The Hall D solenoid helium refrigeration system at JLab

Conference · Wed Jan 01 00:00:00 EST 2014 · AIP Conf. Proc.

DOI:https://doi.org/10.1063/1.4860719· OSTI ID:1132614

Laverdure, Nathaniel A. ^[1]; Creel, Jonathan D. ^[1]; Dixon, Kelly d. ^[1]; Ganni, Venkatarao ^[1]; Martin, Floyd D. ^[1]; Norton, Robert O. ^[1]; Radovic, Sasa ^[1]

---

1. JLAB

Hall D, the new Jefferson Lab experimental facility built for the 12GeV upgrade, features a LASS 1.85 m bore solenoid magnet supported by a 4.5 K helium refrigerator system. This system consists of a CTI 2800 4.5 K refrigerator cold box, three 150 hp screw compressors, helium gas management and storage, and liquid helium and nitrogen storage for stand-alone operation. The magnet interfaces with the cryo refrigeration system through an LN2-shielded distribution box and transfer line system, both designed and fabricated by JLab. The distribution box uses a thermo siphon design to respectively cool four magnet coils and shields with liquid helium and nitrogen. We describe the salient design features of the cryo system and discuss our recent commissioning experience.

• Research Organization: Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
• Sponsoring Organization: USDOE Office of Science (SC)
• DOE Contract Number: AC05-06OR23177
• OSTI ID: 1132614
• Report Number(s): JLAB-ACE-13-1785; DOE/OR/23177-2995
• Journal Information: AIP Conf. Proc., Vol. 1573; Conference: ADVANCES IN CRYOGENIC ENGINEERING: Transactions of the Cryogenic Engineering Conference - CEC, 17–21 June 2013, Anchorage, Alaska
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
43 PARTICLE ACCELERATORS