The pilot-runs of the helium cryogenic system for the TLS superconducting cavity

Hsiao, F. Z.; Li, H.C.; King, T.C.; Chang, Shian-Wen; Wang, C.; Lin, Ming-Chyuan; Chang, Jui-Chi; Chen, J.R.

doi:10.1109/pac.2003.1289134

Cited by 8 publications

(3 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The dewar pressure and the suction line pressure are kept at 1.4 bar and 1.05 bar, respectively. From operation experience of the TLS storage ring, a pressure fluctuation within +/-5 mbar is achievable for both the dewar pressure and the suction line pressure [5]. Such a pressure variation makes the pressure control of the cavity cryostat much easier to meet its strict requirement.…”

Section: Liquid Nitrogen Consumptionmentioning

confidence: 99%

The Helium Cryogenic System for the Taiwan Photon Source

Hsiao¹,

Li²,

Chang³

et al. 2006

AIP Conference Proceedings

View full text Add to dashboard Cite

At NSRRC, an electron accelerator with a beam current of 400 mA at 3 GeV and an emittance of 2 nm-rad is under planning. Four superconducting cavities are required to keep the electron energy in the storage ring and superconducting insertion magnets are used as the major devices providing the desired photon energy with high brilliance and flux. This paper shows the design features of the helium cryogenic system for superconducting devices. The cryogenic system consists of two cryogenic plants each with 450 W at 4.5 K for the cavities and one cryogenic plant with 600 W at 4.5 K for the magnets. Redundancy is achieved by switching valves and interconnection piping between the three cryogenic plants. Distribution of the liquid helium to the superconducting magnets is planned via two 250 m multichannel lines with up to 24 supplying ports for the candidate positions of superconducting magnets.

show abstract

Section: Liquid Nitrogen Consumptionmentioning

confidence: 99%

The Helium Cryogenic System for the Taiwan Photon Source

Hsiao¹,

Li²,

Chang³

et al. 2006

AIP Conference Proceedings

View full text Add to dashboard Cite

show abstract

“…One analyzer monitors the oxygen and humidity level at the cold box side; the other one monitors the oil aerosol and nitrogen level at the compressor side. The designed thermal dynamic state and preliminary test result of this helium system can be found in references [1,2].…”

Section: Introductionmentioning

confidence: 99%

Helium Distribution for the Superconducting Devices in NSRRC

Hsiao

Li²,

Chiou³

et al.

Proceedings of the 2005 Particle Accelerator Conference

Self Cite

View full text Add to dashboard Cite

In NSRRC up to five superconducting magnets and one superconducting cavity will be installed in the storage ring. At current stage two superconducting magnets and one superconducting cavity are kept in cold condition by one 450W helium cryogenic system. The crucial stable cryogenic condition required for the superconducting cavity is hard to achieve due to the join of superconducting magnets. A second cryogenic system dedicated for the superconducting magnets is planned in the next stage. A switch valve box serves the function for the backup of two cryogenic systems for each other and a 100 meter nitrogen-shielding helium transfer line dedicated for the five superconducting magnets are installed at end of the year 2004. This paper presents the helium distribution design of the two cryogenic systems and the commission result of the recent work.

show abstract

“…At NSRRC the installation of a helium cryogenic system, which is tailor-made for the cooling of the superconducting cavity, was finished at the end of October 2002 [1]. The cryogenic system had finished its commission work at the end of October 2003.…”

Section: Introductionmentioning

confidence: 99%

The Cryogenic Supervision System in NSRRC

Tsai²,

Hsiao³

et al.

Proceedings of the 2005 Particle Accelerator Conference

View full text Add to dashboard Cite

The helium cryogenic system in NSRRC is a fully automatic system using the Siemens SIMATIC 300 PLC (Programable Logic Controller). Modularization in both hardware and software makes it easy in the program reading, the system modification and the problem debug. Based on the LabVIEW program we had developed a supervision system taking advantage of the Internet technology to get system's real-time information in any office. The functions of this supervision system include the real-time data accessing with more than 300 digital/analog signals, the data restore, the history trend display, and the human machine interface. The data is accessed via a Profibus line connecting the PLC system and the supervision system with a maximum baud rate 1.5 Mbit/s. Using this supervision system makes it easy to master the status of the cryogenic system within a short time and diagnose the problem.

show abstract

The pilot-runs of the helium cryogenic system for the TLS superconducting cavity

Cited by 8 publications

References 1 publication

The Helium Cryogenic System for the Taiwan Photon Source

The Helium Cryogenic System for the Taiwan Photon Source

Helium Distribution for the Superconducting Devices in NSRRC

The Cryogenic Supervision System in NSRRC

Contact Info

Product

Resources

About