To cut or not to cut, that is the question - An efficient method to replace TPS B chamber.
沈怡青1*, 詹哲鎧1, 張進春1, 吳怜慧1
1真空組, 國家同步輻射研究中心, 新竹, Taiwan
* presenting author:Albert Sheng,

TPS (Taiwan Photon Source) in NSRRC has gone though up to 200mA beam current at the third quarter of 2015. However due to some strange, miserable phenomenon that a threshold of is observed. High vacuum burst is found at SR02 B1 chamber each time it reaches over 200mA. Due to limited shutdown time, an efficient methodology is applied to chop and replace the B1 chamber on site. The method dramatically reduces the shutdown time and the final UHV quality is equally well controlled.

Keywords: Ultra high vacuum (UHV), Aluminum chamber, synchrotron radiation