452 013, Indore, India aut FATNANI P. Raja Ramanna Centre for Advanced Technology, 452 013, Indore, India aut PUNTAMBEKAR T. Raja Ramanna Centre for Advanced Technology, 452 013, Indore, India aut HANNURKAR P. Raja Ramanna Centre for Advanced Technology, 452 013, Indore, India aut Pramana Springer-Verlag 80/2(2013-02-01), 263-275 0304-4289 80:2<263 2013 80 12043 https://doi.org/10.1007/s12043-012-0482-3 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s12043-012-0482-3 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- HUSAIN RIYASAT Raja Ramanna Centre for Advanced Technology, 452 013, Indore, India aut NATIONALLICENCE 700 1- GHODKE A. Raja Ramanna Centre for Advanced Technology, 452 013, Indore, India aut NATIONALLICENCE 700 1- YADAV SURENDRA Raja Ramanna Centre for Advanced Technology, 452 013, Indore, India aut NATIONALLICENCE 700 1- HOLIKATTI A. Raja Ramanna Centre for Advanced Technology, 452 013, Indore, India aut NATIONALLICENCE 700 1- YADAV R. Raja Ramanna Centre for Advanced Technology, 452 013, Indore, India aut NATIONALLICENCE 700 1- FATNANI P. Raja Ramanna Centre for Advanced Technology, 452 013, Indore, India aut NATIONALLICENCE 700 1- PUNTAMBEKAR T. Raja Ramanna Centre for Advanced Technology, 452 013, Indore, India aut NATIONALLICENCE 700 1- HANNURKAR P. Raja Ramanna Centre for Advanced Technology, 452 013, Indore, India aut NATIONALLICENCE 773 0- Pramana Springer-Verlag 80/2(2013-02-01), 263-275 0304-4289 80:2<263 2013 80 12043 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer