Commissioning and Testing the 1970's Era LASS Solenoid Magnet in JLab's Hall D

Conference · Mon Jun 01 00:00:00 EDT 2015 · IEEE Transactions in Applied Superconductivity

DOI:https://doi.org/10.1109/TASC.2014.2385152· OSTI ID:1211609

Ballard, Joshua T. ^[1]; Biallas, George H. ^[1]; Brown, G.; Butler, David E. ^[1]; Carstens, Thomas J. ^[1]; Chudakov, Eugene A. ^[1]; Creel, Jonathan D. ^[1]; Egiyan, Hovanes ^[1]; Martin, F.; Qiang, Yi ^[1]; Smith, Elton S. ^[1]; Stevens, Mark A. ^[1]; Spiegel, Scot L. ^[1]; Whitlatch, Timothy E. ^[1]; Wolin, Elliott J. ^[2]; Ghoshal, Probir K. ^[1]

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1. Jefferson Lab, Newport News, VA
2. Carnegie Mellon University , Pittsburgh, PA

JLab refurbished and reconfigured the LASS1, 1.85m bore Solenoid and installed it as the principal analysis magnet for nuclear physics in the newly constructed, Hall D at Jefferson Lab. The magnet contains four superconducting coils within an iron yoke. The magnet was built in the early1970's at Stanford Linear Accelerator Center and used a second time at Los Alamos National Laboratory. The coils were extensively refurbished and individually tested by JLab. A new Cryogenic Distribution Box provides cryogens and their control valving, current distribution bus, and instrumentation pass-through. A repurposed CTI 2800 refrigerator system and new transfer line complete the system. We describe the re-configuration, the process and problems of re-commissioning the magnet and the results of testing the completed magnet.

• Research Organization: Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
• Sponsoring Organization: USDOE Office of Science (SC), Nuclear Physics (NP)
• DOE Contract Number: AC05-06OR23177
• OSTI ID: 1211609
• Report Number(s): JLAB-ACE-14-1944; DOE/OR/23177-3348
• Journal Information: IEEE Transactions in Applied Superconductivity, Vol. 25, Issue 3; Conference: ASC 2014 (Applied Superconductivity Conference), 10-15 Aug 2014. Charlotte, NC, USA
• Country of Publication: United States
• Language: English

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