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Sokol, P. E.

Paper Title Page
THOAAB02 Upgrade of the LENS Proton Linac: Commissioning and Results 2611
  • A. Bogdanov, V. Anferov, M. Ball, D. V. Baxter, V. P. Derenchuk, A. V. Klyachko, T. Rinckel, P. E. Sokol, K. A. Solberg
    IUCF, Bloomington, Indiana
  Funding: The LENS project is supported by the NSF (grants DMR-0220560, DMR-0242300), the 21st Century Science and Technology fund of Indiana, Indiana University, and the Department of Defense

A Low Energy Neutron Source at Indiana University provides cold neutrons for material research and neutron physics as well as neutrons in the MeV energy range for the neutron radiation effects studies. Neutrons are being produced by a 7 MeV proton beam incident on a Beryllium target. Presently, the Proton Delivery System has been routinely running at 7 MeV, 8 mA and with up to 0.5% duty factor. The RF system of the accelerator is currently being upgraded by replacing 350 kW 425 MHz 12 tube amplifiers with two Litton 5773 klystron RF tubes capable of running at 425 MHz and 1 MW. A new DTL section will be added to increase proton beam energy from 7 to 13 MeV. A 3 MeV RFQ and 13 MeV DTL will be powered by the klystrons. The expected output is 20 mA and 13 MeV of proton current at more than 1% duty factor. Other upgrades include construction of the 2nd beamline, which copies the 1st line, and a new target station for the production of cold neutrons. In this contribution we discuss the results of the commissioning of the new DTL accelerator, new RF system and 2nd beamline. The future plans will also be outlined.

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