NSRRC

Vacuum group has designed, fabricated the third generation 1.5GeV synchrotron accelerator Taiwan Light Source (TLS) ever since National Synchrotron Radiation Research Center (NSRRC) was established. It includes clean room, chemical clean room, high temperature baked oven, Aluminum welding room…etc., to name but a view. We designed large scaled ultra high vacuum (UHV) system such as transport line and storage ring and they are manufactured by domestic companies. As TLS started to operate in 1993, vacuum group had designed and constructed TLS beam lines such as BL17(W20)、BL19(XRL)、BL09(U5)、BL21(U9) and BL03(HF). in 2000 we also developed superconducting wiggler (SW) aluminum vacuum chamber , high heat load front end absorber, as well as manufacturing of photon beam position monitor (XBPM).

In 2004 vacuum group planned to design and fabricate 3GeV, 500mA Taiwan Photon Source (TPS) vacuum system and front end. The large scaled aluminum dipole chambers are solely made by domestic company, they are done by alcohol machining to reach UHV requirement. The aluminum vacuum chambers, include EPU and IU, cover 518 meter circumference have been made and installed, 7 front ends were also installed in 2015. These vacuum systems have passed the operation test and is successfully in operation. Note that up to 2018 we have installed 13 front ends.

1. R&D in vacuum system.
2. Welding of aluminum vacuum chamber technology.
3. Vacuum material surface water outgassing research.
4. Vacuum chamber glowing discharge cleaning research.
5. Photon stimulated desorption (PSD) research.
6. Joining of dissimilar material research.
7. R&D of high heat load components.
8. R&D of NEG coating system.