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College Park, Maryland      June 6 - 10 , 2004

T1-D5 (9:30 AM): Technical Concepts for a Long-Wavelength Target Station for the Oak Ridge Spallation Neutron Source (Invited)

J. M. Carpenter (SNS, Oak Ridge National Laboratory , IPNS, Argonne National Laboratory)

We describe technical concepts for a second target station for the Oak Ridge Spallation Neutron Source (SNS.) From the outset, the design for the SNS has included the capacity for a second target station, which we conceive to be one that emphasizes provisions for long-wavelength applications. A group centered at Argonne has worked out and evaluated the design of a Long-Wavelength Target Station (LWTS) with a suite of possible instruments and supporting scientific cases. The LWTS will use the same proton delivery system as the High-Power Target Station (HPTS) now nearing completion, sharing a fraction of the available beam power in short, 10-Hz pulses and, for purposes of concept evaluation, 333 kW of beam power, and complementing the capabilities of the HPTS. The concept incorporates a number of new features, emphasizing cold neutron production and utilization, especially extensive use of neutron guides. The instrument suite, compiled mainly for reference purposes, will enable measurements that extend the range accessible at HPTS.

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