CERN Accelerating science

Article
Title	High Precision Temperature Control and Analysis of RF Deionized Cooling Water System
Author(s)	Tsai, Zong-Da ; Chang, Jui-Chi ; Chen June Rong ; Liu, Chen-Yao
Affiliation	(NSRRC, Hsinchu) ; (NSRRC, Hsinchu; NTHU, Hsinchu)
Publication	2005
In:	21st IEEE Particle Accelerator Conference, Knoxville, TN, USA, 16 - 20 May 2005, pp.1057
Subject category	Accelerators and Storage Rings
Abstract	Previously, the Taiwan Light Source (TLS) has proven the good beam quality mainly depends on the utility system stability. A serial of efforts were devoted to these studies. Further, a high precision temperature control of the RF deionized cooling water system will be achieved to meet the more critical stability requirement. The paper investigates the mixing mechanism through thermal and flow analysis and verifies the practical influences. A flow mixing mechanism and control philosophy is studied and processed to optimize temperature variation which has been reduced from ±0.1? to ±0.01?. Also, the improvement of correlation between RF performance and water cooling stability will be presented.