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Follow-on MERIT Testing at ORNL

The February 29, 2008 meeting at the NFMCC discussed the advancements in MERIT testing capabilities at ORNL, emphasizing the potential pursuit of additional liquid targets and research and development related to mercury (Hg). Integrated system testing without a beam is deemed beneficial. Existing experimental power supplies are set to move to ORNL, enhancing infrastructure. The new facilities, including a pit for MERIT equipment and significant power supply capabilities, are under construction and expected to be completed by September 2008. Hazard analyses will be performed as preparations continue.

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Follow-on MERIT Testing at ORNL

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  1. Follow-on MERIT Testing at ORNL Van Graves NFMCC Friday Meeting Feb 29, 2008

  2. New Capabilities at ORNL • Considering pursuit of other liquid targets (LBE) or additional Hg-related R&D with MERIT equipment • Performing integrated system testing (no-beam) at ORNL would be beneficial • Discussions with Tim Bigelow, ORNL Fusion Energy Division, indicate some existing experimental power supplies will be moved from Y-12 to ORNL this year • Had considered this option prior to CERN experiment but could not pursue due to schedule constraints • Some of the power supplies will have capability to power MERIT solenoid NFMCC Friday Meeting 29 Feb 2008

  3. 7627 Power Supply Building Bldg 7625 • New facility to be located near SNS Target Test Facility bldg • Construction has started • Schedule completion: Sept 2008 • Several power supplies will be installed Bldg 7627 NFMCC Friday Meeting 29 Feb 2008

  4. Bldg 7625 • Pit capable of housing MERIT experimental equipment • Approximately 40ft x 15ft x 12ft deep • 5000-gal LN2 dewar in place • 20T overhead crane NFMCC Friday Meeting 29 Feb 2008

  5. Equipment Layout 7627 Vertical field power supplies (capability of each) 650V peak 15,000 A pulsed > 5 sec Voltage and/or current can be controlled by SCR gate waveform control NFMCC Friday Meeting 29 Feb 2008

  6. Proposed MERIT Layout NFMCC Friday Meeting 29 Feb 2008

  7. Comments • Major infrastructure should be available in late 2008, but some connection costs will be incurred • Cost estimates are being obtained, should be available in March • Hazard analysis (radiation, Hg, LBE) will have to be performed, but no major obstacles envisioned • Hg system access and operations in activated condition unknown • Try to replace activated components or clean syringe pump such that it can be green-tagged? • Equipment access and modification will be more complicated (costly) than before experiment • Other power supplies will be available (capabilities unknown at this time) that might be useful for other HEP experiments in the future NFMCC Friday Meeting 29 Feb 2008

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