AVS 58th Annual International Symposium and Exhibition
    Vacuum Technology Division Tuesday Sessions
       Session VT-TuM

Paper VT-TuM12
Design and Construction of the Ultrahigh Vacuum System for the 3 GeV TPS Accelerator

Tuesday, November 1, 2011, 11:40 am, Room 111

Session: Accelerator and Large Vacuum System Design, Outgassing and Pumping
Presenter: Hsin-Pai Hsueh, National Synchrotron Radiation Research Center, Taiwan, Republic of China
Authors: G.Y. Hsiung, National Synchrotron Radiation Research Center, Taiwan, Republic of China
H.P. Hsueh, National Synchrotron Radiation Research Center, Taiwan, Republic of China
C.L. Chen, National Synchrotron Radiation Research Center, Taiwan, Republic of China
J.R. Chen, National Synchrotron Radiation Research Center, Taiwan, Republic of China
Correspondent: Click to Email
The ultrahigh vacuum system for the electron storage ring of the 3 GeV Taiwan Photon Source (TPS) accelerator has been started the construction since 2010. The critical vacuum components with lower impedance design including the bellows with spring-finger rf-contact, the metal gate valves with comb-finger rf-contact, pulsed magnet kicker ceramic chambers, beam position monitors, crotch absorbers, and the precise machined sector bending chambers and BPM chambers, have been manufactured. The large aluminum alloy (Al-) bending chambers for the arc-cells have been precisely machined with oil-free machine tools in the clean room, and undergoing the ozonate water cleaning after with the precisely in-house welding. Mass production of the vacuum equipments including the ion gauges, ion pumps, NEG pumps, and gate valves, has been contracted out and partially delivering following the schedule of the cell assembling. Each cell, contains two short Al-straight chambers and two Al-bending chambers, has been started the assembling and on-site welding on the pre-aligned girders in clean room forming an one-piece vacuum vessel about 14 m in length following by the vacuum baking to the ultra-high vacuum. The progress of prototyping development and the status of construction for the TPS ultrahigh vacuum system will be described in this paper.