NDLI: Vacuum system of the cyclotrons in VECC, Kolkata

Content Provider	IEEE Xplore Digital Library
Author	Roy, A. Bhole, R.B. Akhtar, J. Yadav, R.C. Pal, S. Sarkar, D. Bhandari, R.K.
Copyright Year	2011
Description	Author affiliation: Variable Energy Cyclotron Centre, 1/AF Bidhan Nagar, Kolkata-700064, India (Roy, A.; Bhole, R.B.; Akhtar, J.; Yadav, R.C.; Pal, S.; Sarkar, D.; Bhandari, R.K.)
Abstract	The vacuum system of the K=130 Room Temperature Cyclotron (RTC) (operational since 1978) has been recently modernized and the same of the K=520 Superconducting Cyclotron (SCC), currently under commissioning, is being deployed for remote monitoring and control. The vacuum system of RTC is designed to achieve and maintain vacuum level of $2×10^{−6}$ mbar inside 23 $m^{3}$ volume of Resonator tank and DEE tank. This has been upgraded by replacing several valves, Freon units, gauges and pumps. The relay based manual control system has been replaced by PLC based automated system. The SCC vacuum system also has an elaborate arrangement comprising of turbo molecular pumping modules with associated isolation valves and characteristic gauges. This paper describes essential elements, typically used to obtain high $(1×10^{−7}$ mbar) vacuum using rotary pumps, diffusion pumps and cold traps/turbo-molecular pumps and other system components such as valves, gauges and baffles. The supervisory control methodology/scheme of both the vacuum systems, developed in-house using EPICS (Experimental Physics and Industrial Control System), a standard open-source software tool for designing distributed control system, is also elaborated here.
Starting Page	325
Ending Page	326
File Size	166675
Page Count	2
File Format	PDF
ISBN	9781424486625
e-ISBN	9781424486618
DOI	10.1109/IVEC.2011.5747007
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2011-02-21
Publisher Place	India
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Vacuum systems Valves Cyclotrons Helium Supervisory control EPICS Cyclotron Vacuum PLC
Content Type	Text
Resource Type	Article

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