EXPERIMENT AND ANALYSIS: PARTIAL LOSS OF INSULATION VACUUM IN K-500 SUPERCONDUCTING CYCLOTRON CRYOSTAT

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	EXPERIMENT AND ANALYSIS: PARTIAL LOSS OF INSULATION VACUUM IN K-500 SUPERCONDUCTING CYCLOTRON CRYOSTAT
	P. Bhattacharyya ; A. Dutta Gupta ; S. Saha ; M. Ahammed ; A. Mukherjee ; U. Panda ; U. Bhunia ; A.De ; S.Bandopadhaya ; C. Nandi ; C. Malik ; R. De ; S. Saha ; J. Chaudhuri ; R.K. Bhandari
	2010-09-10
会议日期	2010-09-06
会议地点	兰州
英文摘要	At higher currents in superconducting coil of the K500 superconducting cyclotron, it was found that the insulation vacuum surrounding the LHe vessel deteriorate with increasing current in the coil and finally leading to slow dump of the coil. This is a limitation for further increasing current value in the magnet coil. On the other hand, once the current value was returned to zero, vacuum reading reaches to its initial value. Experiment and analysis have been done to quantify the contribution of molecular gas conduction (FMGC) on heat load because of this partial loss of insulation vacuum. Experiment was also performed to find out how much betterment in terms of heat load is possible by incorporating an additional vacuum pump. The cryostat safety analysis because of the loss of insulation vacuum has become very important at this new scenario. An analysis has been done to know what could be the maximum pressure rise with time in case of loss of vacuum. This data has been used to know what should be the relieving mass flow rate to avoid any pressure burst accident. Finally this data has been compared with the existing relief valve. It is found that the existing safety system can take care of total loss of insulation vacuum scenario.
会议录	The 19th International Conference on Cyclotrons and their Applications, CYCLOTRONS'40
资助机构	IMP;Chinese Academy of Sciences
语种	英语
URL标识	查看原文
内容类型	会议论文
源URL	[http://ir.imp.cas.cn/handle/113462/8579]
专题	近代物理研究所_近代物理研究所知识存储（2010之前）
推荐引用方式 GB/T 7714	P. Bhattacharyya,A. Dutta Gupta,S. Saha,et al. EXPERIMENT AND ANALYSIS: PARTIAL LOSS OF INSULATION VACUUM IN K-500 SUPERCONDUCTING CYCLOTRON CRYOSTAT[C]. 见:. 兰州. 2010-09-06.