AVS 51st International Symposium
    Vacuum Technology Tuesday Sessions
       Session VT-TuP

Paper VT-TuP12
The Development of a New Vacuum System for the Injection Section of the TLS

Tuesday, November 16, 2004, 4:00 pm, Room Exhibit Hall B

Session: Poster Session
Presenter: C.K. Chan, NSRRC, Taiwan
Authors: C.K. Chan, NSRRC, Taiwan
G.Y. Hsiung, NSRRC, Taiwan
K.Y. Kao, NSRRC, Taiwan
S.N. Hsu, NSRRC, Taiwan
J.Y. Yang, NSRRC, Taiwan
J.R. Chen, NSRRC, Taiwan
Correspondent: Click to Email
A new vacuum system for the injection section of the Taiwan Light Source (TLS) has been developed for improving the vacuum condition and the injection condition. The major problems to be solved include a higher heat load and a higher pressure rise from a superconducting wavelength shifter (SWLS), in-sufficient linear pumping speed near the ceramic chambers for the kickers and the injection chambers, et al. The new vacuum chambers to be replaced include (a) new kicker chambers, with thinner and wider aperture, with interior uniform Ti-coating for better injection efficiency and for preventing from SWLS irradiations; (b) new aluminum alloys vacuum chambers with interior NEG-coating for higher linear pumping speed; and (c) new beam duct for SWLS with lower outgassing rate. The pressure profile calculated by a computer program shows that the average vacuum pressure can be improved about 5 times lower based on this design. The results of the simulation and the vacuum test for the new chambers will be described.