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Title: Overview of Top-up Injection at Taiwan Light Source

Abstract

During the last two years, a series of beam parameters measurement, subsystem checkout, installation of various sensors, control program modification and hardware upgrade made the top-up injection possible in practical routine operation. Top-up injection is an operation mode in which the beam current in the storage ring is maintained above certain level by frequent injections. The routine current stability is in the range of 10-3 for long period of operation. The Top-up injection provides advantages in operation such as lower emittance, higher current, smaller coupling, smaller ID gaps, exotic bunch filling patterns, and higher bunch charge. It also provides constant thermal loading on all components in the storage ring and the optics components of beamlines, as well as constant signal to the beam position monitor. Discussions on the results of some measurements of booster and storage ring, the requirement of hardware upgrade and the summary of routine Top-up operation will be presented in this paper.

Authors:
; ; ; ; ; ; ; ; ; ; ; ; ; ; ;  [1]
  1. National Synchrotron Radiation Research Center, No. 101, Hsin-Ann Road, Hsin-chu, Taiwan (China)
Publication Date:
OSTI Identifier:
21049291
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: 10.1063/1.2435994; (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 INJECTION; BEAM MONITORING; BEAM MONITORS; BEAM OPTICS; BEAM POSITION; CONTROL; LIGHT SOURCES; LOADING; MODIFICATIONS; OPERATION; PARTICLE BEAMS; SENSORS; STORAGE RINGS; TAIWAN

Citation Formats

Luo, G. H., Chang, H. P., Chang, J. C., Chen, C. T., Chen, Jenny, Chen, J. R., Fann, C. S., Hsu, K. T., Hwang, C. S., Kuo, C. C., Liu, K. B., Liu, Y. C., Sheu, R. J., Ueng, T. S., Wang, D. J., and Wang, M. H. Overview of Top-up Injection at Taiwan Light Source. United States: N. p., 2007. Web. doi:10.1063/1.2435994.
Luo, G. H., Chang, H. P., Chang, J. C., Chen, C. T., Chen, Jenny, Chen, J. R., Fann, C. S., Hsu, K. T., Hwang, C. S., Kuo, C. C., Liu, K. B., Liu, Y. C., Sheu, R. J., Ueng, T. S., Wang, D. J., & Wang, M. H. Overview of Top-up Injection at Taiwan Light Source. United States. doi:10.1063/1.2435994.
Luo, G. H., Chang, H. P., Chang, J. C., Chen, C. T., Chen, Jenny, Chen, J. R., Fann, C. S., Hsu, K. T., Hwang, C. S., Kuo, C. C., Liu, K. B., Liu, Y. C., Sheu, R. J., Ueng, T. S., Wang, D. J., and Wang, M. H. Fri . "Overview of Top-up Injection at Taiwan Light Source". United States. doi:10.1063/1.2435994.
@article{osti_21049291,
title = {Overview of Top-up Injection at Taiwan Light Source},
author = {Luo, G. H. and Chang, H. P. and Chang, J. C. and Chen, C. T. and Chen, Jenny and Chen, J. R. and Fann, C. S. and Hsu, K. T. and Hwang, C. S. and Kuo, C. C. and Liu, K. B. and Liu, Y. C. and Sheu, R. J. and Ueng, T. S. and Wang, D. J. and Wang, M. H.},
abstractNote = {During the last two years, a series of beam parameters measurement, subsystem checkout, installation of various sensors, control program modification and hardware upgrade made the top-up injection possible in practical routine operation. Top-up injection is an operation mode in which the beam current in the storage ring is maintained above certain level by frequent injections. The routine current stability is in the range of 10-3 for long period of operation. The Top-up injection provides advantages in operation such as lower emittance, higher current, smaller coupling, smaller ID gaps, exotic bunch filling patterns, and higher bunch charge. It also provides constant thermal loading on all components in the storage ring and the optics components of beamlines, as well as constant signal to the beam position monitor. Discussions on the results of some measurements of booster and storage ring, the requirement of hardware upgrade and the summary of routine Top-up operation will be presented in this paper.},
doi = {10.1063/1.2435994},
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}
}