Title :
Upgrading to 500 mA of the stored beam current at SORTEC 1-GeV source facility
Author :
Kodaira, M. ; Awaji, N. ; Kishimoto, T. ; Mukugi, K. ; Watanabe, M. ; Iida, T. ; Tsuchidate, H.
Author_Institution :
SORTEC Corp., Ibaraki, Japan
Abstract :
At the SORTEC 1-GeV SR source facility for the study of X-ray lithography, the upgrade of the stored beam current to over 500 mA was performed. The RF cavity power supply was increased from 14 kW to 28 kW together with modification of the RF coupler. In addition, the pumping system and the cooling capacity of the storage ring were also reinforced. Reconstruction work and beam tests for upgrade were carried out for 3 months beginning April ´92. A stored beam current of 500 mA was successfully achieved within only 2 weeks after the beam operation was restarted. At present the lifetime has reached 25 h. These results are discussed from the aspects of the key issues for upgrading of the stored current and the SR beam aging effects on the time-evolution of the lifetime
Keywords :
beam handling equipment; electron accelerators; storage rings; 1 GeV; 14 to 28 kW; 25 h; 500 mA; RF cavity power supply; RF coupler; SORTEC 1-GeV source facility; SR beam aging; X-ray lithography; cooling capacity; lifetime time-evolution; pumping system; stored beam current; stored beam current upgrade; Cooling; Electrodes; Power supplies; Radio frequency; Storage rings; Strontium; Temperature; Vacuum systems; Voltage; X-ray lithography;
Conference_Titel :
Particle Accelerator Conference, 1993., Proceedings of the 1993
Conference_Location :
Washington, DC
Print_ISBN :
0-7803-1203-1
DOI :
10.1109/PAC.1993.308561
